Caterpillarwork toolbroom-pickup

Caterpillar BP24

Maintenance schedule, common problems & OEM parts breakdown

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Cat pickup brooms mount to skid steers, compact track loaders, wheel loaders and backhoe loaders through a hook or wedge-style quick coupler, and are driven by a gerotor hydraulic motor fed off the carrier's auxiliary hydraulic circuit rather than any engine of their own. A floating suspension holds the wafer brush core against the work surface without support wheels, sweeping debris into an integrated hopper that dumps without the operator leaving the cab. The BP24 is confirmed as a genuine, distinct Cat model through its own parts catalog under serial prefix EAK00001-UP, with sections covering frame and body, hydraulic system, work tool arrangement and work tools, but Cat has published almost no public spec-sheet data for it. By model number it sits between the BP22 and BP25 in Cat's broom-attachment lineup, sized for wheel loader and backhoe loader carriers rather than skid-steer duty. It carries no engine, no ECM and no undercarriage of its own — it is a passive hydraulic work tool that depends entirely on the host machine for power and mobility.

Cat's broom-attachment lineup splits into a compact-carrier family for skid steers and compact track loaders (BP15, BP15B, BP115C, BP118C) and a larger wheel-loader and backhoe-loader family (BP22, BP24, BP25), all sharing the same gerotor-motor drive and floating-suspension concept. Cat's current published broom Specalogs list only BP115C, BP118C, BP22 and BP25 as active products, so the BP24 reads as an older or transitional model that has since dropped out of the catalog, with no successor documented by name. Thin public documentation does not mean thin real-world use: fleets running older wheel loaders and backhoe loaders still carry BP24 units in service, and owners of those carriers need OEM-matched brush cores, gerotor motors and wear bushings long after Cat stops marketing the model, which keeps this attachment relevant in the parts and used-equipment 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 BP24 specifications

Engine

Power sourceNone. The BP24 is a passive hydraulic work tool with no engine and no ECM of its own. It runs off the carrier machine's auxiliary hydraulic circuit through a gerotor hydraulic motor that drives the brush core.

Weights

Operating weightNot published by Cat for this model. Confirm the actual figure from the identification plate or your dealer.

Dimensions

Overall dimensionsNot published for this model. Confirm from the identification plate or your dealer.

Performance

Sweeping widthNot published for the BP24 specifically. Similarly sized wheel-loader and backhoe-loader class siblings run roughly 2.2-2.5 m (86-98 in), a size-class reference only, not a confirmed BP24 figure.
Hydraulic flow and pressureNot published for the BP24 specifically. Siblings in this size class run roughly 20-150 L/min (5-40 gpm) at 150-260 bar (2,175-3,800 psi), varying by single- versus dual-motor configuration; match to the host machine's auxiliary hydraulic output and verify with your dealer.

Service capacities (summary)

Onboard fluid systemsNone. The attachment carries no fuel tank, hydraulic reservoir, engine oil, or cooling system of its own — it runs entirely off the carrier machine's own systems.

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

BP24 fluids & capacities

SystemCapacityRecommended fluid
Hydraulic drive (gerotor motor circuit)No dedicated reservoir on the broom itself; runs off the carrier's auxiliary hydraulic circuitUse the host machine's specified hydraulic oil per the carrier's own operation and maintenance manual; the broom has no onboard tank or oil to service
Gerotor motor / gearbox lubricationSealed unit, no owner-serviceable oil change interval publishedFactory-sealed; if resealed after teardown, use the gear-oil grade called out on the motor's own nameplate or service literature
Grease points (broom core bearings, pivot/mount pins, bristle-core end bearings)Per-point application, no bulk capacity givenCat Multipurpose Grease (NLGI 2 lithium-complex EP); no seasonal viscosity split documented for this attachment

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

Caterpillar BP24 maintenance schedule

Service intervalTasks
Every 50 h
  • Visually check bristle wafer condition and wear across the full width of the core
  • Inspect hydraulic hoses, fittings and quick-couplers for leaks, chafing or loose connections
  • Check hitch and mount pins for looseness or excess play against the carrier coupler
  • Clear debris from the hopper and check hinge and latch operation
  • Check water-spray nozzles for blockage and spray-bar leaks if the tool is water-tank equipped
Every 250 h
  • Grease all broom-core bearing points and pivot/mount pins per the grease chart
  • Inspect the gerotor motor case-drain line and shaft seal area for weeping or oil staining
  • Check wafer brush wear against the service limit and replace segments approaching the limit
  • Inspect quick-coupler wear plates, hook or wedge components for wear
  • Check frame and hopper welds for early signs of cracking
Every 500 h
  • Check gerotor motor case-drain flow and pressure against carrier hydraulic shop limits
  • Check broom-core bearing end-play and shaft runout
  • Torque-check gerotor motor mounting bolts and drive coupling hardware
  • Inspect water tank, spray lines and fittings for corrosion or cracking if equipped
  • Inspect hopper hinge pins and latch mechanism for wear
Every 1,000 h
  • Replace the gerotor motor shaft seal if any weeping was confirmed at earlier checks
  • Replace worn broom-core bearings and associated seals
  • Re-torque all frame, hitch and coupler fasteners to spec
  • Replace pivot and mount-pin bushings showing measurable play
  • Replace bristle wafers as a matched set once wear limits are reached across the core
Every 2,000 h
  • Tear down the brush core assembly for full bearing, shaft and seal inspection
  • Replace the gerotor motor if internal leakage or wear exceeds carrier-hydraulic-shop limits
  • Inspect the hitch frame and pin bores for fatigue cracking, especially at high-stress weld joints
  • Rebuild or replace the floating suspension linkage that lets the core follow grade changes
  • Refinish or repaint the frame where corrosion has broken through
Every 4,000 h
  • Perform a complete brush-core and drive rebuild rather than a piecemeal repair
  • Replace all hydraulic hoses and couplers as a set regardless of visible condition
  • Fully inspect the frame and hitch structure before redeploying the tool to another carrier
  • Replace water tank and spray plumbing if fitted and showing age-related deterioration

Servicing the BP24 beyond the schedule

Predictive Maintenance & Fluid Analysis

The BP24 has no reservoir or filter of its own — its hydraulic health rides entirely on the carrier's system. Monitor the carrier's hydraulic fluid cleanliness and change intervals as the real predictive signal for this attachment. Watch the gerotor motor's case-drain flow and temperature at the coupler; rising case-drain flow or heat signals internal motor wear before it turns into an external leak. Track bristle-wafer wear rate against sweeping hours so you can schedule a wafer-set change before core imbalance overloads the drive.

Corrective & Common Repairs

Most BP24 repairs center on the drive and coupler, not an engine. Weeping at the gerotor motor's shaft seal is the most common failure — replace it before contamination reaches the carrier's hydraulic oil. Wafer brush segments wear unevenly and get replaced as a set to keep the core balanced. Pivot and mount-pin bushings loosen with hours of racking against curbs and debris piles; replace worn bushings and pins together, and check the quick-coupler wedge or hook for wear that lets the tool shift under load.

Overhaul & Rebuild Points

A full BP24 overhaul centers on the brush core and frame rather than a powertrain. Rebuild the core by replacing bearings, shaft and worn wafer segments as a unit instead of patching individual parts. Inspect the hitch and frame at pin bores and weld seams for cracking caused by side-load racking against curbs, walls and debris piles — this is the attachment's main structural failure point. Rebuild or replace the gerotor motor once case-drain flow or internal leakage exceeds carrier hydraulic-shop limits, and check the suspension linkage that lets the core float over grade changes.

Seasonal & Environment Servicing

If the BP24 carries a water-spray kit, drain the tank and spray lines before freezing weather to prevent cracked plumbing and nozzles. Protect exposed threaded height-adjusters and pivot pins with grease or anti-seize to stop corrosion from road salt and wash-down water. In dry, sandy or high-dust environments, grit ingestion accelerates gerotor motor shaft-seal wear — inspect the seal and case-drain more often and keep the wafer core clear of packed debris that raises drive load.

BP24 attachments & work tools

Model identity

BP24 is a Cat pickup broom work tool. Its own parts catalog and service documentation confirm a real, built model, though it carries very little public spec-sheet coverage compared to its BP15/BP18/BP22/BP25 siblings. Treat era, generation, and successor status as unconfirmed pending a dealer serial lookup.

Size class

Cat pickup brooms for backhoe loaders, compact wheel loaders, and small wheel loaders run sweeping widths of roughly 2.2-2.5 m (86-98 in) across the documented BP22/BP25 pair. BP24 sits numerically between them and likely falls in this same size class, but its own sweeping width is not published and should be confirmed against the tool's data plate.

Drive motor arrangement

Service documentation confirms BP24 uses a gerotor-style hydraulic motor driving the brush core, the same drive principle used across the whole Cat pickup and utility broom range. Larger siblings in this size class add a second in-line motor for extra torque, while smaller ones run a single motor; which arrangement BP24 uses is not documented.

Coupler and hydraulic interface

Wheel-loader- and backhoe-loader-class pickup brooms in this family mount through a hook-type loader coupler group and run on a third-function auxiliary hydraulic circuit, unlike the skid-steer wedge quick-coupler used on compact-loader brooms. Confirm which interface BP24 actually uses for its specific host machine before ordering mounting hardware.

Bristle and brush options

Cat pickup brooms in this class come standard with replaceable polypropylene bristle sections, with a 50/50 poly-and-steel-wire mix offered for tougher debris and compacted material. Convoluted core sections allow bristle material to be swapped without removing the full brush core.

Dust-control and edge-clean kits

Common factory options across this broom family are a water sprinkler dust-suppression kit fed from an integrated tank, and a side-mounted gutter brush kit for cleaning along curbs and pavement edges. Availability of these specific kits for BP24 is not confirmed from source material.

Suspension and guarding features

Class siblings use a suspension/leveling system so the brush floats over the work surface without support wheels, plus parking stands that keep bristles off the ground during storage to prevent flat-spotting. Whether BP24 shares this exact suspension design is not confirmed.

Documentation status

BP24 is absent from Cat's current global brooms catalog and from every dated broom Specalog and parts manual checked back to the late 1990s, which otherwise cover the rest of the BA/BP/BU broom family. Any capacity, weight, dimension, or flow figure quoted for BP24 elsewhere should be verified against its own data plate or a dealer serial-number lookup before use.

All BP24 assemblies by section

Every catalogued assembly group for the Caterpillar BP24. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Frame And Body
219-1277 Frame Gp-Broom
08***91Plate2
21***97Bracket As2
21***12Bracket As4
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221-8339 Frame Gp-Debris
22***30Frame As1
22***38Pivot As2
22***39Frame Group-Debris1
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Hydraulic System
221-8371 Cylinder & Mtg Gp-Broom
21***22Pin2
21***23Cylinder Group-Hydraulic2
21***24Pin2
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221-8360 Hydraulic Ar
22***60Hydraulic Ar1
22***61Lines Group-Connecting1
22***64Lines Group-Hydraulic1
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231-4508 Lines Gp-Connecting
0S***15Bolt 19 mm (.75 In.) Long Return Air Console To Enclosed Rops1
13***52Washer; (7.2x45x2.5-mm Thk)1
14***45Connector As1
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221-8361 Lines Gp-Connecting
11***37Clamp-Double1
14***15Connector As3
14***42Connector Group1
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221-8369 Lines Gp-Cylinder
10***05Plate2
14***25Connector As.4
14***68Elbow Group4
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221-8364 Lines Gp-Hydraulic
09***49Bolt; (M8x1.25x40-mm)1
10***05Plate2
14***40Adapter; (Straight) (-8 Orb X -8 Orfs)2
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231-8063 Manifold Gp-Control
22***61Valve As-Check1
22***62Valve As-Control; (Sequence)1
22***63Valve As-Flow Control1
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219-1244 Motor Gp-Gerotor
21***44Motor Group-Gerotor1
22***60Kit-Seal1
22***67Washer; (22x44x4-mm Thk)1
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Service Equipment And Supplies
221-8385 Film Gp
13***39Film-Stripe; (Red)(625cm)0
15***35Film-Warning; (Crush Hazard, Stay Back)2
15***36Film-Warning; (Read Operation Manual)1
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Work Tool Arrangement
221-1970 Broom Ar-Pickup
21***76Brush Group-Broom1
21***77Frame Group-Broom1
22***70Broom Ar-Pickup1
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221-1960 Broom Ar-Pickup
21***76Brush Group-Broom1
21***77Frame Group-Broom1
21***93Hitch Group-Broom1
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221-8390 Brush Ar-Gutter
22***90Brush Ar-Gutter1
22***79Brush Group-Gutter1
23***08Lines Group-Connecting1
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Work Tools
219-1276 Brush Gp-Broom
21***39Core As-Brush1
21***40Plate1
21***41Bearing1
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228-6479 Brush Gp-Gutter
09***65Spacer; (17x40x3-mm Thk)2
13***40Locknut; (M8x1.25-Thd)4
15***20Washer; (17x56x5-mm Thk)1
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219-1293 Hitch Gp-Broom
21***56Bearing4
21***58Pivot2
21***87Hitch As1
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221-8392 Hitch Gp-Broom
21***56Bearing4
21***58Pivot2
21***63Pin2
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221-8342 Spray Gp-Water
16***41Bolt; (M10x1.5x50-mm)2
1S***94Clip-R.H. Side Engine Support4
22***42Spray Group-Water1
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BP24 serial number reference

The PIN plate on a Cat work tool like the BP24 broom is riveted or bolted to the attachment frame, usually near the mounting plate or hitch end where it stays visible with the tool off the carrier. Read the first 3 characters as the prefix (identifies the specific model/build series) and the following 5 digits as the sequence number for that unit; a plate reading EAK00512 is BP24 unit 512 built under the EAK prefix.

PrefixIdentifies
EAKBP24 Broom-Pickup (hydraulic pickup broom attachment)

Frequently asked questions

What engine does the Cat BP24 use?

None. The BP24 is a passive hydraulic work tool with no engine or ECM of its own. It runs off the carrier machine's auxiliary hydraulic circuit through a gerotor hydraulic motor that drives the brush core.

What does the Cat BP24 weigh?

Cat has not published an operating weight for this model. Confirm the actual figure from the identification plate or your dealer. Similarly sized wheel-loader and backhoe-loader pickup brooms in this size class run roughly in the low-to-mid hundreds of kilograms, but treat that as a size-class reference only, not a confirmed BP24 figure.

What replaced the Cat BP24?

No confirmed successor is documented. Cat's current broom Specalogs list BP115C, BP118C, BP22 and BP25 as the active pickup-broom lineup, with the BP24 no longer part of the published catalog. It sits in the BP-series pickup-broom family numerically between the BP22 and BP25.

What BP24 owners discuss

How do the bristle wafers wear on a pickup broom this size, and when do they need replacing?
Wear shows up as loss of sweeping pattern before the bristles look obviously short. Down-pressure is the big variable: if the core is set so the bristles bend rather than just flick debris up into the hopper, the sides of the bristles scrub against the surface and wear away fast instead of just the tips. Standard convoluted poly wafers handle general yard and lot debris; where operators fight heavy sand, gravel, or sharp debris they switch to all-wire or a 50/50 poly-and-wire wafer mix for longer life. Once bristle length is worn down to roughly 100-110 mm (4 in) remaining, the core loses reach and can no longer flick material into the hopper even with the head adjusted all the way down — that is the point to replace wafers, not wait for them to go bald.
What causes the broom head adjustment to seize up or go uneven over time?
Most pickup brooms in this class use a bolt-and-nut style height adjustment on each side of the head. Left outdoors and exposed to rain, salt, and grit, the threads corrode and the adjusters freeze in place, which makes it hard to set both sides evenly — one side ends up biting harder than the other and wears the core unevenly. Working the adjusters loose periodically and keeping them greased prevents seizure. Some newer broom lines use pin-style height adjustment instead of threaded bolts specifically to avoid this corrosion problem — worth checking which style is fitted before assuming a stuck adjuster is broken rather than just seized.
What are the common failure points on the gerotor motor that drives the broom core?
The gerotor motor is the single most expensive component on the attachment, and shaft seal failure is the most common reason one gets pulled for repair. The seal only survives if case-drain leakage flow gets a clear path back to the low-pressure return side; if the case drain line is pinched, plugged, or simply not hooked up right, pressure builds behind the shaft seal, wears a groove into the shaft, and eventually blows the seal — showing up as oil weeping from the motor shaft area or, in bad cases, a cracked motor housing. Constant fine dust and grit ingestion at the shaft seal from broom debris accelerates this compared to a clean-environment hydraulic motor. If you see the motor housing running noticeably hotter than the hoses feeding it, or oil accumulating around the motor face, have your dealer verify the case drain routing and seal condition before running it further.
Do these brooms need a specific hydraulic flow and pressure from the carrier machine?
Yes — the gerotor motor is sized for a flow window, and running outside it causes problems either way. Sibling pickup brooms in this size class spec roughly 30-83 L/min (8-22 gpm) at around 145-235 bar (2,100-3,400 psi); exact figures vary by broom size and carrier auxiliary circuit, so match the attachment's own plate spec rather than assuming one size fits all loaders. Too little flow and the core turns sluggish and stalls in heavy material; too much flow and pressure spikes shorten motor and hose life and can blow seals prematurely. Standard-flow skid steers and backhoe loaders run these brooms fine — high-flow auxiliary circuits on a broom sized for standard flow will overdrive it, so confirm carrier auxiliary output against the broom's flow spec before hooking up.
What should I check on the hitch and coupler before buying a used broom attachment?
Check the quick-coupler plate and pins for elongated or oval-worn holes — a broom gets racked side to side while sweeping curbs and edges, which loosens the mount over time more than a bucket sees. Look for cracking or built-up weld repair around the coupler brackets, a sign the attachment has been run loose against the carrier for a while before someone noticed. Also flex-test the whole head side to side by hand with the machine off; noticeable play at the pivot points beyond normal pin clearance means bushings are worn and the broom will chatter and wear unevenly once it's back on a loader.
Any quirks with the water spray dust control kit on these brooms?
The spray bar and nozzles are prone to clogging, especially if the tank has sat with stale water or hard water residue in it — nozzles are small and plug easily compared to the rest of the hydraulic circuit. Most kits run on a self-contained 12V pump independent of the carrier's own electrical system, so a dead spray pump is usually a bad pump, blown fuse, or corroded connector on the kit itself rather than a carrier electrical fault. Tank sizes vary by kit, with larger tanks giving on the order of 20-25 minutes of continuous spray before needing a refill — plan water refill stops accordingly on dusty jobs rather than assuming one tank lasts a full shift.
What should I inspect before buying a used BP24 or similar-size pickup broom?
Walk the core first: spin it by hand if possible and feel for roughness or play in the main shaft bearings — a bearing that's starting to come apart on the main shaft can still look fine visually but will fail quickly once it's back to work under load. Check remaining bristle length against the roughly 100-110 mm (4 in) minimum useful length, and note whether wafers are the wire, poly, or mixed type, since replacement cost differs. Inspect the gerotor motor for weeping at the shaft seal and confirm the case drain line is present and unobstructed. Check the coupler and pivot points for wear as noted above, and confirm hoses and quick-connect couplers aren't cracked or weeping — sun and grit exposure age hose covers faster on a broom than on most other attachments. If the motor shows any sign of leaking or the housing has been repaired, have your dealer verify the motor and case-drain circuit before putting it into service.

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

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