Komatsu D85EX-15 and D85PX-15 Bulldozer Shop Manual (SEBM029108)

SEBM029108 covers the D85EX-15 and the low-ground-pressure D85PX-15, two versions of Komatsu's 28-tonne class dozer with the SA6D125E-3 engine.

Fits

D85EX-15 from serial 10001 and D85PX-15 from serial 1001.

Quick facts

• Manual Number: SEBM029108
• Models: D85EX-15, D85PX-15
• Serials: 10001 / 1001 and up
• Engine: SA6D125E-3
• Machine Type: Bulldozer
• Format: PDF, 936 pages

What's in it

After the general specs, weight table and fluids, section 10 covers structure, function and maintenance standards for the power train, torque converter, transmission, HSS steering, brakes, final drive, undercarriage, hydraulics, work equipment and electrical system.

Section 20 is testing and adjusting, with the standard values, pressure checks, adjustments and troubleshooting. Section 30 covers disassembly and assembly of the main components, and section 90 has the hydraulic and electrical circuit diagrams.

The HSS (hydrostatic steering system) is what sets this generation apart. When a D85 won't turn evenly or loses power in a turn, the HSS pages and pressure checks are where to start. Dozer owners and contractors will also use the final drive and undercarriage sections a lot, since those are the big wear items.

Table of contents

• 01 General - specs, weight table, fuel, coolant and lubricants
• 10 Structure, function and maintenance standard - power train, torque converter, transmission, HSS steering, brakes, final drive, undercarriage, hydraulics, work equipment, electrical
• 20 Testing and adjusting - standard values, pressure checks, adjustments and troubleshooting
• 30 Disassembly and assembly - removal, installation and rebuild of the main components
• 90 Others - hydraulic and electrical circuit diagrams

Good to know

A tip from shops that use these books every day: read the structure and function pages for a system before you start testing it. Knowing how the valves and circuits are meant to work makes the test results much easier to read. The standard values then tell you whether a reading is normal, borderline or out of spec, and the wear limits decide whether a part goes back in.

Before you buy

The two models start from different serial numbers. Check your plate.

PDF, 936 pages, English. Download link straight after checkout. We're an independent seller with no link to Komatsu.