Caterpillarwork toolrake-power box

Caterpillar PR184

Maintenance schedule, common problems & OEM parts breakdown

Search live PR184 parts

The Cat PR184 is a passive, non-powered work-tool attachment in Cat's Power Box Rake lineup, sized for skid-steer, compact track, and multi-terrain loaders as well as compact wheel loaders. It carries no engine, ECM, cooling system, or undercarriage of its own; it draws hydraulic flow of 57-86 L/min at 230 bar (15-23 gpm at 3,336 psi) from the host carrier through quick-tach couplers to spin a carbide-tooth, chain-driven rotor housed in an oil-bath chain case. Raking width runs 2,134 mm (84 in), with an overall width of 2,362 mm (93 in), length of 1,626 mm (64 in), and height of 847 mm (33.3 in). Operating weight spans 465 kg (1,025 lb) in the manual-angle configuration to 476 kg (1,049 lb) in the hydraulic-angle configuration, with side-to-side angle adjustment of up to 20 degrees each direction. The PR184 sits in the middle of a three-size family alongside the smaller PR172 (72 in class) and larger PR190 (90 in class), sharing the same rotor and chain-case design and a carrier-compatibility band spanning 216B3 through 299D2 XHP skid steers and 906K/M-908K/M compact wheel loaders.

The manual-angle and hydraulic-angle PR184 variants share the same rotor, chain case, and frame, differing only in how angle is set: manual units use a pin-adjusted linkage set from outside the cab, while hydraulic units add an angle cylinder plumbed to the carrier's auxiliary circuit for in-cab adjustment on the move. Because the attachment has no serialized generational succession, with PR172, PR184, and PR190 forming a size family rather than a lineage of replacements, used-market value centers on carrier compatibility and wear-part condition rather than model-year currency. Parts demand runs heaviest on carbide rake teeth, chain-drive components, and quick-tach wear pads, since these see the most abrasive contact with soil, roots, and debris. A PR184 with a sound chain case and rotor bearings but worn teeth is a straightforward, low-cost rebuild, which keeps resale and parts-support activity strong across the used compact-loader attachment market.

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 PR184 specifications

Engine

Power sourceNone onboard. PR184 is a passive, non-engine work tool driven off the carrier machine's own hydraulic system via an auxiliary hydraulic motor. No ECM, displacement, cylinder count, or emissions tier applies.

Weights

Operating weight, manual-angle configuration465 kg (1,025.1 lb)
Operating weight, hydraulic-angle configuration476 kg (1,049.4 lb)
Shipping weightNot separately published; treat as equal to operating weight above (attachment ships assembled).
Ground pressureNot applicable — work tool has no ground-bearing undercarriage of its own.

Dimensions

Roller width2,134 mm (84 in)
Overall width2,362 mm (93 in)
Overall length1,626 mm (64 in)
Overall height847 mm (33.3 in)
Raking width at maximum angle2,007 mm (79 in)
Maximum angle, right or left of center20 degrees
Family sizing notePR184 sits between the narrower PR172 (roller 1,829 mm / 72 in, overall 2,057 mm / 81 in) and the wider PR190 (roller 2,286 mm / 90 in, overall 2,515 mm / 99 in). Each sibling has its own distinct width — figures do not interchange.

Performance

Angling capabilityManual-angle or hydraulic-angle version; both offer up to 20 degrees of angle right or left of center for windrowing collected debris. Hydraulic-angle version lets the operator adjust angle from the cab; manual-angle version is set by hand.
Optimal hydraulic flow (carrier-supplied)57-86 L/min (15-23 gpm)
Optimal hydraulic pressure (carrier-supplied)230 bar (3,336 psi)
Depth/finish controlDual independently adjustable gauge wheels for depth control; two-position winged endplates for close raking against edges/obstacles.
Carrier compatibilityMounts to skid steer and multi-terrain loaders via universal quick-tach, spanning compact through large-frame carrier classes (roughly Cat 226-299 skid steer/multi-terrain series and 906-908 compact wheel loaders).
Travel speed / drawbar / lift / digNot applicable — this is a towed/carried rotary rake attachment, not a self-propelled machine; no independent travel speed or drawbar rating is published.

Service capacities (summary)

Fuel tankNot applicable — no onboard engine.
Hydraulic systemNo dedicated onboard reservoir; the rotor motor runs off the host carrier's hydraulic circuit at the flow/pressure above.
Engine oilNot applicable.
Cooling systemNot applicable.

Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.

PR184 fluids & capacities

SystemCapacityRecommended fluid
Engine crankcase (with filter)not applicablePR184 is a passive skid-steer/multi-terrain-loader work tool with no onboard engine. All drive power comes from the carrier machine's hydraulic system, so there is no engine crankcase, filter, or oil spec for the attachment itself.
Cooling systemnot applicableNo engine, radiator, or coolant circuit on this work tool. Cooling-system service applies to the host carrier, not the rake attachment.
Fuel tanknot applicableNo fuel system. The rake has no combustion engine.
Hydraulic system / tank (attachment)not applicable — draws from carrier's hydraulic reservoirThe rotor drive motor and (on hydraulic-angle units) the angle cylinder run off the host skid-steer or multi-terrain loader's own hydraulic circuit through the quick-tach couplers. The attachment carries no dedicated hydraulic reservoir, so fluid type and capacity follow the carrier machine's OMM, not a PR184-specific spec.
Rotor chain drive casenot documented in available Caterpillar literature for this exact modelCat markets the Power Box Rake line (including PR184) as using an enclosed, oil-bathed chain drive case to protect the rotor chain from debris and reduce chain stretch. Caterpillar does not publish an exact case-fill volume or named oil spec for this attachment in available dealer or parts documentation. Field service guidance for this chain case has varied between a straight gear/engine oil fill and a light NLGI 0 grease pack depending on shop practice — treat as unconfirmed and verify fill type and quantity with a Cat dealer or the OMM shipped with the specific unit before servicing.
Grease points (pivot pins, angle mechanism, gauge wheel bearings)lubricate at scheduled service intervals per OMM decal — no bulk capacity specifiedStandard Cat multipurpose work-tool grease, NLGI 2 grade, consistent with the grease spec used across other Cat skid-steer/MTL work tools. No climate-split viscosity guidance is published for this attachment; general-purpose grease covers the full operating temperature range Cat lists for the machine.

Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.

Caterpillar PR184 maintenance schedule

Service intervalTasks
Every 10 h
  • Inspect the quick-tach mounting plate, pins, and wedges for full engagement and visible wear before use.
  • Walk down all hydraulic hoses and quick-disconnect couplers for leaks, cracking, or loose fittings.
  • Check carbide rake teeth for chipping, looseness, or missing inserts before engaging the ground.
  • Visually inspect the chain-case housing for oil weep, cracks, or impact damage.
  • Clear wrapped debris such as roots, wire, or sod from the rotor ends and chain-case vents.
Every 50 h
  • Check chain-case oil level at the sight or fill plug and top off with the specified gear lubricant.
  • Grease the pivot pins, angle-adjustment linkage, and gauge-wheel mounts.
  • Rotate or index carbide teeth showing one-sided wear to extend service life.
  • Torque-check mounting bolts on the rotor frame, skid shoes, and gauge wheels.
Every 250 h
  • Inspect chain-case oil condition for metal fines or moisture contamination and replace if discolored.
  • Inspect drive-chain tension and sprocket wear inside the case.
  • Check the hydraulic motor shaft seal for weeping and confirm mounting bolt torque.
  • Inspect quick-tach wear pads and pins for clearance; shim or replace pads worn beyond spec.
  • On hydraulic-angle units, confirm the angle-cylinder rod and seals show no scoring or leakage.
Every 500 h
  • Perform a full chain-case oil change regardless of visual condition.
  • Remove access covers and inspect chain, sprockets, and rotor bearings for wear or backlash.
  • Replace carbide teeth that have worn past the insert into the tooth holder body.
  • Inspect and repack rotor shaft bearings and seals at accessible grease points.
  • Check the hydraulic motor coupling or spline for wear and confirm case-drain flow is within spec.
Every 1,000 h
  • Open the chain case fully to inspect chain elongation and replace if beyond service limit.
  • Inspect rotor shaft, bearings, and seals, replacing worn bearings before they score the shaft.
  • Inspect angle-cylinder mounting pins and bushings for play and replace as needed.
  • Rebuild or replace the hydraulic motor if output flow or speed has degraded from spec.
  • Inspect frame and skid-shoe wear plates, replacing any worn thin.
Every 2,000 h
  • Perform a full teardown inspection of the chain case, rotor, and drive-chain assembly.
  • Replace all wear items together, including teeth, wear pads, skid shoes, and seals, to reset service life evenly.
  • Inspect and, on hydraulic-angle units, rebuild the angle-adjustment cylinder with new seals.
  • Re-torque and inspect the entire frame structure and quick-tach wedge assembly for fatigue cracks.

Servicing the PR184 beyond the schedule

Predictive Maintenance & Fluid Analysis

The PR184 carries no engine oil to sample; its only lubricated system is the sealed chain-case gear oil bathing the carbide-tooth rotor chain. Pull a sample at scheduled oil changes and watch for metallic fines (chain or sprocket wear) or milky discoloration (seal leakage letting in moisture). Track carbide tooth wear rate against hours raked in rocky or root-bound soil, since abrasive ground conditions accelerate tooth consumption far faster than the interval schedule assumes. Log hydraulic motor case-drain flow to catch internal wear before it becomes a stall.

Corrective & Common Repairs

Most PR184 downtime traces to the drive chain and rotor, not hydraulics. A slipping or jumping chain usually means stretched links or worn sprockets inside the case; replace as a set rather than one component. Chipped or sheared carbide teeth are the most common field repair; replace individually rather than waiting for a full rotor rebuild. Hydraulic motor leaks at the shaft seal or coupler O-rings are the next most frequent fix. Bent tines or a cracked skid shoe point to gouging on buried rock and warrant a frame-alignment check.

Overhaul & Rebuild Points

A full PR184 overhaul centers on the chain case: pull the rotor, replace the drive chain and sprockets together, and inspect the rotor shaft and bearings for scoring before reseating seals. Rebuild the hydraulic motor if flow output has dropped, replacing the shaft seal and checking spline wear. On hydraulic-angle units, the angle cylinder is the other major wear point; reseal it and check pin bushings for play. Replace all carbide teeth and quick-tach wear pads together at overhaul so wear resets evenly across the tool.

Seasonal & Environment Servicing

Wet, root-heavy, or freeze-thaw ground pushes moisture and debris into the PR184's chain case faster than dry-season use, so check the oil for water contamination more often through wet months. Pack and clear the case vents and rotor ends of mud and wrapped material before storage to stop corrosion setting in over winter. Grease all pivot pins and the quick-tach wedge before seasonal layup, and cap hydraulic couplers to keep grit and moisture out of the carrier's circuit while the attachment sits idle.

PR184 attachments & work tools

Work tool identity

PR184 is a Cat Power Box Rake, a rotary landscape/seedbed-prep attachment, not a host machine. It is built for skid steer loaders, multi-terrain loaders, compact track loaders and compact wheel loaders.

Size-class family

PR184 is the mid-size member of a three-model Power Box Rake line: PR172 (1829 mm / 72 in roller) and PR190 (2286 mm / 90 in roller) share the same design and coupler. PR184's roller width is 2134 mm (84 in), with 2362 mm (93 in) overall width and a raking width at max angle of 2007 mm (79 in).

Coupler / mounting system

Mounts via Cat's standard quick-coupler attachment plate, a rugged opposing-edge wedge design paired with a heavy-duty frame, pivot plate and attachment plate. No adapter is needed on carriers already fitted with a Cat universal skid steer style quick-tach.

Carrier compatibility

Factory compatibility spans small to large frame Cat loaders, from 216B3 up through 299D2 XHP skid steer/compact track/multi-terrain loaders, plus 906K-908K and 906M-908M compact wheel loaders. Availability of a given carrier pairing varies by region, so confirm current fit with a dealer.

Hydraulic requirement

Runs on the carrier's standard-flow auxiliary hydraulic circuit, rated 57-86 L/min (15-23 gpm) at 230 bar (3,340 psi), to drive the chain-driven cutter bar/rotor and, on hydraulic-angle units, the angle cylinder. Cat XT-3 ES hose with O-ring face seal couplings and quick disconnects is used for fast tool changes.

Angle configuration options

Offered as manual-angle or hydraulic-angle, both adjustable up to 20 degrees left or right of center. Hydraulic-angle units let the operator swing the rake from the cab via the machine joystick; manual-angle units can be field-converted to hydraulic angling.

Rotor and teeth

Uses a chain-driven cutter bar with pure carbide, blunt-shaped teeth turned by high-torque hydraulic motors. The teeth dimple the subsurface for a fractured seedbed rather than cutting like a tiller blade.

Guarding and operator options

Two-position winged endplates give a box-blade carrying effect front and reverse and can be set to hug walls or foundations. Dual independently adjustable gauge wheels set skim-pass depth or drainage grade, height-adjustable front wheels allow offset-grade cutting, bolt-on deflectors manage material throw for reprocessing, and a deep skid-resistant step aids cab entry/exit.

Weight class

Hydraulic-angle PR184 weighs about 476 kg (1,050 lb); the manual-angle version is lighter at roughly 465 kg (1,026 lb). Sibling PR172 (manual ~408 kg/900 lb, hydraulic ~420 kg/925 lb) and PR190 (hydraulic ~599 kg/1,320 lb, manual not offered) bracket this weight class.

All PR184 assemblies by section

Every catalogued assembly group for the Caterpillar PR184. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Frame And Body
276-4428 Deflector Gp-Debris
03***55Locknut; (5/16-18-Thd)(Marked X)24
1D***72Bolt-Carriage; (1/2-13x5.5-In)24
27***28Deflector Group-Debris1
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276-4408 Deflector Gp-Debris
03***55Locknut; (5/16-18-Thd)(Marked X)16
1D***72Bolt-Carriage; (1/2-13x5.5-In)16
27***08Deflector Group-Debris1
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276-4418 Deflector Gp-Debris
03***55Locknut; (5/16-18-Thd)(Marked X)24
1D***72Bolt-Carriage; (1/2-13x5.5-In)24
27***18Deflector Group-Debris1
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277-8211 Frame Gp-Landscape Rake
02***87Fitting-Grease; (Universal Joint)4
0T***84Bolt 19 mm(.75 In.) Long3
27***70Bushing1
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276-4410 Frame Gp-Landscape Rake
02***87Fitting-Grease; (Universal Joint)4
0T***84Bolt 19 mm(.75 In.) Long3
27***10Frame Group-Landscape Rake1
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276-4406 Frame Gp-Landscape Rake
15***70Lockwasher1
27***06Frame Group-Landscape Rake1
27***08Deflector Group-Debris1
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276-4416 Frame Gp-Landscape Rake
15***70Lockwasher1
27***09Wheel Group-Landscape Rake2
27***16Frame Group-Landscape Rake1
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276-4426 Frame Gp-Landscape Rake
15***70Lockwasher2
27***26Frame Group-Landscape Rake1
27***28Deflector Group-Debris1
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277-8221 Frame Gp-Landscape Rake
02***87Fitting-Grease; (Universal Joint)4
0T***84Bolt 19 mm(.75 In.) Long3
27***70Bushing1
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276-4430 Frame Gp-Landscape Rake
02***87Fitting-Grease; (Universal Joint)4
0T***84Bolt 19 mm(.75 In.) Long3
27***30Frame Group-Landscape Rake1
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276-4409 Wheel Gp-Landscape Rake
0S***79Bolt 5.08 cm(2 In.) Long1
1B***39Nut Connecting Link1
1K***56Nut-Slotted1
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276-4429 Wheel Gp-Landscape Rake
02***87Fitting-Grease; (Universal Joint)1
0S***79Bolt 5.08 cm(2 In.) Long1
27***29Wheel Group-Landscape Rake1
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Hydraulic System
277-8217 Lines Gp-Connecting
14***15Connector As2
14***41Connector Group2
15***94Coupler As-Quick Disconnect; (Female)(Quick Disconnect)1
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277-8212 Lines Gp-Connecting
14***15Connector As2
14***41Connector Group2
15***94Coupler As-Quick Disconnect; (Female)(Quick Disconnect)1
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277-8222 Lines Gp-Connecting
13***38Connector1
14***15Connector As2
15***94Coupler As-Quick Disconnect; (Female)(Quick Disconnect)1
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276-4420 Lines Gp-Cylinder & Manifold
13***38Connector1
14***15Connector As2
14***41Connector Group2
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276-4411 Lines Gp-Cylinder & Manifold
13***38Connector1
14***15Connector As2
14***41Connector Group2
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276-4431 Lines Gp-Cylinder & Manifold
13***38Connector1
14***15Connector As2
14***39Tee As2
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Service Equipment And Supplies
277-8223 Plate & Film Gp
22***45Film-Warning; (Crush Hazard, Stay Back)2
22***30Film-Warning; (Flying Debris, Stay Back, U.S.)1
22***42Film-Warning; (Crush Hazard, Stay Back, U.S.)2
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277-8213 Plate & Film Gp
22***45Film-Warning; (Crush Hazard, Stay Back)2
22***30Film-Warning; (Flying Debris, Stay Back, U.S.)1
22***42Film-Warning; (Crush Hazard, Stay Back, U.S.)2
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277-8216 Plate & Film Gp
22***45Film-Warning; (Crush Hazard, Stay Back)2
22***30Film-Warning; (Flying Debris, Stay Back, U.S.)1
22***42Film-Warning; (Crush Hazard, Stay Back, U.S.)2
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276-4433 Plate & Film Gp
22***45Film-Warning; (Crush Hazard, Stay Back)2
22***30Film-Warning; (Flying Debris, Stay Back, U.S.)1
22***42Film-Warning; (Crush Hazard, Stay Back, U.S.)2
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276-4419 Plate & Film Gp
22***45Film-Warning; (Crush Hazard, Stay Back)2
22***30Film-Warning; (Flying Debris, Stay Back, U.S.)1
22***42Film-Warning; (Crush Hazard, Stay Back, U.S.)2
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276-4413 Plate & Film Gp
22***45Film-Warning; (Crush Hazard, Stay Back)2
22***30Film-Warning; (Flying Debris, Stay Back, U.S.)1
22***42Film-Warning; (Crush Hazard, Stay Back, U.S.)2
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Work Tool Arrangement
277-8215 Landscape Power Rake Ar
27***16Frame Group-Landscape Rake1
27***17Drive Group-Landscape Rake1
27***15Landscape Power Rake Ar1
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276-4415 Landscape Power Rake Ar
22***15Harness As-Work Tool; (Connecting)1
27***12Wiring Group-Work Tool1
27***15Landscape Power Rake Ar1
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276-4425 Landscape Power Rake Ar
22***15Harness As-Work Tool; (Connecting)1
27***12Wiring Group-Work Tool1
27***25Landscape Power Rake Ar1
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276-4405 Landscape Power Rake Ar
22***15Harness As-Work Tool; (Connecting)0
27***05Landscape Power Rake Ar1
27***06Frame Group-Landscape Rake1
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277-8220 Landscape Power Rake Ar
27***26Frame Group-Landscape Rake1
27***27Drive Group-Landscape Rake1
27***20Landscape Power Rake Ar1
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277-8210 Landscape Power Rake Ar
27***06Frame Group-Landscape Rake1
27***07Drive Group-Landscape Rake1
27***10Landscape Power Rake Ar1
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Work Tools
276-4417 Drive Gp-Landscape Rake
03***55Locknut; (5/16-18-Thd)(Marked X)2
23***89Nut-Flange; (1/2-13-Thd)4
27***17Drive Group-Landscape Rake1
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276-4407 Drive Gp-Landscape Rake
03***55Locknut; (5/16-18-Thd)(Marked X)2
23***89Nut-Flange; (1/2-13-Thd)4
27***07Drive Group-Landscape Rake1
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276-4427 Drive Gp-Landscape Rake
03***55Locknut; (5/16-18-Thd)(Marked X)2
1K***72Locknut Horn To Guard4
26***15Motor Group-Gerotor1
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PR184 serial number reference

The PIN plate for the PR184 is mounted on the rake frame itself (near the mounting/quick-coupler plate at the top of the frame, not on the host carrier). Read the first three letters as the prefix, then the sequential unit number that follows (for example KPA00001), and match that prefix against the parts catalog range for the exact component fitment - the PR184 shares its parts book with the narrower PR172 and wider PR190 siblings, so the prefix is what separates them.

PrefixIdentifies
KPAPR184 Power Box Rake, 84 in (213 cm) width
PRWPR184 Power Box Rake, 84 in (213 cm) width

Frequently asked questions

What powers the Cat PR184 Power Box Rake?

The PR184 has no engine or ECM of its own. It is a fully hydraulic-driven attachment powered entirely by the host skid-steer, compact track, multi-terrain loader, or compact wheel loader's auxiliary hydraulic circuit, which supplies 57-86 L/min at 230 bar (15-23 gpm at 3,336 psi) through quick-tach couplers to spin the chain-driven rotor.

What is the PR184's operating weight?

Operating weight runs 465 kg (1,025 lb) for the manual-angle configuration and 476 kg (1,049 lb) for the hydraulic-angle configuration, which adds the angle-adjustment cylinder and plumbing. Raking width is 2,134 mm (84 in), with an overall width of 2,362 mm (93 in).

What other sizes are in the PR184's family, and is there a successor?

The PR184 is not a generational model with a factory successor; it is the mid-size member of Cat's three-size Power Box Rake family. The smaller PR172 (72 in class) and larger PR190 (90 in class) are size-class siblings built on the same rotor and chain-case design, each with its own serial-prefix range and carrier-compatibility band.

What PR184 owners discuss

Does the PR184 rotor drivetrain need its own maintenance separate from the carrier's hydraulics?
Yes. The rotor runs off a chain-and-sprocket case (drive arrangement can vary by generation) with its own oil sump, isolated from the host machine's hydraulic system. Owners check level at a fill/level plug with the rake sitting level, and expect to find oil at the checkpoint. A recurring complaint is milky, water-contaminated oil after wash-downs or wet storage; the fix is draining, refilling with the dealer-specified gear oil, and tracking down the seal letting water in. Skipping this service is the fastest way to chew up chain and sprockets that otherwise outlast the rest of the attachment.
What wear pattern do owners see on the carbide teeth, and when do they replace them?
Carbide teeth wear fastest at the rotor ends, where they take the brunt of edge-cutting near curbs and foundations, with the carbide face thinning well before the steel tooth base gives out. Community consensus is to swap teeth once wear reaches roughly half the original carbide face rather than running them to the base, since welding new teeth onto an already-worn base is harder and shorter-lived than replacing on sound steel. Expect the wear interval to swing widely by material: turf and topsoil are gentle, gravel and reclaimed asphalt chew through teeth much faster. Treat teeth as a routine consumable, not a defect.
The rake spins weakly or bogs down under load. Is that the rake or the carrier?
Forum consensus points first at hydraulic flow match, not the rake itself. This class of power box rake is speced to a flow window that varies by series and by standard-flow versus high-flow carrier circuits, and running it on a mismatched circuit shows up as poor torque or bogging in heavier material. Also check for a collapsed or undersized hose restricting flow. If flow and hoses check out but torque is still weak, that points to internal wear in the hydraulic motor (seal or bearing wear bleeding off pressure). Have your dealer verify motor condition with a flow/pressure test before replacing seals blind.
Are there recurring complaints about quick-tach fit or hydraulic connections leaking?
Yes, and this shows up across quick-tach work tools generally, not just this rake. The common complaint is play developing at the coupler-to-attachment interface over time, traced to a bent mounting-plate lip or pin holes that have worn oval, which shows up as rattle or side-to-side misalignment. On the hydraulic side, owners report seepage at the quick-connect faces from grit or worn o-rings, and occasionally a coupler that resists release because residual pressure hasn't been relieved. Routine greasing of the mounting plate and pins, plus cycling the hydraulics before disconnecting, resolves most of it. Have your dealer verify coupler wear if attachment rattle persists after greasing.
How well does the angle-adjustment mechanism hold up, manual versus hydraulic?
The PR184 comes in a manual-angle version (pin-adjusted, up to about 20 degrees each side of center) and a hydraulic-angle version with an in-cab-controlled cylinder. On the manual version, the recurring complaint is adjustment pins and detents seizing or getting stiff from lack of grease, making field angle changes a fight. On the hydraulic version, owners flag the angle cylinder and its hose routing as exposed to debris thrown by the spinning rotor, with hose abrasion and rod-seal weeping being the typical failures. Most of these are a reseal job rather than a cylinder replacement. Have your dealer verify cylinder and hose condition before running the hydraulic-angle version hard in debris-heavy work.
Do owners report anything about the gauge wheels or winged endplates wearing?
The dual independently adjustable gauge wheels that set skim depth are a common wear-and-play point after heavy use, with reports of the wheel yokes and adjustment hardware loosening or the wheels themselves wearing unevenly if one side sees more load. The winged endplates that keep the box parallel during angling are usually just inspected for bent tabs or worn pivots rather than being a frequent failure point. Neither is safety-critical, but loose gauge wheels do throw off grading consistency, so owners re-torque and re-grease them as part of routine walk-arounds.
What should I check when buying a used PR184?
Buyer consensus for this class of attachment: confirm the quick-tach plate matches your carrier's coupler type and check for play or a bent lip at the mounting interface; pull the chain-case fill/level plug and check oil condition, since milky oil signals water intrusion and likely internal wear; measure remaining carbide/tooth length against a new tooth, since anything worn past roughly half its original size is a near-term expense; inspect every hose for cracking, soft spots, or abrasion from thrown debris, and check the hydraulic connect faces for leaks; and cycle the angle function (pins or cylinder) through its full range feeling for binding, plus check gauge wheel play. Since this is a purely passive work tool with no engine or onboard electronics, condition comes down entirely to the rotor drive, teeth, hoses, and mounting hardware. Have your dealer verify chain-case and hydraulic motor condition on any used unit before purchase if either shows signs of neglect.

Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.

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