Caterpillar CB-522
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar CB-522 is a ride-on tandem vibratory paving compactor built for asphalt compaction on roads, parking lots, and similar paving work. It belongs to a family of five closely related models, CB-521 through CB-525, that share a single Caterpillar parts catalog and appear to be differentiated mainly by drum width and operating weight class. The CB-522 carries the 6SD serial number prefix, placing it in the same legacy, pre-1995 generation as its siblings; the smaller CB-521 in that family used serial prefix 6RD and an air-cooled Deutz F5L diesel engine. Documentation for the CB-522's own engine, weight, and factory configuration options has not survived into current online catalogs or dealer spec databases, so serial-specific verification with a dealer is recommended before ordering parts or planning service.
Little published material distinguishes what changed between the CB-521, CB-522, CB-523, and CB-524 beyond size and drum width class, since Caterpillar issued them under one shared parts and service documentation set rather than separate model-by-model spec sheets. Some siblings in the broader family continued into a later B-series generation, including the CB-523B and CB-525B, before Caterpillar moved on to its modern tonnage-based compactor lineup. No B-series CB-522 has been identified. In today's used and parts market, a CB-522 is mainly a low-cost compaction asset for small paving contractors and rental yards; sourcing parts usually means cross-referencing against the shared CB-521-525 parts catalog and verifying fitment by serial number rather than relying on a model-specific spec sheet.
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-522 specifications
Engine
| Availability | Not documented in currently available spec sources. The CB-522 belongs to Caterpillar's original CB-521 through CB-525 tandem vibratory paving compactor family, factory records place its introduction around 1986 (serial number prefix 6SD and up). This generation predates the online spec-sheet coverage maintained by current equipment spec databases, which start their Cat compactor coverage from later generations (2000s-era models onward). No verifiable engine model, power, displacement, cylinder count, or emissions tier could be confirmed for this unit — verify with a dealer using the machine serial number. |
Weights
| Operating weight | Not documented for this model in available sources — verify with your dealer using the machine serial number |
Dimensions
| Transport dimensions | Not documented for this model in available sources — verify with your dealer using the machine serial number |
Performance
| Travel speed / class performance | Not documented for this model in available sources — verify with your dealer using the machine serial number |
Service capacities (summary)
| Fuel, hydraulic, oil, coolant capacities | Not documented for this model in available sources — verify with your dealer using the machine serial number |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
CB-522 fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with oil filter) | Not documented in publicly accessible sources for the CB-522 by serial/engine option. This compactor shares a parts-book family with the CB-521, CB-523, CB-524 and CB-525, which were built with more than one power-unit option across the run, so crankcase fill varies by the specific engine fitted. Check the dipstick markings or the machine's own OMM refill chart for the confirmed figure. | Cat Diesel Engine Oil (Cat DEO) is Caterpillar's standard crankcase recommendation for compactors of this class, graded by ambient temperature per the OMM's climate chart (typically SAE 15W-40 in temperate service, lighter multigrade in cold climates). If the machine carries the air-cooled diesel used elsewhere in this same compactor family rather than a Cat-branded engine, follow that engine builder's own oil spec instead of Cat DEO. |
| Cooling system | Not documented for the CB-522 specifically. Flag before ordering coolant: at least one sibling model in the same CB-521 through CB-525 parts-book family runs on an air-cooled diesel with no liquid cooling circuit, so confirm the CB-522 is actually liquid-cooled before assuming a coolant fill applies to it. | Where a liquid-cooled engine option is fitted, Cat Extended Life Coolant (Cat ELC) or a full-strength ethylene-glycol antifreeze mixed per the OMM's cold-weather protection chart is the standard Caterpillar recommendation for this compactor class. Not independently confirmed for the CB-522. |
| Fuel tank | Not documented in publicly accessible sources for the CB-522. Refer to the tank decal or the OMM refill chart for the exact figure. | No. 2-D diesel fuel per Caterpillar's standard fuel specification for compactor engines of this era; use winter-blend or a No. 1-D/No. 2-D mix in cold ambient conditions per the OMM guidance. |
| Hydraulic system and tank | Not documented in publicly accessible sources for the CB-522. Propel and vibratory-drive hydraulics on compactors of this size class typically use a reservoir sized in the tens of liters, but the exact figure requires the OMM refill chart or a dealer parts lookup by serial number. | Cat Hydraulic Oil (Cat HYDO, TDTO-based) at the viscosity grade called out for ambient temperature in the OMM's climate chart is the standard Caterpillar recommendation for this compactor class. Not independently confirmed for the CB-522. |
| Travel drive / final drive housings (where fitted) | Not documented in publicly accessible sources for the CB-522. | Cat Transmission/Drive Train Oil (Cat TDTO) is the general Caterpillar recommendation for enclosed drive and final-drive housings on compactors of this class; confirm the exact grade and fill volume in the OMM. |
| Grease points (drum bearings, pivots, linkage) | Not a fill volume — lubricated per the grease-point schedule in the OMM at the specified service interval. | Cat Multipurpose Grease (Cat MPGM) or an NLGI Grade 2 lithium-complex EP grease is Caterpillar's standard recommendation across this compactor line for drum bearings, articulation pivots and linkage points. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar CB-522 maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the CB-522 beyond the schedule
Predictive maintenance & fluid analysis
On a legacy compactor like the CB-522, oil analysis is the most useful predictive tool available since factory-specific wear tables for this serial range are hard to find today. Sample engine oil and hydrostatic drive fluid at each service interval and trend iron, silicon, and water content, since the drum's vibratory bearings and pump seals are common failure points. Watch coolant condition closely if your unit is water-cooled, and check air-cooled Deutz-family cylinder fins for restriction that can mask developing overheating.
Corrective & common repairs
Expect drum scraper wear, water-spray nozzle clogging, and hydrostatic control linkage drift as the most frequent fixes on a CB-522 in daily paving use. Leaking drum bearing seals and worn vibratory bushings show up as grease weeping at the drum ends and should be repacked or replaced before the bearing itself is damaged. Because this model predates Caterpillar's current parts catalogs, cross-reference components against the shared CB-521/523/524 family parts book before ordering.
Overhaul & rebuild points
Major rebuild work on the CB-522 centers on the vibratory drum assembly and the hydrostatic drive train, both of which see continuous duty cycling under asphalt compaction loads. Plan to inspect the eccentric weight shaft, drum bearings, and drive pump and motor set for wear once the machine passes the higher end of its service life. Engine overhaul timing depends on the air-cooled Deutz-family unit's compression and oil consumption trend rather than a fixed hour number for this legacy model.
Seasonal & environment servicing
Flush and drain the water spray tank and lines before winter storage to prevent freeze cracking, since these compactors rely on a functioning spray system to keep asphalt off the drums. In hot climates, check air-cooled engine cooling fins and shrouding often, since caked-on asphalt dust restricts airflow faster than on soil compactors. Store the machine with drums blocked and the hydrostatic system relieved of pressure, and grease exposed linkage and cylinder rods during layup.
CB-522 common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 081-4172 | Filter Element-Water | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
CB-522 fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Engine oil pressure warning lamp (red, oil-can symbol) | Engine oil pressure has dropped below the safe switch setting | Low oil level, worn oil pump, clogged oil filter, or failed oil pressure sending switch | Stop engine immediately, check oil level and filter condition before restarting |
| Charging system warning lamp (red, battery symbol) | Alternator is not charging the battery | Broken or slipping alternator belt, faulty alternator, loose or corroded wiring connection | Check belt tension and battery connections, test alternator output with a meter |
| Engine temperature warning lamp | Engine coolant or cylinder-head temperature has exceeded the safe operating range | Low coolant, blocked radiator or cooling fins, failed thermostat, slipping fan belt | Idle and shut engine down safely, check coolant level and radiator/fin cleanliness before resuming work |
| Air cleaner restriction indicator (yellow/red pop-up flag on air cleaner housing) | Engine air filter element is clogged, restricting intake airflow | Dust and debris loading on the paper or foam filter element | Service or replace the air filter element and reset the restriction indicator |
| Hydraulic oil temperature warning lamp | Hydraulic system fluid temperature is above normal operating range | Low hydraulic fluid level, clogged oil cooler fins, worn pump generating excess heat | Shut down and let the system cool, check fluid level and cooler for debris before restarting |
| Hydraulic filter bypass/restriction indicator (pop-up pin on filter housing) | Hydraulic return or charge filter is loading up and beginning to bypass | Filter element due for service, contaminated hydraulic fluid | Replace the hydraulic filter element and inspect fluid for contamination |
| Low fuel level warning lamp | Fuel tank level has dropped to reserve | Normal fuel consumption, or a fuel gauge sender fault if the lamp stays on after refueling | Refuel; if the lamp does not clear after refueling, check the tank sender unit and wiring |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
CB-522 attachments & work tools
Machine type & family context
CB-522 is a legacy tandem vibratory smooth-drum asphalt (paving) compactor, articulated double-drum frame, grouped by Caterpillar parts documentation together with the CB-521, CB-523, CB-524 and CB-525 models of the same era. Each of these carries its own distinct serial-number prefix, so components and kits are not automatically interchangeable across the family even though the machines share a design generation.
Drum scraper / cleaning bars
Smooth-drum tandem asphalt rollers of this class use adjustable scraper bars riding against each drum to strip picked-up mix and keep the drum surface clean during rolling. Exact scraper style and adjustment range for this specific model is not documented in available public sources; confirm the correct scraper kit with a dealer parts lookup by serial number.
Water spray / drum-wetting system
A drum-wetting system (onboard water tank feeding spray bars and nozzles ahead of each drum) is standard practice on this compactor type to stop hot-mix asphalt sticking to the drum shells. Some units in this class offered a secondary tank or metering circuit for a release-agent additive alongside plain water; whether that dual-tank option was factory-available on the CB-522 specifically is not confirmed and should be checked against the machine's original option sheet.
Operator protection: canopy / ROPS
Legacy small-class tandem rollers of this vintage were typically fitted with an open operator's station under a ROPS canopy rather than an enclosed cab; a fold-down sunshade/canopy was the usual weather protection. No enclosed-cab option is documented for the CB-522 in available sources, consistent with the open-station convention for compactors of this size and era.
Vibratory drum arrangement
As a tandem vibratory roller the CB-522 compacts with two vibrating steel drums (front and rear) rather than towed or trailing work tools; typical machines in this class offer selectable vibration frequency/amplitude and a drum lock-out for static (non-vibrating) passes. Published frequency, amplitude and drum-width figures specific to the CB-522 could not be verified from available sources and vary by configuration/series within the CB-521-525 family.
Frame articulation & propel drive
The machine steers through a center-hinged articulation joint between the front and rear drum frames, with hydrostatic propel and vibratory drive supplied by the machine's own onboard hydraulic system. Because propel, steering and vibration are all built-in hydraulic functions, no auxiliary hydraulic attachment kit is required to run the standard drum accessories.
Coupler / mounting system for work tools
Unlike loaders or excavators, this compactor has no quick-coupler or work-tool mounting plate; it is a dedicated single-purpose rolling machine. The only field-fitted accessories are the ancillary kits noted above (scraper bars, water-spray plumbing, canopy/guarding), which mount directly to the drum frames and operator platform rather than through an interchangeable coupler.
Guarding & options
Typical options on rollers of this class include belly/underframe guards and drum-edge guarding for curb or edge work, plus a rear-view mirror and work-light package for the canopy. No factory option list specific to the CB-522 was found in public documentation; treat this as general class-level practice and verify against the specific unit's option tag.
All CB-522 assemblies by section
Every catalogued assembly group for the Caterpillar CB-522. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Air Inlet And Exhaust System
5e7590 Intake Gp-Air
| 5E***90 | Air Cleaner Group | 1 |
5e7589 Air Cleaner Gp
| 5E***89 | Air Cleaner Group | 1 |
5e7588 Exhaust Gp
| 5E***88 | Exhaust Group | 1 |
5e7587 Exhaust Gp
| 5E***87 | Exhaust Group | 1 |
Braking System
1g3670 Brake Gp-Parking (Unlock)
| 1G***70 | Brake Group-Parking | 1 |
5e7642 Lines Gp-Brake
| 5E***42 | Lines Group-Brake | 1 |
5e7641 Lines Gp-Brake
| 5E***41 | Lines Group-Brake | 1 |
5e7640 Lines Gp-Brake
| 5E***40 | Lines Group-Brake | 1 |
Cooling System
5e7616 Lines Gp-Cooler
| 5E***16 | Lines Group-Cooler | 1 |
5e7617 Lines Gp-Water
| 5E***17 | Lines Group-Water | 1 |
Electrical System
849059 Box Gp
| 08***59 | Box Group-Instrument | 1 |
7r2072 Box Gp
| 7R***72 | Box Group-Instrument | 1 |
5e7702 Electrical Gp
| 5E***02 | Electrical Group | 1 |
5e7745 Horn Gp-Electric
| 5E***45 | Horn Group-Electric | 1 |
5e7744 Horn Gp-Electric
| 5E***44 | Horn Group-Electric | 1 |
831124 Kit-Warning
| 08***37 | Button; (Warning Lights) | 1 |
| 08***24 | Kit-Warning | 1 |
| 08***41 | Wiring Harness; (Warning) | 1 |
1g3826 Light Gp-Warning
| 08***20 | Washer | 3 |
| 08***90 | Orange Control Lamp; (Diff Control) | 1 |
| 08***32 | Cord Eye | 1 |
852245 Lamp Gp
| 08***45 | Lamp Group | 1 |
852638 Lamp Gp
| 08***38 | Lamp Group | 1 |
1081029 Lamp Gp-Rotating Warning
| 10***29 | Lamp Group-Warning Beacon; (24-Volt, Amber) | 1 |
826747 Light Gp
| 08***47 | Lighting Group; (Rotating Beacon) | 1 |
1097259 Lighting Gp-Beacon
| 10***29 | Lamp Group-Warning Beacon; (24-Volt, Amber) | 1 |
| 10***59 | Lighting Group-Beacon | 1 |
848330 Module Ar
| 08***30 | Module Ar | 1 |
1g3854 Mounting Gp-Tachometer
| 1G***54 | Mounting Group | 1 |
1088201 Mounting Gp-Switch
| 10***01 | Mounting Group-Switch | 1 |
814135 Regulator As
| 08***35 | Regulator As | 1 |
1g3685 Warning Gp-Back-Up
| 1G***85 | Warning Group-Backup | 1 |
5e7012 Wiring Gp-Console
| 5E***12 | Wiring Group; Wiring Gp-Console | 1 |
1g4177 Wiring Gp
| 1G***77 | Wiring Group | 1 |
5e7014 Wiring Gp-Console
| 5E***14 | Wiring Group; Wiring Gp-Console | 1 |
5e7017 Wiring Gp
| 5E***17 | Wiring Group | 1 |
5e7015 Wiring Gp-Console
| 5E***15 | Wiring Group; Wiring Gp-Console | 1 |
5e7263 Wiring Gp-Console
| 5E***63 | Wiring Group-Console | 1 |
5e7009 Wiring Gp-Console
| 08***43 | Counter-Hour | 1 |
| 08***85 | Blinker Central | 1 |
| 08***58 | Meter; (Vib. Tachometer) | 1 |
5e7700 Wiring Gp-Instrument
| 5E***00 | Wiring Group-Instrument | 1 |
5e7701 Wiring Gp-Instrument
| 5E***01 | Wiring Group-Instrument | 1 |
5e7713 Wiring Gp-Main
| 5E***13 | Wiring Group-Main | 1 |
5e7715 Wiring Gp-Main
| 5E***15 | Wiring Group-Main | 1 |
5e7711 Wiring Gp-Main
| 5E***11 | Wiring Group-Main | 1 |
5e5122 Wiring Gp-Pivot
| 5E***22 | Wiring Group-Pivot | 1 |
Engine Installation
5e7586 Engine Gp
| 5E***86 | Engine Group | 1 |
5e7585 Support Gp-Engine
| 5E***85 | Support Group-Engine | 1 |
Frame And Body
1g4174 Articulation Gp
| 1G***74 | Articulation Group | 1 |
| 5E***22 | Wiring Group-Pivot | 1 |
| 5E***06 | Pivot Group-Steering | 1 |
5e7742 Ballast Gp
| 5E***42 | Ballast Group | 1 |
5e7723 Canopy Gp
| 5E***23 | Canopy Group | 1 |
5e7724 Canopy Gp
| 5E***24 | Canopy Group | 1 |
5e7652 Frame Gp (Front)
| 5E***52 | Frame Group | 1 |
5e7650 Frame Gp
| 5E***50 | Frame Group | 1 |
5e7656 Pivot Gp-Steering
| 5E***56 | Pivot Group-Steering | 1 |
5e7706 Pivot Gp-Steering (Offset Articulation)
| 5E***06 | Pivot Group-Steering | 1 |
5e7655 Scraper Gp-Drum (Rear)
| 5E***55 | Scraper Group-Drum | 1 |
5e7654 Scraper Gp-Drum (Front)
| 5E***54 | Scraper Group-Drum | 1 |
5e7743 Shield Gp
| 5E***43 | Shield Group | 1 |
Fuel System
5e7591 Tank Gp-Fuel
| 5E***91 | Tank Group-Fuel | 1 |
5e7592 Tank Gp-Fuel
| 5E***92 | Tank Group-Fuel | 1 |
Hydraulic System
5e7638 Cylinder Gp-Hydraulic (Rear)(Chg 00)
| 5E***38 | Cylinder Group-Hydraulic | 1 |
5e7639 Cylinder Gp-Hydraulic (Rear)(Chg 00)
| 5E***39 | Cylinder Group-Hydraulic | 1 |
812443 Flange Gp
| 08***43 | Flange Group | 1 |
5e7710 Lifting Gp (Cab)
| 5E***10 | Lifting Group | 1 |
5e7746 Lines Gp-Offset Articulation
| 5E***46 | Lines Group | 1 |
5e7746 Lines Gp (Offset Articulation)
| 5E***46 | Lines Group | 1 |
5e7637 Lines Gp (Suspension Lifting)
| 5E***37 | Lines Group | 1 |
1g3662 Lines Gp-Control
| 1G***62 | Lines Group-Control | 1 |
5e7599 Lines Gp-Hydraulic (Traction)
| 5E***99 | Lines Group-Hydraulic | 1 |
5e7598 Lines Gp-Hydraulic (Traction)
| 5E***98 | Lines Group-Hydraulic | 1 |
5e7597 Lines Gp-Hydraulic (Traction)
| 5E***97 | Lines Group-Hydraulic | 1 |
5e7594 Lines Gp-Hydraulic (Traction)
| 5E***94 | Lines Group-Hydraulic | 1 |
5e7718 Lines Gp (Vibratory)
| 5E***18 | Lines Group-Vibratory | 1 |
5e7609 Lines Gp-Vibratory
| 5E***09 | Lines Group-Vibratory | 1 |
5e7293 Motor As-Hydraulic (Rear Traction)
| 5E***93 | Motor As-Hydraulic | 1 |
5e7272 Motor As-Hydraulic (Front Traction)
| 5E***72 | Motor As-Hydraulic | 1 |
5e6960 Motor As-Hydraulic (Traction-Front & Rear)
| 5E***60 | Motor As-Hydraulic | 1 |
5e7273 Motor As-Hydraulic (Front Traction)
| 5E***73 | Motor As-Hydraulic | 1 |
832077 Motor As-Hydraulic (Rear Traction)
| 08***77 | Motor Group-Hydraulic | 1 |
826396 Pump Gp-Hydraulic
| 08***96 | Pump Group-Cab Tilt | 1 |
1g3659 Pump Gp-Hydraulic
| 1G***59 | Pump Group-Hydraulic | 1 |
5e7601 Pump Gp-Traction
| 5E***01 | Pump Group-Traction | 1 |
5e7618 Tank Gp-Hydraulic
| 5E***18 | Tank Group-Hydraulic | 1 |
851684 Valve Gp (Flow Divider)
| 08***84 | Valve Group | 1 |
832582 Valve As
| 08***82 | Valve Group-Relief; (Pressure Limiter) | 1 |
Operator Station
5e7704 Cab Gp
| 5E***04 | Cab Group | 1 |
5e7705 Cab Gp
| 5E***05 | Cab Group | 1 |
5e7721 Cab Gp (Rops)
| 5E***21 | Cab Group | 1 |
5e7719 Cab Gp (Rops)
| 5E***19 | Cab Group | 1 |
0830710 Cab Gp
| 08***10 | Cab Group | 1 |
5e7645 Control Gp-Acceleration
| 5E***45 | Control Group-Acceleration | 1 |
5e7646 Control Gp-Forward/Reverse
| 5E***46 | Control Group-Forward/Reverse | 1 |
5e7648 Dash Gp-Instrument Control
| 5E***48 | Dash Group | 1 |
1g3843 Heater Gp
| 1G***43 | Heater Group | 1 |
5e7725 Heater Gp-Cab
| 5E***25 | Heater Group-Cab | 1 |
828678 Heater Gp-Cab
| 08***78 | Heater Group-Cab | 1 |
5e7649 Indicator Gp
| 5E***49 | Indicator Group | 1 |
5e7741 Insulation Gp-Heat
| 5E***41 | Insulation Group-Heat | 1 |
1103928 Module Gp
| 11***28 | Module Group-Speed & Vibratory | 1 |
5e7747 Panel Gp-Instrument
| 5E***47 | Panel Group-Instrument | 1 |
1283805 Seat Gp
| 12***05 | Seat Group | 1 |
1032113 Seat Gp
| 10***13 | Seat Group | 1 |
1g3688 Seat Gp
| 1G***88 | Seat Group | 1 |
1283804 Seat Gp
| 12***04 | Seat Group | 1 |
5e7707 Seat Gp
| 5E***07 | Seat Group | 1 |
5e7708 Seat Gp
| 5E***08 | Seat Group | 1 |
Power Train
5e7593 Coupling Gp-Pump
| 5E***93 | Coupling Group-Pump | 1 |
5e7621 Drum Gp-Front
| 5E***21 | Drum Group-Front | 1 |
5e7619 Drum Gp-Front
| 5E***19 | Drum Group-Front | 1 |
5e7623 Drum Gp-Rear
| 5E***23 | Drum Group-Rear | 1 |
5e7625 Drum Gp-Rear
| 5E***25 | Drum Group-Rear | 1 |
5e7729 Inflation Gp-Tire
| 5E***29 | Inflation Group-Tire | 1 |
832177 Stop Gp-Wheel
| 08***77 | Stop Group-Wheel | 1 |
0827040 Tire Gp-Smooth
| 08***40 | Tire Group; (Central) | 1 |
5e7521 Wheel As-Ribbed
| 5E***21 | Tire Group; (Scultured)(16-00-20xs) | 1 |
1g2973 Valve Gp-Solenoid
| 1G***73 | Valve Group-Solenoid | 1 |
5e7728 Wheel Gp
| 5E***28 | Wheel Group | 1 |
1g3932 Wheel Gp-Ribbed
| 1G***32 | Wheel Group | 1 |
1g3929 Wheel Gp
| 1G***29 | Wheel Group | 1 |
1g3931 Wheel Gp
| 1G***31 | Wheel Group | 1 |
5e7727 Wheel Gp
| 5E***27 | Wheel Group | 1 |
5e7622 Wheel Gp-Rear
| 5E***22 | Wheel Group-Rear | 1 |
Service Equipment And Supplies
5e7749 Decal Gp
| 5E***49 | Film Group | 1 |
1g3101 Film Gp-German
| 1G***01 | Film Group | 1 |
| 3E***51 | Plate-Warning | 2 |
| 5P***70 | Plate-Warning; (Read Omm) | 1 |
1g3877 Film Gp-French
| 1G***77 | Film Group | 1 |
| 3E***52 | Plate-Warning | 2 |
| 5P***67 | Plate-Warning; (Read Omm) | 1 |
1g3102 Film Gp-Spanish
| 1G***02 | Film Group | 1 |
| 3E***67 | Plate-Warning | 2 |
| 3E***42 | Film-Instruction | 1 |
1g3104 Film Gp-Portuguese
| 1G***04 | Film Group | 1 |
| 3E***55 | Film-Instruction | 1 |
| 3E***68 | Plate-Warning | 2 |
1g3103 Film Gp-Italian
| 1G***03 | Film Group | 1 |
| 3E***56 | Film-Instruction | 1 |
| 3E***69 | Plate-Warning | 2 |
Steering System
0815270 Block Gp-Control
| 08***70 | Block Group-Control | 1 |
5e7644 Control Gp-Steering
| 5E***44 | Control Group-Steering | 1 |
5e7643 Control Gp-Steering
| 5E***43 | Control Group-Steering | 1 |
5e7081 Cylinder Gp
| 5E***81 | Cylinder Group | 1 |
5e7636 Cylinder Gp-Hydraulic (Steering) (Chg 02)
| 5E***36 | Cylinder Group-Hydraulic | 1 |
5e7636 Cylinder Gp-Hydraulic (Steering) (Chg 00)
| 5E***36 | Cylinder Group-Hydraulic | 1 |
5e7635 Cylinder Gp-Hydraulic (Steering) (Chg 00)
| 5E***35 | Cylinder Group-Hydraulic | 1 |
5e7630 Lines Gp-Steering
| 5E***30 | Lines Group-Steering | 1 |
5e7631 Lines Gp-Steering
| 5E***31 | Lines Group-Steering | 1 |
5e7633 Pump Gp-Steering
| 5E***33 | Pump Group-Steering | 1 |
826511 Pump Gp-Steering
| 08***11 | Pump Group-Steering | 1 |
5e7634 Valve Gp (Distributor)
| 5E***34 | Valve Group | 1 |
0826900 Valve Gp
| 08***00 | Valve Group | 1 |
Vibratory System
0814446 Mat As
| 08***46 | Mat As | 1 |
814456 Motor Gp-Vibratory
| 08***56 | Motor Group | 1 |
5e7614 Motor Gp-Piston (Vibratory)
| 5E***14 | Motor Group-Piston | 1 |
5e7613 Motor Gp-Piston (Vibratory)
| 5E***13 | Motor Group-Piston | 1 |
813965 Pump As
| 08***65 | Pump Group | 1 |
832078 Pump Gp-Hydraulic (Vibratory)
| 08***78 | Pump Group-Hydraulic | 1 |
830420 Pump Gp-Hydraulic (Vibratory)
| 08***20 | Pump Group-Vibratory | 1 |
813326 Valve Gp-Pressure Limiter
| 08***26 | Valve Group | 1 |
813660 Valve Gp-Solenoid
| 08***60 | Valve Group | 1 |
5e7627 Vibrator Gp (3 Amplitude)
| 5E***27 | Vibrator Group | 1 |
5e7626 Vibrator Gp (1 Amplitude)
| 5E***26 | Vibrator Group | 1 |
Water Spray System
5e7740 Mat Gp-Water
| 5E***40 | Mat Group-Water | 1 |
1g3825 Mounting Gp
| 1G***25 | Mounting Group | 1 |
814502 Pump Gp-Water Spary
| 08***02 | Pump Group | 1 |
5e7738 Pump Gp-Water Spray
| 5E***38 | Pump Group | 1 |
814502 Pump Gp-Water Spray
| 08***02 | Pump Group | 1 |
813450 Pump Gp (Water Spray)
| 08***50 | Pump Group-Water | 1 |
0832587 Spray Bar As
| 08***87 | Spray Bar As; (Rear)(Cb521 & 523) | 1 |
5e6962 Spray Bar As
| 08***48 | Nozzle | 6 |
| 08***63 | Cap | 6 |
| 08***65 | Seal | 6 |
5e7733 Water Spray Gp
| 5E***33 | Spray Group-Water | 1 |
5e7730 Water Spray Gp
| 5E***30 | Spray Group-Water | 1 |
5e7732 Water Spray Gp
| 5E***32 | Spray Group-Water | 1 |
5e7735 Water Spray Gp
| 5E***35 | Spray Group-Water | 1 |
5e7736 Water Spray Gp
| 5E***36 | Spray Group-Water | 1 |
0812909 Strainer Gp-Water
| 08***09 | Strainer Group-Water | 1 |
1g3228 Water Spray Gp
| 1G***28 | Water Spray Group | 1 |
CB-522 serial number reference
On this compactor the PIN/serial plate is riveted to the main frame, typically near the articulation joint or on the operator platform frame rail, rather than under the hood. For a machine in this age bracket the plate shows the older 8-character Caterpillar format used before 2002: a 3-letter prefix identifying the model/build series, followed by a 5-digit sequence number unique to that machine. No model year is embedded in the digits themselves - the prefix has to be matched against a serial-prefix reference to identify the production era.
| Prefix | Identifies | Notes |
|---|---|---|
| 6SD | CB-522 vibratory compactor, 6SD1 and up | Standard factory serial prefix for the CB-522 paving compactor. The CB-522 shares its parts-manual family with the CB-521 (6RD prefix), CB-523 (6TD prefix) and CB-524 (6WD prefix); each model in the group carries its own distinct sequential prefix rather than sharing 6SD. Engine model, build plant, and production year range are not documented for this prefix - confirm those details with a dealer using the full serial number. |
Frequently asked questions
What engine does the Caterpillar CB-522 use?
Documentation for this exact model is limited. The CB-522 belongs to the CB-521 through CB-525 family that shares a Caterpillar parts catalog, and the CB-521 sibling in that family is confirmed to run an air-cooled Deutz F5L diesel. No confirmed engine spec for the CB-522 itself has surfaced in available documentation, so verify the engine plate data with your dealer using the machine's serial number.
What is the operating weight of the Caterpillar CB-522?
No factory spec sheet for the CB-522 is available in current documentation. Compact tandem paving compactors from this family and era generally fall in a roughly 1.5 to 4 tonne (3,300 to 8,800 lb) range depending on where a given model sits in the CB-521-525 lineup, so treat this as a class estimate rather than a confirmed number and check the machine's nameplate for its exact weight.
What replaced the Caterpillar CB-522?
No direct CB-522B successor was ever released. The CB-521-525 family carried into a later B-series generation for some siblings, including the CB-523B and CB-525B, before Caterpillar moved to its current tonnage-based naming such as CB2.5, CB2.7, and CB4.0. There is no documented one-to-one replacement model for the CB-522 specifically.
What CB-522 owners discuss
Is there much real-world owner or mechanic discussion of the CB-522 specifically?
What engine does the CB-522 run, and are there known quirks with it?
What hydraulic and propel behaviors are typical for this class of roller?
What wear patterns typically show up on the drums, bearings, and articulation joint?
What electrical or sensor issues come up on older Cat vibratory compactors like this one?
What should a buyer check on a used CB-522 or a similarly old Cat tandem roller?
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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