Caterpillarpaving compactorvibratory compactor
Caterpillar CB-434
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar CB-434 is a tandem, double-steel-drum vibratory asphalt (paving) compactor in Cat's light-to-medium utility class, built from 1990 into the 2000s across the CB-434, CB-434B, CB-434C and CB-434D/DXW generations. Operating weight runs roughly 6.07 to 7.4 metric tons (about 13,400 to 16,280 lb) depending on series and drum width, with the earlier B/C-series machines at the lighter end and the D-series heavier due to its larger fuel tank and updated frame hardware. Power comes from more than one Cat engine family across the run: parts-catalog and spec records tie the original base CB-434 (1990-96) to a turbocharged Cat 3114T rated 60 kW (80 hp) at 2200 rpm, the following CB-434B/C generation to a naturally aspirated Cat 3054 in the high-70s to low-80s hp (mid-50s to low-60s kW) class, and the CB-434D generation to a turbocharged Cat 3054C rated 62 kW (83 hp) at 2200 rpm - engine fitment varies by series and build, so confirm against the engine plate. Cat offered the CB-434 with a standard-width drum or a wider XW drum, a ROPS canopy, and multiple vibration amplitude settings for thick or thin asphalt lifts. Clear predecessor lineage for the CB-434 is not well documented in available records.
Across the series, Cat kept the drum-and-frame layout simple but reworked the parts that wear and the parts that sell machines. The D-series added a vertical-yoke articulation frame with 50/50 oscillation, an updated operator's station, automatic speed control with an impact-spacing indicator, more amplitude settings and a bigger fuel tank versus the earlier B/C-series. Cat eventually retired the CB-434 nameplate, folding this weight class into its metric-ton-named utility compactor range - first the CB34B, and today the CB3.7 and CB4.0 tandem rollers - so no current model wears the CB-434 badge. That end-of-line status is exactly why the machine still moves in the used and parts market: a straightforward 3054-family engine, uncomplicated hydrostatic propel and vibratory drive, and a large installed base make it a low-drama rebuild-and-resell candidate for small asphalt crews, municipal fleets and rental yards that don't need a current-generation roller.
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 CB-434 specifications
Engine
| Engine model | Cat 3114T, 4-cylinder inline diesel, turbocharged (naturally aspirated 3054-family engine also tied to early production/parts fitment references for this model line — verify by serial number) |
| Gross power | 60 kW (80 hp) at 2200 rpm |
| Net power | Not published in available spec sheets |
| Displacement | 4.4 L (268.6 cu in) |
| Cylinders | 4, inline, turbocharged |
| Emissions tier | Pre-emissions-tier era design (base CB-434 built 1990-1996, ahead of formal off-highway Tier standards); not documented as tiered |
Weights
| Operating weight | 6,065 kg (13,371 lb), approx. 6.07 t — later B/C/D series variants run heavier; confirm exact configuration by serial number |
| Shipping weight | Not separately published; close to operating weight less fluids/ballast |
| Static linear load (drum) | 22 kg/cm |
Dimensions
| Transport length | 4.19 m (13.75 ft / 165 in) |
| Transport width | 1.58-1.62 m (5.2-5.3 ft) |
| Transport height | 2.29-2.34 m (7.5-7.7 ft) |
| Wheelbase (drum center to center) | approx. 2.62 m (8.6 ft) |
| Ground clearance | 0.38 m (15 in) |
| Drum width | 1.42 m (56 in) |
| Drum diameter | 1.10 m (43.4 in) |
Performance
| Maximum travel speed | 11.6-11.75 km/h (7.2-7.3 mph) |
| Vibration frequency | 48 Hz (approx. 2,880 vpm) |
| Nominal amplitude | 0.25 cm (0.10 in) |
| Centrifugal force, high setting | 74.9 kN (16,800 lbf) |
| Centrifugal force, medium setting | approx. 59.1 kN (13,282 lbf) |
| Centrifugal force, low setting | approx. 37.4 kN (8,400 lbf) |
| Gradeability | Not published for this model |
Service capacities (summary)
| Fuel tank | 144.2 L (38.1 gal) |
| Hydraulic system | 57.2 L (15.1 gal) |
| Engine oil | 7.6 L (2.0 gal) |
| Cooling system | 17.0 L (4.5 gal) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
CB-434 fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase, with filter (Cat 3114T turbocharged diesel) | 7.6 L (2.0 US gal) | Cat DEO (Diesel Engine Oil). SAE 15W-40 for ambient above 0°C (32°F); SAE 10W-30 for colder ambient down to about -20°C (-4°F). Match viscosity grade to season per the machine's climate chart. |
| Cooling system | 17.0 L (4.5 US gal) | Cat DEAC (Diesel Engine Antifreeze/Coolant), conventional ethylene-glycol-based, premixed 50/50 for standard duty. This vintage of machine predates Cat ELC as standard fill; do not mix coolant types without a full system flush. |
| Fuel tank | 144.2 L (38.1 US gal) | No. 2-D diesel fuel, low-sulfur grade appropriate to the engine's emissions certification. Use No. 1-D or a winter blend in cold climates to prevent fuel waxing/gelling. |
| Hydraulic system (tank and circuit, supplies travel and vibratory drum drive motors) | 57.2 L (15.1 US gal) | Cat TDTO (Transmission/Drive Train Oil, TO-4 performance spec) is the standard fill for compactor hydraulic/hydrostatic drive circuits of this era. SAE 10W for cold ambient, SAE 30 for moderate ambient, SAE 50 for hot/high-load ambient. Confirm exact grade against the machine's own viscosity-vs-temperature chart. |
| Final drives / axles | Not applicable | The CB-434 propels its drums directly with hydrostatic drive motors fed from the main hydraulic system; it has no separate differential, axle, or gear-reduction final-drive housings with their own oil fill, unlike wheeled machines. |
| Grease (pin joints, articulation joint, drum/vibratory bearings) | Spec only, no reservoir capacity — service by grease gun at listed fittings | Cat MPGM (Multipurpose Grease), NLGI No. 2 lithium-complex grease fortified with molybdenum disulfide, rated for roughly -18°C to 149°C (-18°F to 300°F) service. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar CB-434 maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 50 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 6,000 h |
|
Servicing the CB-434 beyond the schedule
Predictive Maintenance & Fluid Analysis
On a CB-434, predictive care centers on the Cat 3114T/3054/3054C diesel and the drum vibratory bearing (exciter) housing rather than a transmission. Sample engine oil at every service to track wear metal from the 3054's bearings and injectors. Pull a vibratory bearing oil sample before the 1000-hour change to catch water intrusion early - a common failure mode on asphalt rollers exposed to the drum spray system. Watch hydraulic oil cleanliness on the propel and vibratory drive circuit, since contamination there shows up as amplitude drop before it shows up as noise.
Corrective & Common Repairs
Typical CB-434 repairs cluster around the articulation (oscillation) joint, drum scraper bars and the drum water-spray system. Worn articulation bushings show up as steering slop and an uneven compaction pattern; replace pins and bushings rather than shimming. Spray-bar nozzles clog with asphalt fines and starve the drums, causing pickup and surface tearing - clean or replace them before blaming the pump. Hydraulic hose fatigue at the propel motors and vibratory drive lines is common on higher-hour D-series units; inspect for weeping or chafing at every service, not just at failure.
Overhaul & Rebuild Points
Major CB-434 rebuild work centers on the vibratory drum bearing and eccentric weight assembly, which carries the compaction load and typically wears out before the 3054 engine does. Budget for a drum bearing/eccentric rebuild and drum shell inspection at mid-life. On the engine side, plan a top-end overhaul (injectors, valve train) on the naturally aspirated 3054 or turbocharged 3054C once oil consumption or blow-by climbs. Also check the vertical-yoke articulation frame (D-series) or oscillation joint (earlier series) for pin and bushing wear that compounds if left unaddressed.
Seasonal & Environment Servicing
Cold-weather CB-434 service means checking coolant concentration for the 3114T/3054/3054C, switching to a winter-grade engine oil, and fully draining the drum water-spray system to prevent freeze-cracked lines and pump housings. In hot, dusty asphalt-plant environments, clean the radiator and hydraulic oil cooler fins more often than the standard interval, since asphalt dust and fines cake fast and drive overheating on both the engine and vibratory hydraulic circuit. Before seasonal storage, run the water-spray system dry, grease all articulation and drum pivot points, and top off fuel to cut tank condensation.
CB-434 common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 5E-8346 | Filter As-Hydraulic | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
CB-434 fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| CID 0100 FMI 03 | Engine oil pressure sensor circuit, voltage above normal | Open circuit or short to a higher-voltage source in the oil pressure sensor wiring, or a failed sensor | Check sensor connector and harness for corrosion or chafing, confirm sensor supply voltage, replace sensor if wiring tests good |
| CID 0100 FMI 04 | Engine oil pressure sensor circuit, voltage below normal, or actual low oil pressure | Low engine oil level, worn oil pump, plugged suction screen, or a grounded sensor circuit | Stop engine, check oil level and condition first, then test sensor circuit resistance before restarting |
| CID 0110 FMI 03 | Engine coolant temperature sensor circuit, voltage above normal | Open sensor circuit, damaged connector pins, or failed coolant temperature sensor | Inspect connector for moisture or corrosion, verify continuity to the gauge/monitor, replace sensor if circuit checks out |
| CID 0110 FMI 00 | Coolant temperature above normal operating range | Low coolant level, blocked radiator fins, slipping or damaged fan drive, or a stuck thermostat | Idle down and let engine cool, check coolant level and radiator for debris, inspect fan drive belt or fan clutch |
| CID 0168 FMI 02 | Electrical system (battery/charging) voltage erratic or intermittent | Loose or corroded battery terminals, worn alternator brushes, or a failing voltage regulator | Clean and tighten battery connections, load-test the battery, check alternator output at idle and rated speed |
| CID 0190 FMI 08 | Engine speed sensor signal abnormal or erratic | Damaged timing/speed sensor, incorrect sensor air gap, or debris on the sensor tip | Inspect sensor mounting and gap, clean metal debris from the sensor tip, reseat connector |
| CID 0247 FMI 09 | Data link communication fault between the engine control and the machine monitor/gauge cluster | Damaged data link wiring, poor ground, or a monitor/module power supply issue | Check data link harness routing for chafe points, verify module grounds and power supply, reseat connectors |
| CID 0111 FMI 03 | Coolant level sensor circuit, voltage above normal (machines fitted with a coolant level sensor) | Open circuit at the coolant level probe or connector corrosion | Check coolant level first, then inspect probe wiring and connector before replacing the sensor |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
CB-434 attachments & work tools
Drum / compaction package
Base CB-434 series carries twin smooth steel drums around 1.5 m (59 in) wide; the later XW configuration steps up to a 1.7 m (67 in) wide drum set for extra lane coverage per pass. Drum diameter on the original 1990s series runs about 1.1 m. Drum width is a factory build spec on this class, not a field-swappable attachment.
Vibratory system
Dual amplitude, dual frequency vibration is selectable from the operator console, with frequency ranging roughly 53-70 Hz (about 3,200-4,200 vpm) and multiple amplitude steps depending on series and drum option. Vibration engages automatically off the propel lever, with a manual override also provided; exact frequency/amplitude spread varies by configuration/series.
Edge cutter / kerb wheel
A hydraulically actuated edge cutter (kerb wheel) is offered for shaping and trimming the mat edge against curbs and gutters. It mounts to the frame and runs off the machine's hydraulic circuit rather than a quick-coupler system.
Water spray / sprinkler system
Standard arrangement uses a single high-capacity polyethylene water tank built into the frame feeding a dual-pump spray system, with only one pump running at a time to extend service life and an auto-select mode that swaps pumps by direction of travel. Spray is adjustable between constant and infinitely variable intermittent settings, and triple-stage filtration is used to cut clogging; exact tank capacity is not consistently published and should be confirmed against the specific series.
Drum scraper bars
Adjustable scraper bars ride against each drum to shed asphalt buildup and keep the drum surface clean during compaction. These are standard fitted equipment on this class rather than an optional work tool.
Operator protection: canopy vs. cab
Offered with a 2-post ROPS/FOPS canopy as one configuration, with an enclosed operator cab as an alternative factory option on later series. Choice of canopy or cab affects operating weight slightly (a few tens of kilograms difference reported between configurations).
Articulated-oscillating frame joint
The tandem-drum chassis uses a combined articulation and oscillation joint between the front and rear drum modules for steering and ground contact on uneven surfaces. This is a structural/frame feature standard to the class, not a bolt-on attachment.
Control console options
Operator control layout and console features (vibration on/off, amplitude/frequency select, spray mode) vary between series generations; later D-series and XW models carry more integrated electronic controls than the original 1990s-era CB-434. Treat exact control feature sets as varying by series.
All CB-434 assemblies by section
Every catalogued assembly group for the Caterpillar CB-434. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Basic Engine
9y8186 Adapter Gp-Fan
| 9Y***86 | Adapter Group-Fan | 1 |
4w5281 Balancer Gp
| 4W***81 | Balancer Group | 1 |
4w4865 Camshaft Gp-Single
| 4W***65 | Camshaft Group-Single; (Single) | 1 |
871788 Cap Gp-Hydraulic Oil
| 08***88 | Cap Group-Hydraulic Oil Tank | 1 |
4w3462 Carrier Gp-Seal
| 4W***62 | Carrier Group-Seal; Carrier Group (Seal) | 1 |
4w6619 Cover Gp-Cylinder Block
| 4W***19 | Cover Group-Cylinder Block | 1 |
7e2979 Cover Gp-Cylinder Block
| 7E***79 | Cover Group-Cylinder Block | 1 |
7l0004 Cover Gp-Front
| 7L***04 | Cover Group-Front; (Front Housing) | 1 |
9y8046 Cover Gp-Sound Suppression
| 9Y***46 | Cover Group-Sound Suppression; Cover Gp-Valve-Sound Suppression | 1 |
7e9027 Cover Gp-Sound Suppression
| 7E***27 | Cover Group-Sound Suppression | 1 |
7w7337 Cover Gp-Valve Mechanism
| 7W***37 | Cover Group-Valve Mechanism; Valve Mechanism Cover Group | 1 |
4w3579 Crankshaft Gp
| 4W***79 | Crankshaft Group; Crankshaft Group | 1 |
9y3461 Cylinder Block Gp
| 9Y***61 | Cylinder Block Group | 1 |
7e5311 Cylinder Block Gp
| 7E***11 | Cylinder Block Group | 1 |
4w3724 Cylinder Block Gp
| 4W***24 | Cylinder Block Group; Cylinder Block Group | 1 |
9y6164 Cylinder Head As
| 9Y***64 | Cylinder Head As | 1 |
7w5664 Cylinder Head As
| 7W***64 | Cylinder Head As | 1 |
4w3815 Cylinder Head Gp
| 4W***15 | Cylinder Head Group | 1 |
4w3814 Cylinder Head Gp
| 4W***14 | Cylinder Head Group | 1 |
9y8849 Cylinder Head Gp*R
| 9Y***49 | Cylinder Head Group | 1 |
9y8872 Cylinder Head Gp
| 9Y***72 | Cylinder Head Group; Cylinder Head Group | 1 |
7c4566 Drain Gp-Oil Pan
| 7C***66 | Drain Group-Oil Pan; -Magnetic Plug | 1 |
7c0044 Drive Gp-Fan
| 7C***44 | Drive Group-Fan; Fan Drive Group | 1 |
7x9559 Drive Gp-Power Unit
| 7X***59 | Drive Group-Pump | 1 |
9y2755 Flywheel Gp
| 9Y***55 | Flywheel Group | 1 |
2w8475 Gear Gp-Front
| 2W***75 | Gear Group-Front; Front Gear Group | 1 |
9y4856 Housing Gp-Flywheel
| 9Y***56 | Housing Group-Flywheel | 1 |
7l0002 Housing Gp-Front
| 7L***02 | Housing Group-Front | 1 |
7e5620 Housing Gp-Front
| 7E***20 | Housing Group-Front | 1 |
4w2515 Lifting Eye Gp-Engine
| 4W***15 | Lifting Group | 1 |
868920 Lines Gp-Air
| 08***20 | Lines Group-Air | 1 |
4w4866 Mechanism Gp-Fuel Pump & Valve
| 4W***66 | Mechanism Group-Fuel Pump & Valve | 1 |
4p4740 Mechanism Gp-Fuel Pump & Valve
| 4P***40 | Mechanism Group-Fuel Pump & Valve | 1 |
7c5402 Pan Gp-Oil
| 7C***02 | Pan Group-Oil; Oil Pan Group | 1 |
7e1300 Rod & Piston Gp
| 7E***00 | Piston & Rod Group; Connecting Rod And Piston Group | 1 |
9y5538 Rod & Piston Gp-4 Required
| 9Y***38 | Piston & Rod Group | 1 |
5e8204 Power Unit As-Part 3 Of 4
| 5E***04 | Power Unit As | 1 |
5e8204 Power Unit As-Part 4 Of 4
| 5E***04 | Power Unit As | 1 |
5e8204 Power Unit As-Part 1 Of 4
| 5E***04 | Power Unit As | 1 |
5e8204 Power Unit As-Part 2 Of 4
| 5E***04 | Power Unit As | 1 |
7r9030 Power Unit Gp-Part 1 Of 4
| 7R***30 | Power Unit Group | 1 |
7r9030 Power Unit Gp-Part 4 Of 4
| 7R***30 | Power Unit Group | 1 |
7r9030 Power Unit Gp-Part 3 Of 4
| 7R***30 | Power Unit Group | 1 |
7r9030 Power Unit Gp-Part 2 Of 4
| 7R***30 | Power Unit Group | 1 |
9y8185 Pulley Gp-Crankshaft
| 9Y***85 | Pulley Group-Crankshaft | 1 |
4w5429 Pulley Gp-Crankshaft
| 4W***29 | Pulley Group-Crankshaft; Crankshaft Pulley Group | 1 |
9y0757 Pulley Gp-Fan Drive
| 9Y***57 | Pulley Group-Fan Drive | 1 |
9y0758 Pulley Gp-Fan Drive
| 9Y***58 | Pulley Group-Fan Drive; (Fan Drive) | 1 |
7c6077 Rocker Arm Gp-Valve
| 7C***77 | Rocker Arm Group-Valve | 1 |
1077722 Rocker Arm Gp
| 10***22 | Rocker Arm Group-Valve | 1 |
4w1016 Seal Gp-Crankshaft
| 4W***16 | Seal Group-Crankshaft | 1 |
7r3513 Tank Gp-Expansion
| 7R***13 | Tank Group-Expansion | 1 |
4p4372 Valve Mechanism Gp
| 4P***72 | Valve Mechanism Group | 1 |
Cooling System
4w4869 Cooler Gp-Engine Oil
| 4W***69 | Cooler Group-Engine Oil; Engine Oil Cooler Group | 1 |
7c6998 Drive Gp-Water Pump-Belt
| 7C***98 | Drive Group-Water Pump; Water Pump Drive Group | 1 |
7c9048 Lines Gp-Water
| 7C***48 | Lines Group-Water | 1 |
7c7030 Pump Gp-Water
| 7C***30 | Pump Group-Water; Water Pump Group | 1 |
7c6438 Pump Gp-Water
| 7C***38 | Pump Group-Water | 1 |
871795 Fan & Radiator Gp
| 08***95 | Radiator & Fan Group; Fan & Radiator Gp | 1 |
1068375 Radiator Gp
| 10***75 | Radiator Group | 1 |
6l4100 V-Belt Set
| 5N***92 | V-Belt; (Air Conditioner Compressor) | 2 |
| 6L***00 | V-Belt Set; V-Belt Set (Includes 2 Belts) | 1 |
Drum
5e8299 Drum Gp-Front-Part 1 Of 2
| 5E***99 | Drum Group-Front | 1 |
5e8299 Drum Gp-Front-Part 2 Of 2
| 5E***99 | Drum Group-Front | 1 |
7r9032 Drum Gp-Front-Part 1 Of 2
| 7R***32 | Drum Group-Front | 1 |
7r9032 Drum Gp-Front-Part 2 Of 2
| 7R***32 | Drum Group-Front | 1 |
7r9033 Drum Gp-Rear-Part 2 Of 2
| 7R***33 | Drum Group-Rear | 1 |
7r9033 Drum Gp-Rear-Part 1 Of 2
| 7R***33 | Drum Group-Rear | 1 |
5e8301 Drum Gp-Rear-Part 2 Of 2
| 5E***01 | Drum Group-Rear | 1 |
5e8301 Drum Gp-Rear-Part 1 Of 2
| 5E***01 | Drum Group-Rear | 1 |
6r0893 Motor Gp*R
| 6R***93 | Motor Group | 1 |
5e8219 Motor Gp-Propel
| 5E***19 | Motor Group | 1 |
5e8254 Motor Gp-Propel
| 5E***54 | Motor Group | 1 |
Engine Arrangement
7c4454 Engine Ar-Part 1 Of 2
| 1N***76 | Filter Group-Fuel | 1 |
| 1N***77 | Breather Group; Breather Group | 1 |
| 2W***75 | Gear Group-Front; Front Gear Group | 1 |
9e2155 Engine Ar
| 1W***98 | Manifold Group-Exhaust; Exhaust Manifold Group | 1 |
| 4W***09 | Lines Group-Air; Air Lines Group | 1 |
| 4W***15 | Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group | 1 |
9e2212 Engine Ar
| 1W***98 | Manifold Group-Exhaust; Exhaust Manifold Group | 1 |
| 2S***79 | V-Belt Set | 1 |
| 4W***09 | Lines Group-Air; Air Lines Group | 1 |
7c4454 Engine Ar-Part 2 Of 2
| 4W***16 | Seal Group-Crankshaft | 1 |
| 4W***13 | Plate-Serial Number (Engine) | 1 |
| 4W***62 | Manifold Group-Inlet | 1 |
8c9296 Compactor Ar
| 5E***04 | Power Unit As | 1 |
| 5E***92 | Structural Group | 1 |
| 5E***99 | Drum Group-Front | 1 |
8c9297 Compactor Ar-Merchandising
| 08***92 | Suppression Ar-Sound | 1 |
| 6R***85 | Mat Group-Water | 2 |
| 6R***19 | Electrical Group | 1 |
6r0950 Compactor Ar-Merchandising
| 08***92 | Suppression Ar-Sound | 1 |
| 6R***50 | Merchandise Ar | 1 |
| 6R***51 | Cab Ar | 1 |
Frame
6w8505 Adjuster Gp-Seat
| 6W***05 | Adjuster Group-Seat; -Suspension | 1 |
5e5921 Bearing Gp
| 5E***21 | Bearing Group | 1 |
6r0951 Cab Ar
| 08***39 | Platform Group | 1 |
| 1G***01 | Platform Group | 1 |
| 5E***80 | Cab Group | 1 |
5e5880 Cab Gp-Part 3 Of 3
| 5E***80 | Cab Group | 1 |
5e5880 Cab Gp-Part 2 Of 3
| 5E***80 | Cab Group | 1 |
5e5880 Cab Gp-Part 1 Of 3
| 5E***80 | Cab Group | 1 |
870691 Classification Gp-V2
| 08***91 | Classification Group-V2 | 1 |
1g9700 Counterweight Gp-Front
| 1G***00 | Counterweight Group-Front | 1 |
6w2519 Cushion As-Arm
| 6W***19 | Cushion As-Arm | 1 |
6w2520 Cushion As-Arm
| 6W***20 | Cushion As-Arm | 1 |
871794 Door Gp
| 08***94 | Door Group | 1 |
5e6164 Door Gp
| 5E***64 | Door Group | 1 |
871415 Door Gp-Lh
| 08***15 | Door Group-Lh | 1 |
871414 Door Gp-Rh
| 08***14 | Door Group-Rh | 1 |
871419 Enclosure Gp-Engine
| 08***19 | Enclosure Group-Engine | 1 |
5e6201 Heater Gp
| 5E***01 | Heater Group | 1 |
1g3773 Heater Gp
| 1G***73 | Heater Group | 1 |
1g3752 Heater Gp-Cab
| 1G***52 | Heater Group-Cab | 1 |
5e6277 Lifting Gp
| 5E***77 | Lifting Group | 1 |
6r1961 Lines Gp-Heater
| 6R***61 | Lines Group-Heater; Lines Gp | 1 |
5e6081 Mirror Gp-Lh
| 5E***81 | Mirror Group-Lh | 1 |
5e6182 Mirror Gp-Rh
| 5E***82 | Mirror Group-Rh | 1 |
5e6194 Panel Gp-Instrument
| 5E***94 | Panel Group-Instrument | 1 |
6v6561 Pivot Gp-Wiper Arm
| 6V***61 | Pivot Group-Wiper Arm; (Wiper Arm) | 1 |
871239 Platform Gp
| 08***39 | Platform Group | 1 |
6r3377 Platform Gp
| 6R***77 | Platform Group | 1 |
1g6501 Platform Gp-Part 2 Of 2
| 1G***01 | Platform Group | 1 |
1g6501 Platform Gp-Part 1 Of 2
| 1G***01 | Platform Group | 1 |
7r9034 Sheet Metal Gp
| 7R***34 | Platform Group-Open | 1 |
813628 Pump Gp
| 08***28 | Pump Group-Cab Tilt | 1 |
5e9822 Roller Gp-Push
| 5E***22 | Roller Group-Push | 1 |
7x3593 Rops Gp
| 7X***93 | Rops Group | 1 |
5e6099 Seal Gp-Rear
| 5E***99 | Seal Group-Rear | 1 |
5e8499 Seat Gp
| 5E***99 | Seat Group | 1 |
9c5986 Seat Gp-Suspension
| 9C***86 | Seat Group | 1 |
9c8194 Seat Gp-Adjustable-Suspension-Fabric
| 9C***94 | Seat Group-Adjustable | 1 |
5e8305 Frame Gp-Part 2 Of 2
| 5E***05 | Sheet Metal Group | 1 |
5e8305 Frame Gp-Part 1 Of 2
| 5E***05 | Sheet Metal Group | 1 |
7r9031 Structural Gp-Part 1 Of 2
| 7R***31 | Structural Group | 1 |
5e8292 Structural Gp-Part 2 Of 2
| 5E***92 | Structural Group | 1 |
7r9031 Structural Gp-Part 2 Of 2
| 7R***31 | Structural Group | 1 |
5e8292 Structural Gp-Part 1 Of 2
| 5E***92 | Structural Group | 1 |
870692 Suppression Ar-Sound
| 08***92 | Suppression Ar-Sound | 1 |
| 08***16 | Muffler Group | 1 |
| 08***19 | Enclosure Group-Engine | 1 |
5e9642 Suspension Gp
| 5E***42 | Suspension Group-Seat | 1 |
6w8502 Seat Gp-Suspension-Part 2 Of 2
| 6W***02 | Suspension Group-Seat | 1 |
6w8502 Seat Gp-Suspension-Part 1 Of 2
| 6W***02 | Suspension Group-Seat | 1 |
8v1841 Visor Gp-Cab
| 8V***41 | Visor Group-Cab | 1 |
1013883 Weight Ar-Added
| 10***83 | Weight Ar | 1 |
| 1G***00 | Counterweight Group-Front | 1 |
| 7X***93 | Rops Group | 1 |
5e6202 Wiper Gp-Front
| 5E***02 | Wiper Group-Front | 1 |
5e6203 Wiper Gp-Rear
| 5E***03 | Wiper Group-Rear | 1 |
5e5836 Wiper Gp-Windshield
| 5E***36 | Wiper Group-Windshield | 1 |
Fuel System And Governor
7w8600 Control Gp-Fuel Injection
| 7W***00 | Control Group-Fuel Injection; Fuel Injection Control Group | 1 |
7e9429 Control Gp-Governor
| 7E***29 | Control Group-Governor | 1 |
7c5203 Control Gp-Governor
| 7C***03 | Control Group-Governor | 1 |
4p0666 Drive Gp-Governor & Transfer Pump-Flexible Drive
| 4P***66 | Drive Group-Gov & Transfer Pump | 1 |
6i0232 Drive Gp-Governor & Transfer Pump
| 6I***32 | Drive Group-Gov & Transfer Pump | 1 |
7e8794 Drive Gp-Governor & Transfer Pump
| 7E***94 | Drive Group-Gov & Transfer Pump | 1 |
4p4775 Drive Gp-Gov & Transfer Pump
| 4P***75 | Drive Group-Gov & Transfer Pump | 1 |
7w8179 Governor & Transfer Pump Drive Gp
| 7W***79 | Drive Group-Gov & Transfer Pump | 1 |
7w4812 Fastener Gp-Governor
| 7W***12 | Fastener Group-Governor; Fastener Group(Governor) (~1c K5811) | 1 |
1n3476 Filter Gp-Fuel
| 1N***76 | Filter Group-Fuel | 1 |
9y2678 Governor Gp
| 9Y***78 | Governor Group-Unit Injector | 1 |
4p1581 Governor Gp-Unit Injector
| 4P***81 | Governor Group-Unit Injector | 1 |
7c6951 Governor Gp
| 7C***51 | Governor Group-Unit Injector | 1 |
7e7661 Governor Gp-Unit Injector
| 4P***12 | Governor Group-Unit Injector | 1 |
| 7E***60 | Governor Group-Unit Injector | 1 |
| 7E***61 | Governor Group-Unit Injector | 1 |
1006179 Governor Gp-Unit Injector
| 10***79 | Governor Group-Unit Injector | 1 |
4p5512 Governor Gp-Unit Injector
| 4P***12 | Governor Group-Unit Injector | 1 |
4p5503 Governor Gp-Unit Injector
| 4P***03 | Governor Group-Unit Injector | 1 |
4p4778 Governor Gp-Unit Injector
| 4P***78 | Governor Group-Unit Injector | 1 |
4p1694 Governor Gp-Unit Injector
| 4P***94 | Governor Group-Unit Injector | 1 |
| 7W***12 | Fastener Group-Governor; Fastener Group(Governor) (~1c K5811) | 1 |
| 7W***34 | Lines Group-Governor Oil; Governor Oil Lines Group | 1 |
7e3660 Governor Gp-Unit Injector
| 7E***60 | Governor Group-Unit Injector | 1 |
6i0231 Governor Gp-Unit Injector
| 6I***31 | Governor Group-Unit Injector | 1 |
7w9854 Lines Gp-Fuel Filter
| 7W***54 | Lines Group-Fuel Filter | 1 |
7e5621 Lines Gp-Governor Oil
| 7E***21 | Lines Group-Governor Oil | 1 |
7w8434 Lines Gp-Governor Oil
| 7W***34 | Lines Group-Governor Oil; Governor Oil Lines Group | 1 |
7c1500 Pump Gp-Fuel Injection
| 7C***00 | Pump Group-Fuel Injection; Fuel Injection Punp Group | 1 |
Hydraulic System
1223405 Motor Gp-Hydraulic
| 12***05 | Motor Group-Hydraulic | 1 |
Intake And Exhaust System
7c2290 Cover Gp-Inlet Manifold
| 7C***90 | Cover Group-Inlet Manifold; Inlet Manifold Cover Group | 1 |
9y7865 Drive Gp-Accessory
| 9Y***65 | Drive Group-Accessory | 1 |
7e8945 Drive Gp-Accessory
| 7E***45 | Drive Group-Accessory | 1 |
4w6609 Lines Gp-Air
| 4W***09 | Lines Group-Air; Air Lines Group | 1 |
4w6615 Lines Gp-Turbocharger Oil
| 4W***15 | Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group | 1 |
1w8898 Manifold Gp-Exhaust
| 1W***98 | Manifold Group-Exhaust; Exhaust Manifold Group | 1 |
4w5362 Manifold Gp-Inlet
| 4W***62 | Manifold Group-Inlet | 1 |
871416 Muffler Gp
| 08***16 | Muffler Group | 1 |
9y3124 Turbocharger Gp
| 9Y***24 | Turbocharger Group | 1 |
9y6745 Turbocharger Gp
| 1W***95 | Plate-Identification; (Turbocharger Cartridge) | 1 |
| 9Y***45 | Turbocharger Group | 1 |
7c9916 Turbocharger Gp
| 7C***16 | Turbocharger Group | 1 |
Lubrication System
1n3477 Breather Gp
| 1N***77 | Breather Group; Breather Group | 1 |
9y9998 Filler Gp-Oil
| 9Y***98 | Filler Group-Oil | 1 |
7w5645 Filler Gp-Engine Oil
| 7W***45 | Filler Group-Oil | 1 |
869597 Filter Gp-Remote
| 08***97 | Filter Group | 1 |
7c0896 Filter Gp-Engine Oil
| 7C***96 | Filter Group-Engine Oil; Engine Oil Filter Group | 1 |
5e9701 Filter Gp-Remote Oil
| 5E***01 | Filter Group-Oil | 1 |
7e8442 Fumes Disposal Gp
| 7E***42 | Fumes Disposal Group | 1 |
7w8420 Fumes Disposal Gp
| 7W***20 | Fumes Disposal Group; Fumes Disposal Group | 1 |
9y0080 Gauge Gp-Oil Level (Dipstick)
| 9Y***80 | Gauge Group-Oil Level (Dipstick) | 1 |
7c5873 Lines Gp-Engine Oil
| 7C***73 | Lines Group-Engine Oil; Engine Oil Lines Group | 1 |
7w8599 Pump Gp-Engine Oil
| 7W***99 | Pump Group-Engine Oil | 1 |
4w4951 Pump Gp-Engine Oil
| 4W***51 | Pump Group-Engine Oil | 1 |
Propel
5e8345 Control Gp
| 5E***45 | Control Group | 1 |
7r9040 Control Gp
| 7R***40 | Control Group | 1 |
1g9025 Control Gp-Hydraulic
| 1G***25 | Control Group-Hydraulic | 1 |
869555 Control Gp-Transmission
| 08***55 | Control Group-Transmission | 1 |
1g9081 Control Gp-Transmission
| 1G***81 | Control Group-Transmission | 1 |
6r2264 Lines Gp
| 6R***64 | Lines Group-Hydraulic | 1 |
5e8321 Propel Gp
| 5E***21 | Propel Group | 1 |
7r9037 Propel Gp
| 7R***37 | Propel Group | 1 |
7x9279 Pump Gp-Variable Displacement-Part 1 Of 2
| 7X***79 | Pump Group-Hydraulic | 1 |
7x9279 Pump Gp-Variable Displacement-Part 2 Of 2
| 7X***79 | Pump Group-Hydraulic | 1 |
6r4226 Pump-Hydraulic-Part 2 Of 2
| 6R***26 | Pump Group-Hydraulic | 1 |
6r4226 Pump-Hydraulic-Part 1 Of 2
| 6R***26 | Pump Group-Hydraulic | 1 |
1g3772 Turbine Gp
| 1G***72 | Turbine Group-Heater | 1 |
5e4844 Valve As-Propel-Cooling
| 5E***44 | Valve As-Propel-Cooling | 1 |
6r0403 Valve Gp-Cooling
| 6R***03 | Valve Group | 1 |
869556 Valve Gp-Pressure
| 08***56 | Valve Group | 1 |
1g9080 Valve Gp-Pressure Control
| 1G***80 | Valve Group-Pressure Control | 1 |
Service Equipment And Supplies
O-Ring Chart
| 7R***00 | Chart-O-Ring | 1 |
6r2384 Film Gp-Spanish
| 6R***84 | Film Group | 1 |
7r9832 Film Gp-French
| 7R***32 | Film Group | 1 |
7r0313 Paint & Decal Gp
| 7R***13 | Paint & Film Group; Paint & Decal Gp | 1 |
Starting And Electrical System
9y8187 Alternator Gp
| 9Y***87 | Alternator Group-Charging | 1 |
9w3043 Alternator Gp*R
| 9W***43 | Alternator Group-Charging; (24-Volt, 52-Ampere) | 1 |
5e8528 Console As-Operator
| 5E***28 | Console As-Operator | 1 |
6r0823 Console Gp-Control Panel
| 6R***23 | Console Group | 1 |
871503 Console Gp-Control Panel
| 08***03 | Console Group | 1 |
6r2219 Electrical Gp-Part 1 Of 3
| 6R***19 | Electrical Group | 1 |
7r0306 Electrical Gp-Part 2 Of 3
| 7R***06 | Electrical Group | 1 |
7r0306 Electrical Gp-Part 3 Of 3
| 7R***06 | Electrical Group | 1 |
6r2219 Electrical Gp-Part 3 Of 3
| 6R***19 | Electrical Group | 1 |
7r0306 Electrical Gp-Part 1 Of 3
| 7R***06 | Electrical Group | 1 |
6r2219 Electrical Gp-Part 2 Of 3
| 6R***19 | Electrical Group | 1 |
7x3597 Feet Per Minute Gp
| 7X***97 | Feet Per Minute Group | 1 |
7r7903 Horn Gp-Warning
| 7R***03 | Horn Group-Warning | 1 |
6r2204 Instrument Gp-Gauge
| 6R***04 | Instrument Group | 1 |
813432 Lamp Gp
| 08***32 | Lamp Group | 1 |
813688 Lamp Gp
| 08***88 | Lamp Group; -Front | 1 |
870811 Light Gp-Parking
| 08***11 | Lighting Group | 1 |
7r9043 Light Gp-Work
| 08***76 | Screw | 8 |
| 08***88 | Lamp Group; -Front | 1 |
| 2H***90 | Lockwasher | 1 |
871268 Lighting Gp-Parking
| 08***68 | Lighting Group-Parking | 1 |
7x3596 Lighting Gp-Road
| 7X***96 | Lighting Group-Roading; Lighting Gp-Road | 1 |
7x3594 Light Gp-Work
| 7X***94 | Lighting Group-Working | 1 |
7x3594 Light Gp-Working
| 7X***94 | Lighting Group-Working | 1 |
6r2368 Light Gp-Working
| 6R***68 | Lighting Group-Working | 1 |
7r9042 Option Gp-Feet Per Minute
| 7R***42 | Option Group-Fpm | 1 |
5e8526 Panel As-Instrument
| 5E***26 | Panel As-Instrument | 1 |
9x5524 Solenoid As
| 9X***24 | Solenoid As | 1 |
7c4028 Solenoid Gp-Shut-Off-24 Volt
| 7C***28 | Solenoid Group-Shutoff | 1 |
7c9458 Solenoid Gp-Shut-Off
| 7C***58 | Solenoid Group-Shutoff; -Fuel | 1 |
6r2355 Speedometer Gp
| 6R***55 | Speedometer Group | 1 |
9w3748 Starting Motor Gp-Electric
| 9W***48 | Starting Motor Group-Electric | 1 |
7c5731 Starting Motor Gp-Electric
| 7C***31 | Starting Motor Group-Electric; Starting Motor Group (Electric) (24v) | 1 |
3e5381 Starting Motor Gp-Electric
| 3E***81 | Starting Motor Group-Electric | 1 |
9g7641 Switch Gp-Start
| 9G***41 | Switch Group-Start; -Engine, Key-Vims Service | 1 |
870693 Warning Gp-Back-Up
| 08***93 | Warning Group-Backup | 1 |
6r2205 Wiring Gp
| 6R***05 | Wiring Group | 1 |
Steering
5e4838 Block Gp-Adapter
| 5E***38 | Block Group-Adapter | 1 |
7x9541 Cylinder Gp-Steering-(00-00a)
| 7X***41 | Cylinder Group-Steering | 1 |
7x9387 Pump Gp-Steering
| 7X***87 | Pump Group-Steering | 1 |
5e4834 Column Gp-Steering
| 5E***34 | Steering Column Group | 1 |
5e8318 Steering Gp
| 5E***18 | Steering Group | 1 |
7r9036 Steering Gp
| 7R***36 | Steering Group | 1 |
7r6486 Steering Unit Gp
| 7R***86 | Steering Group | 1 |
7x9879 Valve Gp-Priority
| 7X***79 | Valve Group-Priority | 1 |
Vibratory
5e8346 Filter As-Hydraulic Oil
| 5E***46 | Filter As-Hydraulic | 1 |
1g8239 Pump Gp-Vibratory-Part 1 Of 2
| 1G***39 | Pump Group-Vibratory | 1 |
1g8239 Pump Gp-Vibratory-Part 2 Of 2
| 1G***39 | Pump Group-Vibratory | 1 |
7x9278 Pump Gp-Vibratory-Part 2 Of 2*R
| 7X***78 | Pump Group-Vibratory | 1 |
7x9278 Pump Gp-Vibratory-Part 1 Of 2*R
| 7X***78 | Pump Group-Vibratory | 1 |
7x9690 Valve Gp-Drum Selector
| 7X***90 | Valve Group | 1 |
5e9871 Valve Gp-Control-Vibratory
| 5E***71 | Valve Group-Control | 1 |
7x9689 Valve Gp-Control
| 7X***89 | Valve Group-Control | 1 |
7x9171 Valve Gp-Control-Vibratory
| 7X***71 | Valve Group-Control | 1 |
5e4850 Cooling Valve-Vibratory
| 5E***50 | Valve-Cooling | 1 |
5e8326 Vibratory Gp-Part 1 Of 2
| 5E***26 | Vibratory Group | 1 |
7r9038 Vibratory Gp-Part 1 Of 2
| 7R***38 | Vibratory Group | 1 |
5e8326 Vibratory Gp-Part 2 Of 2
| 5E***26 | Vibratory Group | 1 |
7r9038 Vibratory Gp-Part 2 Of 2
| 7R***38 | Vibratory Group | 1 |
Water Spray System
6r1585 Mat Gp-Water
| 6R***85 | Mat Group-Water | 1 |
6r2383 Pump Gp-Water
| 6R***83 | Pump Group-Water Spray | 1 |
6r3216 Spray Gp-Water
| 6R***16 | Spray Group-Water | 1 |
5e8331 Spray Gp-Water
| 5E***31 | Spray Group-Water | 1 |
7r9039 Spray Gp-Water
| 7R***39 | Spray Group-Water | 1 |
CB-434 serial number reference
The PIN plate on a CB-434 is a riveted metal tag on the machine frame, usually near the articulation joint or on the frame rail below the operator platform. The plate shows the full Product Identification Number; the leading 3-character alphanumeric prefix (e.g. 4DN or CNH) identifies the model/build series, and the digits following it are the sequential unit number within that series. Always read the full plate rather than assuming from drum size or paint scheme, since base/B/C/D variants can look similar.
| Prefix | Identifies | Notes |
|---|---|---|
| 3TF | CB-434 (original/base series, tandem vibratory asphalt compactor) | First-generation CB-434, produced roughly 1990-1996. Powered by the Cat 3114T turbocharged engine, not the later 3054. Plant/region not documented in available sources - confirm with dealer. |
| 6AL | CB-434B tandem vibratory asphalt compactor | CB-434B production block. Powered by the Cat 3054 diesel. Split in build years versus the 7YN block is not documented - confirm with dealer. |
| 7YN | CB-434B tandem vibratory asphalt compactor | A second CB-434B serial block, same model and engine arrangement as 6AL. Powered by the Cat 3054 diesel. Whether 7YN reflects a running change, a later build band, or a regional block versus 6AL is not documented - confirm with dealer. |
| 4DN | CB-434C tandem vibratory asphalt compactor | Covers CB-434C production, roughly 1996-2006. Powered by the Cat 3054 diesel. Plant/region not documented in available sources - confirm with dealer. |
| CNH | CB-434D / CB-434DXW tandem vibratory asphalt compactor | Covers CB-434D and the extended-wheelbase CB-434DXW variant. CB-434D production runs roughly 2004-2011; DXW build-year span is less consistently documented across sources and should be treated as approximate - confirm with dealer. Powered by the Cat 3054C diesel. The D-series adds automatic speed control with an impact-spacing indicator, a revised operator station, vertical yoke frame, 50/50 articulation, five amplitude settings, and an optional dual-amplitude vibratory system (high/low). Plant/region not documented in available sources - confirm with dealer. |
Frequently asked questions
What engine does the Caterpillar CB-434 use?
More than one Cat engine family, depending on series. The original base CB-434 (1990-96) is tied by parts-catalog records to a turbocharged Cat 3114T rated 60 kW (80 hp) at 2200 rpm. The following CB-434B/C generation runs a naturally aspirated Cat 3054, in the high-70s to low-80s hp (mid-50s to low-60s kW) class; the CB-434D moved to a turbocharged 3054C rated 62 kW (83 hp) at 2200 rpm. This varies by series and build - confirm the exact engine against the plate.
What is the operating weight of the Caterpillar CB-434?
Roughly 6.07 to 7.4 metric tons (about 13,400 to 16,280 lb), depending on series and drum width. Earlier B/C-series units sit at the lighter end; the D-series, with its bigger fuel tank and updated frame, runs heavier. Treat any single figure as approximate and check the specific configuration.
What replaced the Caterpillar CB-434?
Cat retired the CB-434 nameplate and folded this weight class into its metric-ton-named utility compactor range - first as the CB34B, and today as the CB3.7 and CB4.0 tandem rollers. No current Cat model carries the CB-434 badge.
What CB-434 owners discuss
What engine is actually in the CB-434, and does it change by series?
Base CB-434 (1990-96) production is tied by parts-catalog and engine-classification records to the turbocharged Cat 3114T, rated around 60 kW (80 hp) at 2,200 rpm. The following CB-434B/C generation is tied to the naturally aspirated Cat 3054 four-cylinder diesel. Confirm off the engine plate, since fitment varies by serial prefix and generation. The 3054 family shares core architecture with Perkins' 1000-series design, which owners run into when sourcing a replacement long block: remanufactured units are easier to find than good used take-outs.
What wear items show up most on a CB-434 that has seen real service?
Drum isolators, the rubber mounts isolating the vibrating drum from the frame, are the top wear item. Cracked or hardened isolators pass vibration straight into the frame and operator station, which loosens gauges, switches, and wiring connections over time. The articulation joint (center-hinge pins and bushings) is the other recurring item; clunking or play when reversing direction means the joint is due for bushings, and it is an expensive repair if left too long. Drum bearings themselves hold up well when isolators are sound and exciter oil is kept to level. Uneven or heavy vibration on one drum is usually traced to isolators or exciter oil, not bearing failure.
Any known quirks with the propel or vibratory hydraulics?
The propel and vibratory circuits are considered field-proven and low-drama when fluid stays clean and isolators are in spec. Weak or lopsided vibration is more commonly a worn isolator, low exciter oil, or loose mounting hardware than a bad pump or motor. Hydraulic hose and pump weeping shows up more on higher-hour, harder-worked machines and is treated as a sign of deferred maintenance rather than a design flaw in the circuit.
What do owners say about the 3114T/3054/3054C engine's reliability?
Regarded as a durable small industrial diesel, but two failure modes recur: the injection pump's front shaft seal weeping fuel or oil (sometimes showing up as a rising oil level), and injection pump timing drift, which shows up as rough running or white/blue smoke rather than a hard fault code. Overheating is the item to jump on immediately; low coolant, a clogged radiator, or a tired water pump can escalate to scored cylinder walls or a thrown rod if run through instead of shut down. None of this is unique to the roller application, it tracks the same reputation the 3114T/3054/3054C carries across the smaller Cat machines that share the engine. Have your dealer verify injection pump timing and cooling system condition before returning a hot-running machine to service.
How does the water spray system on the CB-434 hold up?
Later CB-434D units run two water pumps with only one active at a time, alternating by direction of travel, which owners say roughly doubles pump service life versus a single always-on pump. Triple-stage filtration exists specifically to keep spray nozzles clear. The recurring complaint on any tandem roller's water system is a clogged nozzle or filter basket from unfiltered fill water, not pump failure. Clean fill water and a rinsed filter basket keep the system trouble-free.
What electrical issues come up on this machine?
This generation runs a mostly mechanical fuel system rather than full electronic engine controls, so sensor-related complaints are lighter than on later Tier 4 machines. Recurring electrical gripes are conventional: battery and charging system faults, corroded or loose terminals, and gauge or switch failures in the operator console. Owners tie console electrical flakiness back to vibration fatigue from worn drum isolators as often as to a wiring defect itself. A no-crank or no-start gets worked the same way as any diesel of this era: battery and connections first, starter and relays second, fuel system third.
What should I check before buying a used CB-434?
Confirm the exact model suffix (CB-434 vs B/C/D) and engine aspiration off the serial and engine plates, since specs and parts interchange are not identical across the run. Walk every drum isolator for cracking or hardened rubber, and rock the machine at the articulation joint feeling for play or clunk; both are the most expensive items to discover after purchase. Run the vibratory system on each drum side by side, it should engage smoothly and feel even; unevenness usually traces to isolators or exciter oil rather than the drum itself. Check hydraulic hoses, pump, and motor housings for weeping, and clean the articulation area beforehand so leaks are visible rather than masked in grime. On hours, rough benchmarks used for this class of roller run under about 3,000 hours as low use, 3,000-6,000 as mid-life, and past roughly 7,000 hours as due for a hydraulic or engine overhaul soon; treat this loosely and weigh it against service records rather than the meter alone, since it varies by duty cycle and configuration. Have your dealer verify articulation joint and hydraulic pump/motor condition before committing the machine to production work.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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