Komatsu D32E/P-1, D38E/P-1 & D39E/P-1 Crawler Tractor Shop Manual – 1998 (P/N CEBM003100)

This 1998 Komatsu chassis shop manual covers the D32E-1, D32P-1, D38E-1, D38P-1, D39E-1 and D39P-1 crawler tractors within the serial ranges listed above. Issued in November 1998 as P/N CEBM003100, it provides factory repair procedures, inspection criteria and adjustment data.

PDF Navigation, Search and Drawing Readability

Searchable service text and chapter bookmarks: Text search works across service sections, although some diagram labels are image-based. Chapter and subsection bookmarks navigate the manual; the MAIN MENU link points to an external file. Small wiring labels require magnification, and some remain soft.

One printable English PDF contains 636 pages, including the cover, two blank pages, two publication/order pages and a revision proposal form.

Chassis Repair Coverage at a Glance

The following is a selection of covered workshop topics. Additional material includes bolt identification, standard torque charts and mounted-equipment wear plates, rub bars and bushings.

• Torque converter and transmission: Component removal, teardown and assembly, including directional shafts, clutch packs, regulator valves and drivetrain pressure checks.
• Steering and brakes: Steering cylinder repair, planetary gear carrier disassembly, brake operation, linkage adjustment and inspection of associated assemblies.
• Equipment hydraulics: Blade and ripper cylinders, control valves, pumps, relief testing, cylinder leakage checks and hydraulic fault isolation.
• Undercarriage: Front idlers, track rollers, adjusters, recoil springs and track frame alignment, supported by component wear and clearance information.
• Split link track chain: Track removal and installation, joint repair, press work, vacuum testing and lubrication for the chain assemblies.
• Engine installation and cooling: Engine removal and installation, throttle and decelerator adjustment, cooling fault diagnosis, radiator servicing and fan assemblies.
• Electrical system: Circuit descriptions and a wiring diagram covering starting, charging, lighting, indicators and accessories, with fuse and test-equipment information.

Written for service personnel responsible for tractor overhaul and repair, the procedures assume workshop equipment and specialist tools. Follow the manual's precautions for supported loads, hydraulic pressure and spring-loaded assemblies.

Transmission Fits and Steering Adjustments

Countershaft shim calculations, bevel gear carrier setup and bearing clearance tables provide measured checks for assembly decisions. The drivetrain schematic, rate of rise valve cross-sections, main regulator valve exploded view and brake pad flat view support the component descriptions and adjustment procedures.

Final Drive Assembly Precautions

Separate assembly instructions distinguish the D32/D38 and D39 final drives. A specific warning addresses housing deflection when the carrier shaft bolt is tightened without the housing cover installed, highlighting why assembly sequence matters.

Hydraulic Fault Isolation and Pump Service Limits

Cylinder drift and cycle-time checks help distinguish cylinder leakage from control valve, pump or relief-related faults, while the hydraulic schematic identifies blade and ripper circuits. Pump sections explain inspection and seal work but limit available service parts; damage to other components calls for replacement of the pump assembly.

Engine, Cooling and Electrical Scope

The cooling chapter describes the centrifugal water pump and provides radiator core, tank and fan service information. Internal engine overhaul belongs to the separate Engine Shop Manual, which is not included here; the electrical chapter likewise provides circuit information rather than component overhaul procedures.

Track Wear and Metal Face Seals

Wear tables distinguish dry sealed and lubricated track, while idler and roller measurements support assessment of reusable parts. Metal face seal instructions emphasize clean, undamaged mating faces and inspection criteria, addressing contamination and handling damage that can compromise sealing.

Selected Stall, Fastener and Idler Specifications

For the D39E-1 and D39P-1, the converter-only stall range is 1,850–2,080 rpm under the manual's full-throttle test conditions with coolant and oils at operating temperature. The final drive specification lists 190 Nm (140 lbf ft) for its 5/8NC mounting bolts, a fastener-specific value distinct from the other housing and sprocket bolts. Across all listed models, front-idler shaft-to-bushing diametral oil clearance is 0.203–0.330 mm (0.008–0.013 in), illustrating the dimensional checks supplied for component inspection.