Caterpillarwork toolhammer
Caterpillar 70S
Maintenance schedule, common problems & OEM parts breakdown
The Cat 70S (H70 S) is not a self-propelled machine. It is a mid-size, sound-suppressed hydraulic hammer/breaker work tool built to mount on an excavator, backhoe loader, or similar carrier in the roughly 5,000-8,000 kg (11,000-17,600 lb) operating-weight class. It is the silenced "S" version of the base Cat H70 power cell, sharing the same internals under an acoustic housing that reduces jobsite noise. It carries no onboard engine, undercarriage, transmission, or fuel/coolant system of its own; it runs entirely off the carrier's hydraulic supply. Working weight runs about 430-435 kg (948-959 lb) in the standard flat-top bracket configuration with tool, or roughly 370 kg (814 lb) in a pin-on mount. Impact frequency spans 600-1,850 blows per minute, with published energy-class figures in the 1,000-1,220 J (750-900 ft-lb) range depending on the spec sheet. Cat does not publish a clear production-year window for this work tool in its general catalog literature, so no start/end year is stated here rather than guessed.
Published energy-class numbers for the H70/H70 S line drift between catalog editions: some sheets list around 1,017 J, later revisions around 1,220 J for the same model designation. That gap reflects a change in how Cat rounded or tested the rating over time, not a mechanical redesign of the hammer, so a 2004-era spec sheet and a later one should not be read as directly comparable. Mechanically the H70 S stayed a standard H-series power cell with an auto-lube porting option, a field-replaceable lower tool bushing, and a membrane-style nitrogen accumulator, a wear-part layout Cat later carried into its GC and Performance hammer families rather than replacing outright. Because the H70/H70 S sold in real volume as a general-duty demolition and utility hammer, used units and their bushings, seal kits, buffers, and accumulator components stay in steady circulation on the secondary and rental attachment market. It is a working wear-part profile, not a rare or collector model, and most demand centers on the same handful of consumable components rather than the power cell casting itself.
Below: full specifications, fluids & capacities, the factory service schedule, common service parts, verified fault codes, what owners discuss, attachment guidance, the complete assembly directory, and a serial-number reference. Complete parts lists with full OEM part numbers, exploded diagrams, quantities, and fitment data are available free in Heavy Parts AI.
Caterpillar 70S specifications
Engine
| Power source | No onboard engine. The 70S is a hydraulic hammer (breaker) work tool, driven entirely by the carrier machine's own hydraulic system — there is no engine, fuel system, or independent power unit on the tool itself. |
Weights
| Recommended carrier (host machine) weight | 5,000-8,000 kg (11,000-17,600 lb) |
| Working weight, flat-top mount | 430 kg (948 lb) |
| Working weight, flat-top mount, silenced (S) | 435 kg (959 lb) |
| Working weight, pin-on mount | 370 kg (814 lb); silenced pin-on configurations run slightly heavier than the flat-top figure above |
| Working weight basis | Working weight is hammer plus standard tool plus an average mounting bracket — actual figure shifts with bracket and tool choice |
Dimensions
| Overall length, flat-top mount | 470 mm (18.5 in) |
| Overall length, flat-top mount, silenced (S) | 520 mm (20.5 in) |
| Overall length, pin-on mount | 690 mm (27.1 in) |
| Overall width, flat-top mount | 380 mm (15.0 in) |
| Overall width, flat-top mount, silenced (S) | 400 mm (15.7 in) |
| Overall width, pin-on mount | 348 mm (13.7 in) |
| Housing (hammer body) length, flat-top mount | 1,134 mm (44.6 in) |
| Housing (hammer body) length, flat-top mount, silenced (S) | 1,150 mm (45.3 in) |
| Housing (hammer body) length, pin-on mount | 1,228 mm (48.3 in) |
| Tool diameter | 70 mm (2.8 in), same across flat-top and pin-on configurations |
| Tool working length, flat-top mount | 402 mm (15.8 in) |
| Tool working length, flat-top mount, silenced (S) | 390 mm (15.3 in) |
| Tool working length, pin-on mount | 355 mm (14.0 in) |
Performance
| Impact (blow) frequency | 600-1,850 bpm |
| Energy class | 750 ft-lb (1,017 J) per the 2004 catalog edition; 900 ft-lb (1,220 J) per the 2011 catalog edition — figure varies by catalog revision, treat as a class range rather than a fixed number |
| Acceptable oil flow | 50-150 L/min (13-40 gpm) |
| Operating pressure | 140 bar / 2,030 psi (approximate, measured at max flow and back pressure) |
| Sound power level (Lwa) | 133 dB(A) standard, 127 dB(A) on the silenced (S) version, per Directive 2000/14/EC test method |
| Productivity estimate, non-reinforced concrete | 65-107 m3 (85-140 yd3) per 8-hour shift, general estimation only |
| Productivity estimate, reinforced concrete | 19-46 m3 (25-60 yd3) per 8-hour shift, general estimation only |
| Host carrier class | Sized for small hydraulic excavators, wheel excavators, and backhoe loaders in the 5-8 t operating weight class |
Service capacities (summary)
| Fluid capacities | Not applicable. The tool has no fuel tank, engine oil, or coolant system of its own — hydraulic oil is supplied on demand from the carrier's circuit. The hammer carries membrane-style high- and low-pressure accumulators rather than a fluid reservoir; these are largely maintenance-free by design. |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
70S fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Machine type note | n/a | The 70S is the Cat H70 S hydraulic hammer, a carrier-mounted work tool (breaker), sound-suppressed variant of the H70. It has no engine, cooling system, fuel tank, transmission, final drives, or axles of its own — those belong to the carrier excavator/backhoe loader and are covered by that machine's own OMM. Only the hydraulic interface and tool-lubrication grease apply to the hammer itself. |
| Hydraulic circuit (carrier-supplied, no dedicated hammer reservoir) | No separate tank on the hammer; it runs off the carrier machine's hydraulic system. Acceptable oil flow 50-150 L/min (13-39 US gpm) at an operating pressure around 140 bar (2,030 psi). | Use the hydraulic oil specified in the carrier machine's own OMM (typically Cat HYDO Advanced or an equivalent anti-wear hydraulic oil), graded to the carrier's ambient operating range. The hammer has no independent fluid spec beyond matching the carrier's flow and pressure window. |
| High/low-pressure accumulator (membrane style) | Sealed, non-serviceable membrane accumulator on this model — no field nitrogen recharge capacity is published for the H70 S in the sales/spec literature reviewed. | n/a — membrane-style accumulator is factory sealed, not a field-charged gas system like older piston/diaphragm hammer accumulators. Follow dealer service procedure if accumulator service is ever required. |
| Tool / lower bushing grease | Spec only — no fill capacity. Grease the lower tool bushing fitting with 10-15 gun strokes roughly every 2 hours of normal operation, more often (about hourly) in continuous or abrasive duty. | Cat Hydraulic Hammer Paste — a copper- and graphite-based extreme-pressure grease built to hold up under the heat and shock loading at the tool/bushing interface. Do not substitute ordinary chassis (lithium EP NLGI 2) grease; it breaks down at hammer operating temperatures and shortens bushing/tool life. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar 70S maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 50 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the 70S beyond the schedule
Predictive Maintenance & Fluid Analysis
Track accumulator nitrogen precharge pressure against OMM spec at every scheduled interval; a hammer that stalls, free-falls, or fires weak before the tool contacts the work almost always means lost precharge, not a cracked piston. Pull hydraulic oil samples from the carrier's hammer circuit at scheduled analysis stops to catch contamination before it scores the piston or cylinder bore. Watch blow rate against impact feel: rising bpm paired with falling punch usually signals fluid starvation or a fatigued accumulator membrane, not tool wear alone.
Corrective & Common Repairs
Most H70 S downtime traces to the lower tool bushing and its dust seal, worn past OMM limit once dirt and slurry pack in behind the retainer. Replace bushings and retention pins as a matched set rather than piecemeal, and renew the seal kit any time the power cell is opened for a bushing job. Chipped, mushroomed tool tips and cracked side buffers are the next most common wear items in demolition duty; dress tool wear early, since a broken tool can hammer the lower bushing out of tolerance in a single shift.
Overhaul & Rebuild Points
A full rebuild centers on the power cell: piston and cylinder bore condition, front head wear, and tie-rod or through-bolt torque and stretch all get checked at teardown. Replace the seal set and accumulator membrane together at the scheduled hour or annual point, whichever comes first, then recharge nitrogen to full spec rather than reusing the old precharge reading. At the same teardown, inspect upper and lower tool bushings, retention pins, and mounting bracket pins for wear, and on the sound-suppressed housing check isolators and buffers for cracking before reassembly.
Seasonal & Environment Servicing
Cold weather thickens Cat Hydraulic Hammer Paste in the auto-lube system and starves the tool bushings faster than the reservoir level suggests, so switch to a lower-viscosity grade and shorten manual greasing intervals in sub-zero work. In abrasive demolition or underwater duty, grease well above the standard interval and check the dust seal more often, since packed grit is the fastest way to burn out a lower bushing. In hot, dusty quarry duty, check accumulator precharge more frequently, since heat accelerates nitrogen loss and softens seal life.
70S common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 8T-7915 | Adapter-To Transmission Filter | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
70S attachments & work tools
Carrier / size class compatibility
The 70S is a small hydraulic hammer sized for a recommended carrier weight of about 5,000-8,000 kg (11,000-17,600 lb). Typical carriers in this class are compact/mini hydraulic excavators, wheeled excavators, skid steer and multi-terrain loaders, and backhoe loaders; exact carrier list varies by series and region, confirm fit against the current carrier's auxiliary hydraulic circuit before ordering.
Mounting bracket and coupler systems
Mounted through a size-matched top or box-style bracket that pins to the carrier's stick/dipper; skid steer and multi-terrain loader carriers use a quick-coupler style bracket (universal skid-steer plate) instead of a pin-on box bracket. Bracket selection is carrier-specific, not interchangeable across machine classes without swapping bracket kits.
Tool (moil/chisel/blunt) options
Standard bore accepts a tool diameter of roughly 70 mm (2.8 in), with moil point, chisel, and blunt tool styles offered for this size class. Moil suits sedimentary or weak rock and concrete penetration, chisel suits ductile rock and seam-opening work, and blunt suits demolition and boulder breaking where the tool is not meant to penetrate.
Hydraulic circuit and auxiliary kit requirements
Runs on an acceptable oil flow of roughly 50-150 lpm (13-39 gpm) at an operating pressure around 140 bar (2,030 psi); figures vary by configuration/series. Carriers without a factory hammer/auxiliary circuit need an auxiliary hydraulic kit with flow and relief-pressure control matched to this range, plus correct-size supply and return lines.
Auto-lube system
A hammer-mounted automatic lubrication system feeds grease to the tool bushing during operation, reducing manual greasing; grease cartridge level should be checked before each shift. This is a factory feature/option on this hammer size, not a separate carrier modification.
Accumulator design
Uses a membrane-style accumulator rather than a gas-charged type, allowing the charge to be checked and topped off with the hammer still mounted on the carrier. Accumulator charge should be verified on a regular service interval (roughly every 50 hours) as part of routine maintenance.
Sound-suppressed (S) configuration
The S designation denotes the sound-suppressed version of the base hammer, built with a fully enclosed housing that lowers sound power output versus the unsuppressed model (roughly 127 dB(A) suppressed vs 133 dB(A) standard, varies by configuration/series). Used where jobsite noise limits or residential/urban demolition rules apply.
All 70S assemblies by section
Every catalogued assembly group for the Caterpillar 70S. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Frame And Body
203-0932 Head Gp-Front
| 20***32 | Head Group-Front | 1 |
| 3J***07 | Seal Valve Assembly To; Seal- Tube Assembly To Logic Valve | 1 |
| 3K***60 | Seal Pilot Manifold On; Seal To Boom Check Valve Drain | 1 |
203-0922 Head Gp-Front
| 20***22 | Head Group-Front | 1 |
| 3J***07 | Seal Valve Assembly To; Seal- Tube Assembly To Logic Valve | 1 |
| 3K***60 | Seal Pilot Manifold On; Seal To Boom Check Valve Drain | 1 |
203-0908 Head Gp-Front
| 20***08 | Head Group-Front | 1 |
| 3J***07 | Seal Valve Assembly To; Seal- Tube Assembly To Logic Valve | 1 |
| 3K***60 | Seal Pilot Manifold On; Seal To Boom Check Valve Drain | 1 |
203-0912 Head Gp-Front
| 20***12 | Head Group-Front | 1 |
| 3J***07 | Seal Valve Assembly To; Seal- Tube Assembly To Logic Valve | 1 |
| 3K***60 | Seal Pilot Manifold On; Seal To Boom Check Valve Drain | 1 |
203-0927 Head Gp-Front
| 20***27 | Head Group-Front | 1 |
| 3J***07 | Seal Valve Assembly To; Seal- Tube Assembly To Logic Valve | 1 |
| 3K***60 | Seal Pilot Manifold On; Seal To Boom Check Valve Drain | 1 |
130-3794 Plate Gp-Hammer
| 09***69 | Pin-Cotter | 2 |
| 13***94 | Plate Group-Hammer | 1 |
| 3E***01 | Lockwasher | 8 |
158-4542 Plate Gp-Hammer
| 12***66 | Pin | 2 |
| 15***42 | Plate Group-Hammer | 1 |
| 15***48 | Plate Set-Housing | 1 |
158-4540 Plate Gp-Hammer
| 15***40 | Plate Group-Hammer | 1 |
| 15***55 | Plate Set-Housing | 1 |
| 3E***01 | Lockwasher | 8 |
194-6506 Plate Gp-Hammer
| 10***47 | Pin-Spring | 2 |
| 12***35 | Tube-Spacer | 2 |
| 12***37 | Buffer | 2 |
152-2516 Plate Gp-Hammer
| 12***66 | Pin | 2 |
| 15***79 | Buffer | 2 |
| 15***16 | Plate Group-Hammer | 1 |
112-4843 Plate Gp-Hammer
| 09***70 | Pin-Cotter | 2 |
| 11***43 | Plate Group-Hammer | 1 |
| 12***34 | Plate Set-Housing | 1 |
171-1375 Plate Gp-Hammer
| 09***69 | Pin-Cotter | 2 |
| 10***15 | Spacer | 2 |
| 17***75 | Plate Group-Hammer | 1 |
158-4544 Plate Gp-Hammer
| 12***66 | Pin | 2 |
| 15***96 | Pad-Buffer | 1 |
| 15***44 | Plate Group-Hammer | 1 |
152-0963 Plate Gp-Hammer
| 12***66 | Pin | 2 |
| 15***63 | Plate Group-Hammer | 1 |
| 15***78 | Plate Set-Housing | 1 |
157-2241 Plate Gp-Hammer
| 10***47 | Pin-Spring | 2 |
| 12***35 | Tube-Spacer | 2 |
| 12***37 | Buffer | 2 |
121-9539 Plate Gp-Hammer
| 10***15 | Spacer | 2 |
| 12***39 | Plate Group-Hammer | 1 |
| 12***40 | Plate As-Lh | 1 |
108-9421 Plate Gp-Hammer
| 09***69 | Pin-Cotter | 2 |
| 10***14 | Spacer | 2 |
| 10***15 | Spacer | 2 |
138-1114 Plate Gp-Hammer
| 09***73 | Bolt; (Socket Head) (M12x1.75x60mm) | 8 |
| 12***37 | Buffer | 2 |
| 12***40 | Pin-Cotter | 2 |
152-0965 Plate Gp-Hammer
| 15***65 | Plate Group-Hammer | 1 |
| 15***79 | Buffer | 1 |
| 15***87 | Plate Set-Housing | 1 |
124-5316 Plate Gp-Hammer
| 10***14 | Spacer | 2 |
| 10***15 | Spacer | 2 |
| 10***16 | Spacer | 4 |
138-1138 Plate Gp-Hammer
| 12***37 | Buffer | 2 |
| 12***40 | Pin-Cotter | 2 |
| 12***66 | Pin | 2 |
124-9642 Plate Gp-Hammer
| 12***42 | Plate Group-Hammer | 1 |
| 12***59 | Plate Set-Housing | 1 |
| 12***60 | Damper-Lh | 1 |
152-2524 Plate Gp-Hammer
| 15***79 | Buffer | 2 |
| 15***24 | Plate Group-Hammer | 1 |
| 15***25 | Plate Set-Housing | 1 |
157-2242 Plate Gp-Hammer
| 10***47 | Pin-Spring | 2 |
| 12***37 | Buffer | 2 |
| 15***94 | Plate Set-Housing | 1 |
191-9801 Plate Gp-Hammer
| 09***69 | Pin-Cotter | 2 |
| 10***15 | Spacer | 2 |
| 19***00 | Plate Group-Hammer | 1 |
124-4706 Plate Gp-Hammer
| 09***73 | Bolt; (Socket Head) (M12x1.75x60mm) | 8 |
| 12***35 | Tube-Spacer | 2 |
| 12***36 | Ring-Spacer | 16 |
157-2208 Plate Gp-Hammer
| 10***47 | Pin-Spring | 2 |
| 12***37 | Buffer | 2 |
| 12***66 | Pin | 2 |
Hydraulic System
229-2893 Accumulator Gp-Hydraulic
| 11***98 | Base; (High Pressure) | 1 |
| 11***09 | Membrane-Accumulator | 1 |
| 11***12 | Kit-Seal | 1 |
229-1547 Accumulator Gp-Hydraulic
| 09***06 | Bolt-Socket Head; (M16x2x80-mm) | 4 |
| 10***45 | Kit-Seal | 1 |
| 10***49 | Base | 1 |
122-7955 Accumulator Gp-Hydraulic
| 09***06 | Bolt-Socket Head; (M16x2x80-mm) | 4 |
| 10***45 | Kit-Seal | 1 |
| 10***49 | Base | 1 |
187-5289 Accumulator Gp-Hydraulic
| 11***09 | Membrane-Accumulator | 1 |
| 15***09 | Base; (Low Pressure) | 1 |
| 15***10 | Cover | 1 |
229-1502 Accumulator Gp-Hydraulic
| 11***09 | Membrane-Accumulator | 1 |
| 12***51 | Kit-Seal | 1 |
| 15***09 | Base; (Low Pressure) | 1 |
122-7317 Accumulator Gp-Hydraulic
| 11***98 | Base; (High Pressure) | 1 |
| 11***99 | Cover-Accumulator | 1 |
| 11***09 | Membrane-Accumulator | 1 |
229-1546 Accumulator Gp-Hydraulic
| 10***45 | Kit-Seal | 1 |
| 10***51 | Diaphragm | 1 |
| 10***55 | Base | 1 |
229-2894 Accumulator Gp-Hydraulic
| 09***27 | Seal-O-Ring | 1 |
| 11***93 | Base; (Low Pressure) | 1 |
| 11***95 | Membrane-Accumulator | 1 |
209-7381 Accumulator Gp-Hydraulic
| 20***78 | Cover | 1 |
| 20***81 | Accumulator Group-Hydraulic | 1 |
| 20***83 | Plug As | 1 |
229-1501 Accumulator Gp-Hydraulic
| 12***51 | Kit-Seal | 1 |
| 15***11 | Base; (High Pressure) | 1 |
| 15***13 | Diaphragm | 1 |
3q-7305 Accumulator Gp-Hydraulic
| 3E***24 | Lockwasher | 8 |
| 3E***04 | Seal-O-Ring; (119.5mm Id) | 1 |
| 3Q***05 | Accumulator Group-Hydraulic | 1 |
122-7314 Accumulator Gp-Hydraulic
| 09***27 | Seal-O-Ring | 1 |
| 11***93 | Base; (Low Pressure) | 1 |
| 11***94 | Cover-Accumulator | 1 |
232-3123 Accumulator Gp-Hydraulic
| 15***28 | Kit-Seal | 1 |
| 20***78 | Cover | 1 |
| 20***83 | Plug As | 1 |
229-1539 Accumulator Gp-Hydraulic
| 15***50 | Base; (High Pressure) | 1 |
| 15***52 | Diaphragm; (High Pressure) | 1 |
| 15***53 | Kit-Seal | 1 |
187-5290 Accumulator Gp-Hydraulic
| 15***11 | Base; (High Pressure) | 1 |
| 15***12 | Cover | 1 |
| 15***13 | Diaphragm | 1 |
187-7734 Accumulator Gp-Hydraulic
| 15***28 | Kit-Seal | 1 |
| 18***34 | Accumulator Group-Hydraulic | 1 |
| 3E***24 | Lockwasher | 8 |
122-7956 Accumulator Gp-Hydraulic
| 10***45 | Kit-Seal | 1 |
| 10***51 | Diaphragm | 1 |
| 10***55 | Base | 1 |
187-5338 Accumulator Gp-Hydraulic
| 15***50 | Base; (High Pressure) | 1 |
| 15***51 | Cover | 1 |
| 15***52 | Diaphragm; (High Pressure) | 1 |
187-5339 Accumulator Gp-Hydraulic
| 15***47 | Base; (Low Pressure) | 1 |
| 15***48 | Cover | 1 |
| 15***49 | Diaphragm | 1 |
3q-7304 Accumulator Gp-Hydraulic
| 15***28 | Kit-Seal | 1 |
| 3E***24 | Lockwasher | 4 |
| 3E***34 | Seal-O-Ring | 1 |
229-1540 Accumulator Gp-Hydraulic
| 15***47 | Base; (Low Pressure) | 1 |
| 15***49 | Diaphragm | 1 |
| 15***53 | Kit-Seal | 1 |
209-7382 Accumulator Gp-Hydraulic
| 15***28 | Kit-Seal | 1 |
| 20***77 | Cover | 1 |
| 20***82 | Accumulator Group-Hydraulic | 1 |
190-1446 Chart-Connecting Lines
| 19***46 | Chart-Connecting Lines | 1 |
191-4886 Chart-Connecting Lines
| 19***86 | Chart-Connecting Lines | 1 |
3q-7325 Kit-Seal
| 11***22 | Seal | 1 |
| 3E***02 | Seal-O-Ring; (104.5mm Id) | 2 |
| 3E***04 | Seal-O-Ring; (119.5mm Id) | 1 |
150-8828 Kit-Seal
| 15***28 | Kit-Seal | 1 |
| 15***22 | Seal | 1 |
| 15***36 | Seal | 2 |
152-2515 Kit-Seal
| 10***60 | Seal | 1 |
| 14***14 | Seal-U-Cup | 1 |
| 15***90 | Seal-Wiper | 1 |
152-2553 Kit-Seal
| 10***58 | Seal | 1 |
| 15***53 | Kit-Seal | 1 |
| 15***09 | Seal | 1 |
120-7351 Kit-Seal
| 09***83 | Seal-O-Ring (Id=174.00mm) | 1 |
| 12***31 | Shim, .025" Thk. | 2 |
| 12***33 | Seal | 1 |
109-4745 Kit-Seal
| 10***45 | Kit-Seal | 1 |
| 10***91 | Seal-O-Ring | 1 |
| 10***92 | Seal-O-Ring | 2 |
116-8212 Kit-Seal
| 09***27 | Seal-O-Ring | 1 |
| 11***86 | Seal | 2 |
| 11***87 | Seal | 4 |
295-0274 Lines Gp-Connecting
| 10***01 | Fitting; (Quick Disconnect, Female) | 1 |
| 10***06 | Fitting; (Quick Disconnect, Male) | 1 |
| 29***74 | Lines Group-Connecting | 1 |
158-4617 Lines Gp-Connecting
| 15***17 | Lines Group-Connecting | 1 |
| 6V***16 | Connector-Seal; (1- 5/16-12) | 4 |
| 6V***46 | Seal-O-Ring | 4 |
206-7694 Lines Gp-Connecting
| 13***83 | Hose As | 2 |
| 20***94 | Lines Group-Connecting | 1 |
| 5K***90 | Seal-To Hydraulic Cooler Inlet Port | 4 |
206-7693 Lines Gp-Connecting
| 13***63 | Hose As | 2 |
| 20***93 | Lines Group-Connecting | 1 |
| 5K***90 | Seal-To Hydraulic Cooler Inlet Port | 4 |
202-9130 Lines Gp-Connecting
| 20***30 | Lines Group-Connecting | 1 |
| 21***69 | Hose As | 2 |
| 6V***16 | Connector-Seal; (1- 5/16-12) | 2 |
159-2065 Lines Gp-Connecting
| 15***65 | Lines Group-Connecting | 1 |
| 17***70 | Hose As | 2 |
| 17***88 | Adapter As | 2 |
153-6477 Lines Gp-Connecting
| 15***96 | Fitting As; (Quick Disconnect, Male)(Quick Disconnect) | 1 |
| 15***97 | Fitting As; (Quick Disconnect, Female) | 1 |
| 15***81 | Hose As | 2 |
202-9134 Lines Gp-Connecting
| 17***64 | Hose As | 2 |
| 20***34 | Lines Group-Connecting | 1 |
| 6V***46 | Seal-O-Ring | 4 |
203-0977 Lines Gp-Connecting
| 15***94 | Coupler As-Quick Disconnect; (Female)(Quick Disconnect) | 1 |
| 15***95 | Fitting As; (Quick Disconnect, Male) | 1 |
| 17***58 | Hose As | 2 |
171-2566 Lines Gp-Connecting
| 15***94 | Coupler As-Quick Disconnect; (Female)(Quick Disconnect) | 1 |
| 15***95 | Fitting As; (Quick Disconnect, Male) | 1 |
| 16***79 | Adapter | 2 |
203-1008 Lines Gp-Connecting
| 15***96 | Fitting As; (Quick Disconnect, Male)(Quick Disconnect) | 1 |
| 15***97 | Fitting As; (Quick Disconnect, Female) | 1 |
| 15***81 | Hose As | 2 |
177-1907 Lines Gp-Connecting
| 17***07 | Lines Group-Connecting | 1 |
| 17***05 | Hose As | 2 |
| 1P***02 | Seal-Rectangular 28.83mm(1.136in) Id | 2 |
174-2299 Lines Gp-Connecting
| 10***01 | Fitting; (Quick Disconnect, Female) | 1 |
| 10***06 | Fitting; (Quick Disconnect, Male) | 1 |
| 13***75 | Hose As | 2 |
203-0998 Lines Gp-Connecting
| 15***94 | Coupler As-Quick Disconnect; (Female)(Quick Disconnect) | 1 |
| 15***95 | Fitting As; (Quick Disconnect, Male) | 1 |
| 15***81 | Hose As | 2 |
203-1011 Lines Gp-Connecting
| 15***94 | Coupler As-Quick Disconnect; (Female)(Quick Disconnect) | 1 |
| 15***95 | Fitting As; (Quick Disconnect, Male) | 1 |
| 15***81 | Hose As | 2 |
203-0984 Lines Gp-Connecting
| 10***15 | Connector | 2 |
| 15***94 | Coupler As-Quick Disconnect; (Female)(Quick Disconnect) | 1 |
| 15***95 | Fitting As; (Quick Disconnect, Male) | 1 |
157-7193 Lines Gp-Connecting
| 15***94 | Coupler As-Quick Disconnect; (Female)(Quick Disconnect) | 1 |
| 15***95 | Fitting As; (Quick Disconnect, Male) | 1 |
| 15***81 | Hose As | 2 |
203-1014 Lines Gp-Connecting
| 15***94 | Coupler As-Quick Disconnect; (Female)(Quick Disconnect) | 1 |
| 15***95 | Fitting As; (Quick Disconnect, Male) | 1 |
| 17***58 | Hose As | 2 |
161-1511 Lines Gp-Connecting
| 10***01 | Fitting; (Quick Disconnect, Female) | 2 |
| 10***06 | Fitting; (Quick Disconnect, Male) | 2 |
| 12***34 | Coupling As | 2 |
180-4179 Lines Gp-Connecting
| 15***94 | Coupler As-Quick Disconnect; (Female)(Quick Disconnect) | 1 |
| 15***95 | Fitting As; (Quick Disconnect, Male) | 1 |
| 16***79 | Adapter | 2 |
202-9133 Lines Gp-Connecting
| 14***48 | Fitting As; (Quick Disconnect, Male) | 1 |
| 14***49 | Fitting As; (Quick Disconnect, Female) | 1 |
| 17***57 | Hose As | 2 |
206-7691 Lines Gp-Connecting
| 10***01 | Fitting; (Quick Disconnect, Female) | 1 |
| 10***06 | Fitting; (Quick Disconnect, Male) | 1 |
| 12***57 | Hose-Supply | 1 |
202-9128 Lines Gp-Connecting
| 17***64 | Hose As | 2 |
| 20***28 | Lines Group-Connecting | 1 |
| 3D***24 | O-Ring - For Oil Drain & Level Plug (Items 3 & 7) | 2 |
203-1010 Lines Gp-Connecting
| 15***96 | Fitting As; (Quick Disconnect, Male)(Quick Disconnect) | 1 |
| 15***97 | Fitting As; (Quick Disconnect, Female) | 1 |
| 18***19 | Hose As | 2 |
206-7695 Lines Gp-Connecting
| 13***63 | Hose As | 2 |
| 14***35 | Connect Group; (Each Includes) | 2 |
| 20***95 | Lines Group-Connecting | 1 |
177-1855 Lines Gp-Connecting
| 16***43 | Seal | 1 |
| 17***55 | Lines Group-Connecting | 1 |
| 17***05 | Adapter As | 2 |
261-9508 Lines Gp-Connecting
| 26***08 | Lines Group-Connecting | 1 |
| 4J***20 | Seal (For Tilt Ports On Valve) | 2 |
| 5K***90 | Seal-To Hydraulic Cooler Inlet Port | 2 |
177-1858 Lines Gp-Connecting
| 17***58 | Lines Group-Connecting | 1 |
| 17***77 | Hose As | 2 |
| 6V***46 | Seal-O-Ring | 4 |
180-4006 Lines Gp-Connecting
| 15***96 | Fitting As; (Quick Disconnect, Male)(Quick Disconnect) | 1 |
| 15***97 | Fitting As; (Quick Disconnect, Female) | 1 |
| 15***44 | Seal | 1 |
172-3412 Lines Gp-Connecting
| 15***94 | Coupler As-Quick Disconnect; (Female)(Quick Disconnect) | 1 |
| 15***95 | Fitting As; (Quick Disconnect, Male) | 1 |
| 16***79 | Adapter | 2 |
177-1865 Lines Gp-Connecting
| 17***65 | Lines Group-Connecting | 1 |
| 17***64 | Hose As | 2 |
| 17***88 | Adapter As | 2 |
177-1866 Lines Gp-Connecting
| 17***66 | Lines Group-Connecting | 1 |
| 17***64 | Hose As | 2 |
| 17***88 | Adapter As | 2 |
171-2567 Lines Gp-Connecting
| 15***94 | Coupler As-Quick Disconnect; (Female)(Quick Disconnect) | 1 |
| 15***95 | Fitting As; (Quick Disconnect, Male) | 1 |
| 17***67 | Lines Group-Connecting | 1 |
177-1871 Lines Gp-Connecting
| 17***71 | Lines Group-Connecting | 1 |
| 17***59 | Hose As | 2 |
| 6V***16 | Connector-Seal; (1- 5/16-12) | 2 |
202-9129 Lines Gp-Connecting
| 17***50 | Hose As | 2 |
| 20***29 | Lines Group-Connecting | 1 |
| 3D***24 | O-Ring - For Oil Drain & Level Plug (Items 3 & 7) | 2 |
206-7692 Lines Gp-Connecting
| 10***01 | Fitting; (Quick Disconnect, Female) | 1 |
| 10***06 | Fitting; (Quick Disconnect, Male) | 1 |
| 12***71 | Hose-Supply | 1 |
203-0981 Lines Gp-Connecting
| 15***94 | Coupler As-Quick Disconnect; (Female)(Quick Disconnect) | 1 |
| 15***95 | Fitting As; (Quick Disconnect, Male) | 1 |
| 18***41 | Hose As | 2 |
294-9536 Lines Gp-Connecting
| 10***01 | Fitting; (Quick Disconnect, Female) | 1 |
| 10***06 | Fitting; (Quick Disconnect, Male) | 1 |
| 29***36 | Lines Group-Connecting | 1 |
298-4057 Lines Gp-Connecting
| 29***57 | Lines Group-Connecting | 1 |
| 29***58 | Hose As | 2 |
| 5K***90 | Seal-To Hydraulic Cooler Inlet Port | 2 |
202-9132 Lines Gp-Connecting
| 17***70 | Hose As | 2 |
| 20***32 | Lines Group-Connecting | 1 |
| 6V***16 | Connector-Seal; (1- 5/16-12) | 2 |
177-1856 Lines Gp-Connecting
| 16***43 | Seal | 1 |
| 17***56 | Lines Group-Connecting | 1 |
| 17***05 | Adapter As | 2 |
172-3411 Lines Gp-Connecting
| 15***94 | Coupler As-Quick Disconnect; (Female)(Quick Disconnect) | 1 |
| 15***95 | Fitting As; (Quick Disconnect, Male) | 1 |
| 15***44 | Seal | 1 |
206-7696 Lines Gp-Connecting
| 13***61 | Hose As | 2 |
| 14***35 | Connect Group; (Each Includes) | 2 |
| 20***96 | Lines Group-Connecting | 1 |
157-7194 Lines Gp-Connecting
| 15***94 | Coupler As-Quick Disconnect; (Female)(Quick Disconnect) | 1 |
| 15***95 | Fitting As; (Quick Disconnect, Male) | 1 |
| 15***81 | Hose As | 2 |
164-2430 Lines Gp-Connecting
| 15***94 | Coupler As-Quick Disconnect; (Female)(Quick Disconnect) | 1 |
| 15***95 | Fitting As; (Quick Disconnect, Male) | 1 |
| 16***79 | Adapter | 2 |
203-0983 Lines Gp-Connecting
| 15***94 | Coupler As-Quick Disconnect; (Female)(Quick Disconnect) | 1 |
| 15***95 | Fitting As; (Quick Disconnect, Male) | 1 |
| 18***95 | Hose As | 2 |
206-7756 Lines Gp-Connecting
| 10***01 | Fitting; (Quick Disconnect, Female) | 1 |
| 10***06 | Fitting; (Quick Disconnect, Male) | 1 |
| 12***57 | Hose-Supply | 1 |
131-2962 Lines Gp-Connecting
| 13***62 | Lines Group-Hammer; -Custom | 1 |
| 13***63 | Hose As | 2 |
| 15***95 | Adapter As | 2 |
131-3160 Lines Gp-Connecting
| 13***60 | Lines Group-Hammer; -Custom | 1 |
| 13***61 | Hose As | 2 |
| 15***95 | Adapter As | 2 |
127-9579 Lines Gp-Connecting
| 10***01 | Fitting; (Quick Disconnect, Female) | 1 |
| 10***06 | Fitting; (Quick Disconnect, Male) | 1 |
| 12***79 | Lines Group-Hammer; -Custom | 1 |
127-9577 Lines Gp-Connecting
| 10***01 | Fitting; (Quick Disconnect, Female) | 1 |
| 10***06 | Fitting; (Quick Disconnect, Male) | 1 |
| 12***71 | Hose-Supply | 1 |
131-2882 Lines Gp-Connecting
| 13***82 | Lines Group-Hammer; -Custom | 1 |
| 13***83 | Hose As | 2 |
| 15***95 | Adapter As | 2 |
131-2564 Lines Gp-Connecting
| 13***63 | Hose As | 2 |
| 13***64 | Lines Group-Hammer; -Custom | 1 |
| 15***95 | Adapter As | 2 |
128-6724 Lines Gp-Connecting
| 10***01 | Fitting; (Quick Disconnect, Female) | 1 |
| 10***06 | Fitting; (Quick Disconnect, Male) | 1 |
| 12***57 | Hose-Supply | 1 |
152-3395 Lubrication Gp-Automatic
| 06***44 | Grommet | 1 |
| 10***79 | Switch As-Pressure; (Implement/Swing & Travel) | 1 |
| 12***90 | Coupling-Permanent | 1 |
152-5342 Lubrication Gp-Automatic
| 06***44 | Grommet | 1 |
| 10***82 | Switch As-Pressure | 1 |
| 12***90 | Coupling-Permanent | 1 |
148-8098 Lubrication Gp-Automatic
| 10***03 | Coupling | 4 |
| 10***05 | Connector | 4 |
| 12***72 | Hose; (1500-cm) | 0 |
153-7532 Pump Gp-Lubrication
| 15***32 | Pump Group-Lubrication | 1 |
| 15***17 | Valve As-Relief; (Grease Pressure) | 1 |
| 15***19 | Board-Circuit | 1 |
152-3402 Pump Gp-Lubrication
| 15***02 | Pump Group-Lubrication | 1 |
| 15***17 | Valve As-Relief; (Grease Pressure) | 1 |
| 15***19 | Board-Circuit | 1 |
203-0907 Valve Gp-Control
| 11***83 | Spool-Valve | 1 |
| 11***12 | Kit-Seal | 1 |
| 20***06 | Body Group-Valve | 1 |
203-1003 Valve Gp-Control
| 15***44 | Spool-Valve | 1 |
| 15***53 | Kit-Seal | 1 |
| 20***01 | Body Group-Valve | 1 |
187-5291 Valve Gp-Control
| 09***22 | Plug | 2 |
| 10***60 | Seal | 1 |
| 15***92 | Body-Valve | 1 |
203-0990 Valve Gp-Control
| 10***45 | Kit-Seal | 1 |
| 10***61 | Spool-Valve | 1 |
| 10***60 | Seal | 1 |
187-7733 Valve Gp-Control
| 11***56 | Body-Valve | 1 |
| 11***83 | Spool-Valve | 1 |
| 11***12 | Kit-Seal | 1 |
203-0928 Valve Gp-Control
| 15***28 | Kit-Seal | 1 |
| 15***47 | Spool-Valve | 1 |
| 20***26 | Body Group-Valve | 1 |
187-5343 Valve Gp-Control
| 09***23 | Plug | 2 |
| 10***45 | Kit-Seal | 1 |
| 10***48 | Body-Valve | 1 |
187-7735 Valve Gp-Control
| 09***29 | Plug | 2 |
| 15***28 | Kit-Seal | 1 |
| 15***10 | Body-Valve | 1 |
203-1016 Valve Gp-Control
| 10***60 | Seal | 1 |
| 15***06 | Spool-Valve | 1 |
| 15***15 | Kit-Seal | 1 |
203-0945 Valve Gp-Control
| 15***47 | Spool-Valve | 1 |
| 20***43 | Body Group-Valve | 1 |
| 20***45 | Valve Group-Control | 1 |
187-5340 Valve Gp-Control
| 09***23 | Plug | 2 |
| 15***30 | Body-Valve | 1 |
| 15***44 | Spool-Valve | 1 |
187-7722 Valve Gp-Control
| 15***47 | Spool-Valve | 1 |
| 18***22 | Valve Group-Control | 1 |
| 3Q***06 | Body-Valve | 1 |
Service Equipment And Supplies
159-5914 Film Gp
| 15***52 | Film-Warning; (Stay Back) | 2 |
| 15***53 | Film-Information; (Read Omm) | 2 |
| 15***54 | Film-Warning; (Alert)(Safety Alert) | 2 |
121-7510 Film Gp
| 10***55 | Plate-Warning | 2 |
| 12***10 | Film Group | 1 |
| 3Q***78 | Film-Warning | 2 |
159-5913 Film Gp
| 15***52 | Film-Warning; (Stay Back) | 2 |
| 15***53 | Film-Information; (Read Omm) | 2 |
| 15***54 | Film-Warning; (Alert)(Safety Alert) | 2 |
121-9538 Film Gp
| 10***55 | Plate-Warning | 0 |
| 12***38 | Film Group | 1 |
| 13***42 | Film; (63) | 0 |
159-5916 Film Gp
| 14***69 | Film-Warning; (Alert) | 2 |
| 14***70 | Film-Warning; (Read Omm) | 2 |
| 15***56 | Film-Warning; (Stay Back 26-Ft) | 2 |
159-5919 Film Gp
| 14***69 | Film-Warning; (Alert) | 2 |
| 14***70 | Film-Warning; (Read Omm) | 2 |
| 15***56 | Film-Warning; (Stay Back 26-Ft) | 2 |
159-5923 Film Gp
| 14***69 | Film-Warning; (Alert) | 2 |
| 14***70 | Film-Warning; (Read Omm) | 2 |
| 15***56 | Film-Warning; (Stay Back 26-Ft) | 2 |
159-5924 Film Gp
| 14***69 | Film-Warning; (Alert) | 2 |
| 14***70 | Film-Warning; (Read Omm) | 2 |
| 15***56 | Film-Warning; (Stay Back 26-Ft) | 2 |
159-5926 Film Gp
| 15***52 | Film-Warning; (Stay Back) | 2 |
| 15***53 | Film-Information; (Read Omm) | 2 |
| 15***54 | Film-Warning; (Alert)(Safety Alert) | 2 |
159-5912 Film Gp
| 15***52 | Film-Warning; (Stay Back) | 2 |
| 15***53 | Film-Information; (Read Omm) | 2 |
| 15***54 | Film-Warning; (Alert)(Safety Alert) | 2 |
159-5911 Film Gp
| 15***52 | Film-Warning; (Stay Back) | 2 |
| 15***53 | Film-Information; (Read Omm) | 2 |
| 15***54 | Film-Warning; (Alert)(Safety Alert) | 2 |
159-5915 Film Gp
| 15***52 | Film-Warning; (Stay Back) | 2 |
| 15***53 | Film-Information; (Read Omm) | 2 |
| 15***54 | Film-Warning; (Alert)(Safety Alert) | 2 |
159-5910 Film Gp
| 15***52 | Film-Warning; (Stay Back) | 2 |
| 15***53 | Film-Information; (Read Omm) | 2 |
| 15***54 | Film-Warning; (Alert)(Safety Alert) | 2 |
159-5925 Film Gp
| 15***52 | Film-Warning; (Stay Back) | 2 |
| 15***53 | Film-Information; (Read Omm) | 2 |
| 15***54 | Film-Warning; (Alert)(Safety Alert) | 2 |
Work Tool Arrangement
213-9664chart-Hammer Ar -Small Hammers
| 21***64 | Chart-Hammer Ar; -Small Hammers | 1 |
213-9665 Chart-Hammer Ar -Merchandising
| 21***65 | Chart-Hammer Ar; -Merchandising | 1 |
203-0915 Hammer Ar-Hydraulic
| 12***15 | Tool Group; (For European Use Only) | 1 |
| 20***13 | Hammer Ar-Hydraulic | 1 |
| 20***15 | Hammer Ar-Hydraulic | 1 |
157-2655 Hammer Ar-Hydraulic
| 15***08 | Plate Group-Hammer | 1 |
| 15***40 | Hammer Group-Hydraulic | 1 |
| 15***55 | Hammer Ar-Hydraulic | 1 |
191-9802 Hammer Ar-Hydraulic
| 15***16 | Film Group | 1 |
| 19***01 | Plate Group-Hammer | 1 |
| 19***02 | Hammer Ar-Hydraulic | 1 |
203-0941 Hammer Ar-Hydraulic
| 15***08 | Plate Group-Hammer | 1 |
| 15***24 | Film Group | 1 |
| 20***29 | Hammer Group-Hydraulic | 1 |
152-2527 Hammer Ar-Hydraulic
| 15***24 | Plate Group-Hammer | 1 |
| 15***27 | Hammer Ar-Hydraulic | 1 |
| 15***28 | Hammer Group-Hydraulic | 1 |
158-4543 Hammer Ar-Hydraulic
| 15***43 | Hammer Ar-Hydraulic | 1 |
| 15***44 | Plate Group-Hammer | 1 |
| 15***19 | Film Group | 1 |
203-0952 Hammer Ar-Hydraulic
| 12***12 | Tool Group; (For European Use Only) | 1 |
| 20***51 | Hammer Ar-Hydraulic | 1 |
| 20***52 | Hammer Ar-Hydraulic | 1 |
203-0974 Hammer Ar-Hydraulic
| 12***12 | Tool Group; (For European Use Only) | 1 |
| 20***72 | Hammer Ar-Hydraulic | 1 |
| 20***74 | Hammer Ar-Hydraulic | 1 |
158-4538 Hammer Ar-Hydraulic
| 12***12 | Tool Group; (For European Use Only) | 1 |
| 15***29 | Hammer Ar-Hydraulic | 1 |
| 15***38 | Hammer Ar-Hydraulic | 1 |
203-0934 Hammer Ar-Hydraulic
| 12***14 | Tool Group; (European Source Only) | 1 |
| 20***33 | Hammer Ar-Hydraulic | 1 |
| 20***34 | Hammer Ar-Hydraulic | 1 |
203-0947 Hammer Ar-Hydraulic
| 10***21 | Plate Group-Hammer | 1 |
| 15***16 | Film Group | 1 |
| 20***46 | Hammer Group-Hydraulic | 1 |
161-3502 Hammer Ar-Hydraulic
| 12***14 | Tool Group; (European Source Only) | 1 |
| 15***43 | Hammer Ar-Hydraulic | 1 |
| 16***02 | Hammer Ar-Hydraulic | 1 |
203-0924 Hammer Ar-Hydraulic
| 13***38 | Plate Group-Hammer | 1 |
| 15***26 | Film Group | 1 |
| 20***09 | Hammer Group-Hydraulic | 1 |
203-1000 Hammer Ar-Hydraulic
| 12***12 | Tool Group; (For European Use Only) | 1 |
| 20***00 | Hammer Ar-Hydraulic, .. Cyl. | 1 |
| 20***06 | Hammer Ar-Hydraulic | 1 |
203-0986 Hammer Ar-Hydraulic
| 12***12 | Tool Group; (For European Use Only) | 1 |
| 20***86 | Hammer Ar-Hydraulic | 1 |
| 20***97 | .. Axle, Hammer Ar-Hydraulic, Axle; (Sub For At201657), . Axle | 1 |
131-0999 Hammer Ar-Hydraulic
| 12***59 | Hammer Group-Hydraulic | 1 |
| 13***99 | Hammer Ar-Hydraulic | 1 |
| 13***14 | Plate Group-Hammer | 1 |
124-4708 Hammer Ar-Hydraulic
| 12***07 | Hammer Ar-Hydraulic | 1 |
| 12***08 | Hammer Ar-Hydraulic | 1 |
| 12***15 | Tool Group; (For European Use Only) | 1 |
161-3503 Hammer Ar-Hydraulic
| 12***14 | Tool Group; (European Source Only) | 1 |
| 15***55 | Hammer Ar-Hydraulic | 1 |
| 16***03 | Hammer Ar-Hydraulic | 1 |
203-0979 Hammer Ar-Hydraulic
| 12***12 | Tool Group; (For European Use Only) | 1 |
| 20***79 | Hammer Ar-Hydraulic | 1 |
| 20***95 | Hammer Ar-Hydraulic | 1 |
203-0942 Hammer Ar-Hydraulic
| 12***14 | Tool Group; (European Source Only) | 1 |
| 20***41 | Hammer Ar-Hydraulic | 1 |
| 20***42 | Hammer Ar-Hydraulic | 1 |
203-1020 Hammer Ar-Hydraulic
| 15***65 | Plate Group-Hammer | 1 |
| 15***10 | Film Group | 1 |
| 20***18 | Hammer Group-Hydraulic | 1 |
109-0730 Hammer Ar-Hydraulic
| 10***36 | Hammer Ar-Hydraulic | 1 |
| 10***30 | Hammer Ar-Hydraulic | 1 |
| 12***12 | Tool Group; (For European Use Only) | 1 |
194-6508 Hammer Ar-Hydraulic
| 12***14 | Tool Group; (European Source Only) | 1 |
| 19***07 | Hammer Ar-Hydraulic | 1 |
| 19***08 | Hammer Ar-Hydraulic | 1 |
203-0911 Hammer Ar-Hydraulic
| 12***15 | Tool Group; (For European Use Only) | 1 |
| 20***10 | Hammer Ar-Hydraulic | 1 |
| 20***11 | Hammer Ar-Hydraulic | 1 |
131-1000 Hammer Ar-Hydraulic
| 12***15 | Tool Group; (For European Use Only) | 1 |
| 13***99 | Hammer Ar-Hydraulic | 1 |
| 13***00 | Hammer Ar-Hydraulic | 1 |
203-0950 Hammer Ar-Hydraulic
| 12***12 | Tool Group; (For European Use Only) | 1 |
| 20***49 | Hammer Ar-Hydraulic | 1 |
| 20***50 | Hammer Ar-Hydraulic | 1 |
203-0951 Hammer Ar-Hydraulic
| 13***94 | Plate Group-Hammer | 1 |
| 15***16 | Film Group | 1 |
| 20***46 | Hammer Group-Hydraulic | 1 |
203-0913 Hammer Ar-Hydraulic
| 13***14 | Plate Group-Hammer | 1 |
| 15***25 | Film Group | 1 |
| 20***09 | Hammer Group-Hydraulic | 1 |
203-0930 Hammer Ar-Hydraulic
| 15***41 | Plate Group-Hammer | 1 |
| 15***23 | Film Group | 1 |
| 20***29 | Hammer Group-Hydraulic | 1 |
203-1006 Hammer Ar-Hydraulic
| 15***16 | Plate Group-Hammer | 1 |
| 15***13 | Film Group | 1 |
| 20***04 | Hammer Group-Hydraulic | 1 |
161-3500 Hammer Ar-Hydraulic
| 12***12 | Tool Group; (For European Use Only) | 1 |
| 15***03 | Hammer Ar-Hydraulic | 1 |
| 16***00 | Hammer Ar-Hydraulic | 1 |
153-9927 Hammer Ar-Hydraulic
| 15***27 | Hammer Ar-Hydraulic | 1 |
| 15***42 | Plate Group-Hammer | 1 |
| 15***15 | Film Group | 1 |
203-0972 Hammer Ar-Hydraulic
| 15***16 | Film Group | 1 |
| 17***75 | Plate Group-Hammer | 1 |
| 20***46 | Hammer Group-Hydraulic | 1 |
203-0931 Hammer Ar-Hydraulic
| 12***14 | Tool Group; (European Source Only) | 1 |
| 20***30 | Hammer Ar-Hydraulic | 1 |
| 20***31 | Hammer Ar-Hydraulic | 1 |
203-0910 Hammer Ar-Hydraulic
| 12***06 | Plate Group-Hammer | 1 |
| 15***25 | Film Group | 1 |
| 20***09 | Hammer Group-Hydraulic | 1 |
194-6507 Hammer Ar-Hydraulic
| 15***40 | Hammer Group-Hydraulic | 1 |
| 15***23 | Film Group | 1 |
| 19***06 | Plate Group-Hammer | 1 |
161-3499 Hammer Ar-Hydraulic
| 12***12 | Tool Group; (For European Use Only) | 1 |
| 15***27 | Hammer Ar-Hydraulic | 1 |
| 16***99 | Hammer Ar-Hydraulic | 1 |
158-4541 Hammer Ar-Hydraulic
| 12***12 | Tool Group; (For European Use Only) | 1 |
| 15***27 | Hammer Ar-Hydraulic | 1 |
| 15***41 | Hammer Ar-Hydraulic | 1 |
161-3501 Hammer Ar-Hydraulic
| 12***14 | Tool Group; (European Source Only) | 1 |
| 15***25 | Hammer Ar-Hydraulic | 1 |
| 16***01 | Hammer Ar-Hydraulic | 1 |
124-4707 Hammer Ar-Hydraulic
| 12***59 | Hammer Group-Hydraulic | 1 |
| 12***06 | Plate Group-Hammer | 1 |
| 12***07 | Hammer Ar-Hydraulic | 1 |
191-9803 Hammer Ar-Hydraulic
| 12***12 | Tool Group; (For European Use Only) | 1 |
| 19***02 | Hammer Ar-Hydraulic | 1 |
| 19***03 | Hammer Ar-Hydraulic | 1 |
124-9641 Hammer Ar-Hydraulic
| 12***41 | Hammer Ar-Hydraulic | 1 |
| 12***42 | Plate Group-Hammer | 1 |
| 15***19 | Film Group | 1 |
171-1374 Hammer Ar-Hydraulic
| 15***16 | Film Group | 1 |
| 17***74 | Hammer Ar-Hydraulic | 1 |
| 17***75 | Plate Group-Hammer | 1 |
203-0975 Hammer Ar-Hydraulic
| 15***44 | Plate Group-Hammer | 1 |
| 15***19 | Film Group | 1 |
| 20***46 | Hammer Group-Hydraulic | 1 |
203-0995 Hammer Ar-Hydraulic
| 15***40 | Plate Group-Hammer | 1 |
| 15***14 | Film Group | 1 |
| 20***94 | Hammer Group-Hydraulic | 1 |
138-1136 Hammer Ar-Hydraulic
| 12***15 | Tool Group; (For European Use Only) | 1 |
| 13***36 | Hammer Ar-Hydraulic | 1 |
| 13***37 | Hammer Ar-Hydraulic | 1 |
150-8825 Hammer Ar-Hydraulic
| 15***25 | Hammer Ar-Hydraulic | 1 |
| 15***40 | Hammer Group-Hydraulic | 1 |
| 15***41 | Plate Group-Hammer | 1 |
171-1373 Hammer Ar-Hydraulic
| 12***12 | Tool Group; (For European Use Only) | 1 |
| 17***73 | Hammer Ar-Hydraulic | 1 |
| 17***74 | Hammer Ar-Hydraulic | 1 |
161-3498 Hammer Ar-Hydraulic
| 12***12 | Tool Group; (For European Use Only) | 1 |
| 15***02 | Hammer Ar-Hydraulic | 1 |
| 16***98 | Hammer Ar-Hydraulic | 1 |
105-4336 Hammer Ar-Hydraulic
| 10***36 | Hammer Ar-Hydraulic | 1 |
| 10***21 | Plate Group-Hammer | 1 |
| 15***16 | Film Group | 1 |
153-9929 Hammer Ar-Hydraulic
| 15***29 | Hammer Ar-Hydraulic | 1 |
| 15***40 | Plate Group-Hammer | 1 |
| 15***14 | Film Group | 1 |
112-4842 Hammer Ar-Hydraulic
| 11***42 | Hammer Ar-Hydraulic | 1 |
| 12***47 | Hammer Ar-Hydraulic | 1 |
| 12***15 | Tool Group; (For European Use Only) | 1 |
203-1046 Hammer Ar-Hydraulic
| 15***42 | Plate Group-Hammer | 1 |
| 15***23 | Film Group | 1 |
| 20***29 | Hammer Group-Hydraulic | 1 |
203-1047 Hammer Ar-Hydraulic
| 12***14 | Tool Group; (European Source Only) | 1 |
| 20***46 | Block, Hammer Ar-Hydraulic | 1 |
| 20***47 | Hammer Ar-Hydraulic, Block | 1 |
127-5546 Hammer Ar-Hydraulic
| 12***38 | Film Group | 1 |
| 12***46 | Hammer Ar-Hydraulic | 1 |
| 3D***24 | O-Ring - For Oil Drain & Level Plug (Items 3 & 7) | 2 |
130-3802 Hammer Ar-Hydraulic
| 12***12 | Tool Group; (For European Use Only) | 1 |
| 13***01 | Hammer Ar-Hydraulic | 1 |
| 13***02 | Hammer Ar-Hydraulic | 1 |
112-8203 Hammer Ar-Hydraulic
| 11***03 | Hammer Ar-Hydraulic | 1 |
| 12***38 | Film Group | 1 |
| 12***39 | Plate Group-Hammer | 1 |
159-1611 Hammer Ar-Hydraulic
| 12***12 | Tool Group; (For European Use Only) | 1 |
| 15***43 | Hammer Ar-Hydraulic | 1 |
| 15***11 | Hammer Ar-Hydraulic | 1 |
118-5577 Hammer Ar-Hydraulic
| 11***77 | Hammer Ar-Hydraulic | 1 |
| 12***10 | Film Group | 1 |
| 12***16 | Plate Group-Hammer | 1 |
154-2902 Hammer Ar-Hydraulic
| 15***62 | Hammer Group-Hydraulic | 1 |
| 15***63 | Plate Group-Hammer | 1 |
| 15***02 | Hammer Ar-Hydraulic | 1 |
203-1021 Hammer Ar-Hydraulic
| 12***12 | Tool Group; (For European Use Only) | 1 |
| 20***21 | Hammer Ar-Hydraulic | 1 |
| 20***26 | Hammer Ar-Hydraulic | 1 |
203-1026 Hammer Ar-Hydraulic
| 15***63 | Plate Group-Hammer | 1 |
| 15***11 | Film Group | 1 |
| 20***18 | Hammer Group-Hydraulic | 1 |
138-1137 Hammer Ar-Hydraulic
| 12***59 | Hammer Group-Hydraulic | 1 |
| 13***37 | Hammer Ar-Hydraulic | 1 |
| 13***38 | Plate Group-Hammer | 1 |
203-0976 Hammer Ar-Hydraulic
| 12***12 | Tool Group; (For European Use Only) | 1 |
| 20***75 | Hammer Ar-Hydraulic | 1 |
| 20***76 | Hammer Ar-Hydraulic | 1 |
203-0925 Hammer Ar-Hydraulic
| 12***15 | Tool Group; (For European Use Only) | 1 |
| 20***24 | Hammer Ar-Hydraulic | 1 |
| 20***25 | Hammer Ar-Hydraulic | 1 |
120-5947 Hammer Ar-Hydraulic
| 11***43 | Plate Group-Hammer | 1 |
| 12***47 | Hammer Ar-Hydraulic | 1 |
| 12***59 | Hammer Group-Hydraulic | 1 |
154-2903 Hammer Ar-Hydraulic
| 15***16 | Plate Group-Hammer | 1 |
| 15***28 | Hammer Group-Hydraulic | 1 |
| 15***03 | Hammer Ar-Hydraulic | 1 |
124-9640 Hammer Ar-Hydraulic
| 12***40 | Hammer Ar-Hydraulic | 1 |
| 12***41 | Hammer Ar-Hydraulic | 1 |
| 12***12 | Tool Group; (For European Use Only) | 1 |
203-0999 Hammer Ar-Hydraulic
| 12***12 | Tool Group; (For European Use Only) | 1 |
| 20***99 | Hammer Ar-Hydraulic | 1 |
| 20***05 | Hammer Ar-Hydraulic | 1 |
203-1005 Hammer Ar-Hydraulic
| 15***24 | Plate Group-Hammer | 1 |
| 15***12 | Film Group | 1 |
| 20***04 | Hammer Group-Hydraulic | 1 |
130-3801 Hammer Ar-Hydraulic
| 13***94 | Plate Group-Hammer | 1 |
| 13***01 | Hammer Ar-Hydraulic | 1 |
| 15***16 | Film Group | 1 |
203-0949 Hammer Ar-Hydraulic
| 15***16 | Film Group | 1 |
| 19***01 | Plate Group-Hammer | 1 |
| 20***46 | Hammer Group-Hydraulic | 1 |
157-2243 Hammer Ar-Hydraulic
| 15***40 | Hammer Group-Hydraulic | 1 |
| 15***42 | Plate Group-Hammer | 1 |
| 15***43 | Hammer Ar-Hydraulic | 1 |
203-1009 Hammer Ar-Hydraulic
| 12***12 | Tool Group; (For European Use Only) | 1 |
| 20***09 | Hammer Ar-Hydraulic | 1 |
| 20***20 | Hammer Ar-Hydraulic | 1 |
203-0933 Hammer Ar-Hydraulic
| 15***23 | Film Group | 1 |
| 19***06 | Plate Group-Hammer | 1 |
| 20***29 | Hammer Group-Hydraulic | 1 |
203-0997 Hammer Ar-Hydraulic
| 15***42 | Plate Group-Hammer | 1 |
| 15***15 | Film Group | 1 |
| 20***94 | Hammer Group-Hydraulic | 1 |
203-0948 Hammer Ar-Hydraulic
| 12***12 | Tool Group; (For European Use Only) | 1 |
| 20***47 | Cover, Hammer Ar-Hydraulic | 1 |
| 20***48 | Hammer Ar-Hydraulic, Cover | 1 |
Work Tools
230-9507 Bracket Gp-Mounting
| 23***07 | Bracket Group-Mounting | 1 |
| 26***36 | Bracket As | 1 |
| 8T***39 | Washer; (6.0mm Thk)(M21.5x6x45mm) | 4 |
215-6527 Bracket Gp-Mounting
| 21***26 | Bracket As | 1 |
| 21***27 | Bracket Group-Mounting | 1 |
| 21***65 | Shim | 6 |
280-9885 Bracket Gp-Mounting
| 28***85 | Bracket Group-Mounting | 1 |
| 28***86 | Bracket As-Mounting | 1 |
| 8T***23 | Washer-Plated; (22x35x3.5-mm Thk) | 16 |
290-0333 Bracket Gp-Mounting
| 29***33 | Bracket Group-Mounting | 1 |
| 29***34 | Bracket As | 1 |
| 29***18 | Rivet | 4 |
300-5047 Bracket Gp-Mounting
| 13***55 | Setscrew; (M4x0.7x8-mm) | 2 |
| 30***47 | Bracket Group-Mounting | 1 |
| 30***48 | Bracket As | 1 |
230-9505 Bracket Gp-Mounting
| 23***05 | Bracket Group-Mounting | 1 |
| 26***37 | Bracket As | 1 |
| 8T***39 | Washer; (6.0mm Thk)(M21.5x6x45mm) | 4 |
219-0667 Bracket Gp-Mounting
| 21***67 | Bracket Group-Mounting | 1 |
| 21***68 | Bracket As | 1 |
| 7X***54 | Bolt; (M16x2x70-mm) | 12 |
280-9827 Bracket Gp-Mounting
| 28***27 | Bracket Group-Mounting | 1 |
| 28***28 | Bracket As | 1 |
| 8T***23 | Washer-Plated; (22x35x3.5-mm Thk) | 16 |
333-0098 Bracket Gp-Mounting
| 13***55 | Setscrew; (M4x0.7x8-mm) | 2 |
| 33***98 | Bracket Group-Mounting | 1 |
| 33***99 | Bracket As | 1 |
222-7794 Bracket Gp-Mounting
| 22***94 | Bracket Group-Mounting | 1 |
| 22***98 | Bracket As | 1 |
| 7X***54 | Bolt; (M16x2x70-mm) | 8 |
305-0511 Bracket Gp-Mounting
| 30***11 | Bracket Group-Mounting | 1 |
| 30***12 | Bracket As | 1 |
| 7X***54 | Bolt; (M16x2x70-mm) | 12 |
226-2797 Bracket Gp-Mounting
| 22***97 | Bracket Group-Mounting | 1 |
| 22***96 | Bracket As | 1 |
| 8T***23 | Washer-Plated; (22x35x3.5-mm Thk) | 16 |
215-6525 Bracket Gp-Mounting
| 21***24 | Bracket As | 1 |
| 21***25 | Bracket Group-Mounting | 1 |
| 21***25 | Shim; (0.5-mm Thk) | 6 |
308-7541 Bracket Gp-Mounting
| 13***55 | Setscrew; (M4x0.7x8-mm) | 2 |
| 30***41 | Bracket Group-Mounting | 1 |
| 30***42 | Bracket As | 1 |
318-2265 Bracket Gp-Mounting
| 31***64 | Bracket As | 1 |
| 31***65 | Bracket Group-Mounting | 1 |
| 7X***54 | Bolt; (M16x2x70-mm) | 12 |
230-9504 Bracket Gp-Mounting
| 23***04 | Bracket Group-Mounting | 1 |
| 26***38 | Bracket As | 1 |
| 8T***31 | Nut; (M20x2.5-Thd) | 4 |
209-3306 Bracket Gp-Mounting
| 20***05 | Bracket As | 1 |
| 20***06 | Bracket Group-Mounting | 1 |
| 7X***54 | Bolt; (M16x2x70-mm) | 12 |
230-9503 Bracket Gp-Mounting
| 23***03 | Bracket Group-Mounting | 1 |
| 26***39 | Bracket As | 1 |
| 8T***39 | Washer; (6.0mm Thk)(M21.5x6x45mm) | 4 |
294-7874 Bracket Gp-Mounting
| 13***55 | Setscrew; (M4x0.7x8-mm) | 2 |
| 29***74 | Bracket Group-Mounting | 1 |
| 29***76 | Bracket As | 1 |
179-9859 Bracket Gp-Mounting
| 17***59 | Bracket Group-Mounting | 1 |
| 17***72 | Bracket As | 1 |
| 8T***23 | Washer-Plated; (22x35x3.5-mm Thk) | 16 |
230-9508 Bracket Gp-Mounting
| 23***08 | Bracket Group-Mounting | 1 |
| 26***35 | Bracket As | 1 |
| 8T***93 | Bolt-Plt; (M16 X 2.0 X 50) | 12 |
3q-7608 Bracket Gp-Mounting
| 16***56 | Bracket As | 1 |
| 3Q***08 | Bracket Group-Mounting | 1 |
| 7X***54 | Bolt; (M16x2x70-mm) | 12 |
305-4984 Bracket Gp-Mounting
| 13***55 | Setscrew; (M4x0.7x8-mm) | 2 |
| 30***84 | Bracket Group-Mounting | 1 |
| 30***85 | Bracket As | 1 |
294-7877 Bracket Gp-Mounting
| 13***55 | Setscrew; (M4x0.7x8-mm) | 2 |
| 29***77 | Bracket Group-Mounting | 1 |
| 29***78 | Bracket As | 1 |
204-3379 Bracket Gp-Mounting
| 09***96 | Bolt; (M20x2.5-Thd) | 4 |
| 20***79 | Bracket Group-Mounting | 1 |
| 20***13 | Bracket As | 1 |
222-4850 Bracket Gp-Mounting
| 22***50 | Bracket Group-Mounting | 1 |
| 22***66 | Bracket As | 1 |
| 7X***54 | Bolt; (M16x2x70-mm) | 12 |
155-4468 Bracket Gp-Mounting
| 15***68 | Bracket Group-Mounting | 1 |
| 15***77 | Bracket As | 1 |
| 8T***31 | Nut; (M20x2.5-Thd) | 4 |
191-0991 Bracket Gp-Mounting
| 13***55 | Setscrew; (M4x0.7x8-mm) | 2 |
| 19***91 | Bracket Group-Mounting | 1 |
| 20***54 | Bracket As | 1 |
189-2980 Chart-Hammer Tool
| 12***44 | Tool-Long Chisel | 1 |
| 12***46 | Tool-Moil Point | 1 |
| 15***16 | Shaft | 1 |
189-2981 Chart-Hammer Tool
| 12***30 | Tool-Compacting Plate | 1 |
| 12***94 | Tool-Long Chisel | 1 |
| 12***98 | Tool-Long Moil Point | 1 |
189-2978 Chart-Hammer Tool
| 10***35 | Tool-Moil Point | 1 |
| 10***36 | Tool-Chisel | 1 |
| 12***56 | Tool-Blunt | 1 |
189-2983 Chart-Hammer Tool
| 15***89 | Tool-Chisel | 1 |
| 15***90 | Tool-Moil Point | 1 |
| 15***93 | Tool-Compacting Plate | 1 |
189-2979 Chart-Hammer Tool
| 15***26 | Tool-Moil Point | 1 |
| 15***27 | Tool-Chisel | 1 |
| 18***03 | Tool-Long Chisel | 1 |
189-2982 Chart-Hammer Tool
| 15***94 | Tool-Chisel | 1 |
| 15***95 | Tool-Moil Point | 1 |
| 15***98 | Tool-Compacting Plate | 1 |
190-1444 Chart-Mounting Bracket
| 12***43 | Bracket Group-Mounting | 1 |
| 12***44 | Bracket As | 1 |
| 12***45 | Bracket Group-Mounting | 1 |
191-4885 Chart-Mounting Bracket
| 09***85 | Locknut; (M16x2-Thd) | 12 |
| 10***43 | Adjuster Group-Bucket | 1 |
| 10***57 | Adjuster Group-Bucket; (Bucket) | 1 |
203-0929 Hammer Gp-Hydraulic
| 11***82 | Plate | 1 |
| 15***28 | Kit-Seal | 1 |
| 15***29 | Bushing As | 1 |
203-1004 Hammer Gp-Hydraulic
| 09***73 | Bolt; (Socket Head) (M12x1.75x60mm) | 4 |
| 09***05 | Bolt-Socket Head; (M16x2x100-mm) | 8 |
| 10***60 | Washer | 4 |
203-0946 Hammer Gp-Hydraulic
| 11***22 | Seal | 1 |
| 20***22 | Head Group-Front | 1 |
| 20***45 | Valve Group-Control | 1 |
203-1018 Hammer Gp-Hydraulic
| 10***46 | Plug | 2 |
| 15***90 | Seal-Wiper | 1 |
| 15***91 | Seal | 1 |
157-2240 Hammer Gp-Hydraulic
| 11***82 | Plate | 1 |
| 15***28 | Kit-Seal | 1 |
| 15***29 | Bushing As | 1 |
152-2528 Hammer Gp-Hydraulic
| 09***73 | Bolt; (Socket Head) (M12x1.75x60mm) | 4 |
| 09***05 | Bolt-Socket Head; (M16x2x100-mm) | 8 |
| 10***60 | Washer | 4 |
203-0909 Hammer Gp-Hydraulic
| 11***57 | Cylinder | 1 |
| 11***58 | Piston | 1 |
| 11***60 | Bushing | 1 |
7q-8913 Hammer Gp-Hydraulic
| 09***05 | Bolt-Socket Head; (M16x2x100-mm) | 8 |
| 09***06 | Bolt-Socket Head; (M16x2x80-mm) | 8 |
| 10***60 | Washer | 4 |
120-7259 Hammer Gp-Hydraulic
| 10***46 | Plug | 1 |
| 11***56 | Body-Valve | 1 |
| 11***57 | Cylinder | 1 |
203-0994 Hammer Gp-Hydraulic
| 09***05 | Bolt-Socket Head; (M16x2x100-mm) | 8 |
| 09***06 | Bolt-Socket Head; (M16x2x80-mm) | 4 |
| 10***60 | Washer | 4 |
3q-7301 Hammer Gp-Hydraulic
| 11***22 | Seal | 1 |
| 3E***05 | Washer; (31x56x0.5-mm Thk) | 4 |
| 3E***24 | Lockwasher | 56 |
152-0962 Hammer Gp-Hydraulic
| 10***46 | Plug | 2 |
| 14***14 | Seal-U-Cup | 1 |
| 15***62 | Hammer Group-Hydraulic | 1 |
70S serial number reference
The ID tag for this hammer is riveted or bolted to the housing, typically near the top mounting bracket or valve body area. The serial number reads as an 8-character code: a 3-letter prefix identifying the product line, followed by a 5-digit sequence number showing production order within that line. Record the full code from the tag, not just the prefix, before ordering parts or pulling service history.
| Prefix | Identifies | Notes |
|---|---|---|
| 4KL | Cat H70 / H70S hydraulic hammer work tool, mid-size breaker for the 5-8 t excavator/backhoe carrier class | Serial prefix used for this hammer family across its full production run, including the H70S sound-suppressed housing variant. Individual documented serials span from the low sequence numbers (00500s-00600s) through the 10000-and-up range; the base H70 and silenced H70S share this same prefix rather than getting separate ones. Do not confuse with the unrelated modern Performance Hammers line (H110S and larger), which uses its own distinct three-letter prefixes. |
Frequently asked questions
What powers the Cat 70S (H70 S) hammer if it has no engine?
The H70 S has no engine, fuel system, or drivetrain of its own. It runs entirely off the hydraulic system of its carrier excavator or loader, drawing roughly 50-150 lpm (13-39 gpm) of oil flow at about 140 bar (2,030 psi) operating pressure.
What is the operating weight of the Cat 70S?
Working weight is about 430-435 kg (948-959 lb) in the standard flat-top bracket configuration with tool, or roughly 370 kg (814 lb) in a pin-on mount. Exact figures vary slightly by mounting bracket and tool combination.
What replaced the Cat 70S in Caterpillar's hammer lineup?
There is no clearly documented one-for-one successor. Cat continued the H-series alongside newer GC and Performance hammer families that use the same general wear-part design (auto-lube porting, replaceable bushings, membrane accumulator) but carry different model numbers, and no source confirms a specific end-of-production date or direct replacement model for the H70 S.
What 70S owners discuss
How much hydraulic flow and pressure does the H70 S need from the carrier, and what happens if it's mismatched?
Owners stress matching the carrier's auxiliary flow (L/min) and relief pressure (bar) to the hammer's rated spec before first use, not just picking a hammer by excavator tonnage class. Too little flow gives weak, slow blows and the hammer stops breaking material it used to handle easily. Too much flow or pressure overheats the oil and blows internal seals. The consistent advice is to check the excavator's aux circuit relief setting against the hammer's data plate rather than assume the carrier is already set up right.
What wear pattern shows up in the tool bushings and retention pin on this hammer?
The H70 S uses a slip-fit upper tool bushing and a field-serviceable lower bushing with a dust seal and grease-retention groove. Users report checking bushing and pin clearance at every tool change; once play exceeds the wear-limit dimensions the tool starts hammering off axis, which accelerates bushing, pin, and front-head wear together instead of staying isolated to one part. A roll pin backs up the tool retention pin, and that roll pin shearing is described as an early warning sign of a worn tool bore.
What does a weak or failing accumulator feel like on this hammer, and how is it serviced?
The membrane-style nitrogen accumulator smooths pressure spikes and keeps blow energy consistent; it's often the first thing checked on a hammer that starts to feel tired. A low or leaking nitrogen charge shows up as soft, inconsistent blows and more vibration kicking back into the carrier's stick and boom. Because this is a pressurized gas vessel, treat charging as service-manual work only. Have your dealer verify nitrogen pressure and membrane condition rather than checking it by feel.
How often does the H70 S need greasing, and does an auto-lube system change that?
The general rule discussed is regreasing roughly every two hours of active operation, watching for a bead of grease along the tool shank as the sign it's still lubricated; once that seepage stops, it needs regreasing right away. Machines running a carrier- or hammer-mounted auto-lube system still need the grease reservoir or cartridge level checked before each shift, since the auto system only helps if it's kept filled. Skipping intervals shows up first as a dry squeal from the front head and faster bushing wear.
What mounting bracket wear should be checked on the H70 S?
Owners check the mounting bracket pin diameter and ear width against the carrier's stick and bucket linkage at every inspection, treating shims as a temporary fix rather than a repair. Elongated pin bores or a bracket that lets the hammer rock on its pins point to fatigue in the bracket ears, not just play in the tool itself. Because a failed mounting connection can drop the attachment, have your dealer verify bracket and pin wear against limits rather than continuing to run on shims.
What does the S in H70 S mean for noise, and what should be inspected on the silenced housing?
The S designation refers to the fully enclosed, silenced box housing that lowers the hammer's noise level enough to work in noise-restricted sites near occupied buildings or hospitals. Discussion around silenced hammers focuses on inspecting the housing mounts and isolators for cracking or looseness, since a housing that has worked loose defeats the sound reduction and signals the internal shock mounts need attention rather than just a bolt torque check.
What should be checked before buying a used H70 S?
Buyer discussions converge on the same short list: check accumulator nitrogen pressure, since older units often lose charge; check bushing and tool-pin play against wear limits; check the mounting bracket ears and pins rather than trusting shims; ask for the greasing and seal-kit service history; and run the hammer against material to confirm blow rate and power feel right, not just that it cycles. Plan on an immediate seal kit as a budget line even on a unit that looks clean. Nitrogen charge and bracket wear are both safety-relevant, so have your dealer verify both before putting a used unit into daily service.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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