Komatsu D155A-6 Bulldozer Operation & Maintenance Manual (SN 85180 & Up) – PDF Download

Description

Komatsu D155A-6 Bulldozer Operation & Maintenance Manual – Serial Numbers 85180 and Up

This is the complete Komatsu D155A-6 Bulldozer Operation & Maintenance Manual, published by Komatsu (Form No. PEN00536-01) and covering machines with serial numbers 85180 and up. Whether you are running a D155A-6 on a jobsite, performing daily inspections, or planning major service work, this manual gives you the manufacturer’s own operating instructions, maintenance intervals, and safety requirements in a single downloadable PDF.

Written for operators, mechanics, and fleet managers who need the correct procedures and factory specifications rather than generic advice, this D155A-6 Operation & Maintenance Manual covers everything from daily walk-around checks to the 8000-hour service items on the undercarriage and hydraulic systems.

File Details

• Manual Type: Operation & Maintenance Manual
• Brand: Komatsu
• Model: D155A-6 Bulldozer
• Serial Numbers: 85180 and up
• Engine: Komatsu SAA6D140E-5 diesel engine
• Language: English
• File Format: PDF
• Document Number: PEN00536-01
• Publication Date: 05-11 (May 2011)

Chapters Covered

This D155A-6 bulldozer manual follows the factory structure, moving from safety and general information through operation, maintenance, specifications, and attachments:

• Before Reading This Manual – how to use the manual, SI units, serial number table
• Safety Information – signal words, hazard identification, safety labels and their exact positions on the machine
• Introduction – use of machine, front/rear/left/right directions, visibility from the operator’s seat (proximity and 12m circumference)
• Safety Labels – complete pictogram positions including operation, reverse travel, leaving the operator’s seat, hot water, track tension, accumulator, seat belt, cable handling, falling, rotating parts, jump start, blast site
• General Precautions Common to Operation and Maintenance – safe operation, machine understanding, protective equipment, fire prevention, getting on/off the machine, emergency exit from the cab, protective structures (ROPS/FOPS), unauthorized modification, engine running indoors
• Precautions for Operation – jobsite investigation, loose ground, high-voltage cables, visibility, signalman communication, asbestos dust, warning tags, cold-weather starting, booster cables, checks before operation, travel forward/reverse, travel on slopes, parking, transportation, towing
• Precautions for Maintenance – warning tags, clean workplace, authorized personnel, two-worker rule when engine running, high-place work, working under machine, proper tools, welding, battery handling, high-temperature coolant/oil, high-pressure oil and fuel, high-pressure grease, recoil spring, accumulator, compressed air, air conditioner refrigerant, waste disposal
• Operation – machine monitor and switches, gauges and meters, multi-gauge, service meter, ECO indicator, function switches, air conditioner, walk-around check, daily checks, starting engine (normal and cold weather), warming-up operations, breaking-in, stopping engine, moving machine, gear shifting, automatic and manual shift modes, steering, shifting forward/reverse, stopping, parking, cold weather operation, long-term storage, troubleshooting (fuel run-out, battery discharge, booster cable starting, other trouble)
• Maintenance – guides to maintenance, outlines of service, wear parts list, recommended fuel/coolant/lubricant, standard tightening torques, periodic replacement of safety critical parts, maintenance schedule chart (initial 250 hours, every 250/500/1000/2000/4000/8000 hours, when required), detailed service procedures for all intervals
• Specifications – operating weight, engine horsepower, overall dimensions, travel speeds
• Attachments, Options – track shoe options, ripper point selection, KOMTRAX equipped machines, general precautions
• Index – full alphabetical index for quick navigation

What This D155A-6 Manual Gives You

This is not a short owner’s booklet – it is the full factory Operation & Maintenance Manual that Komatsu ships with the D155A-6. It documents every routine maintenance interval from the initial 250-hour service through the 8000-hour items, with the exact oil capacities, torque values, wear limits, and adjustment procedures that Komatsu specifies for this machine. The maintenance schedule chart alone maps out what needs doing at 250, 500, 1000, 2000, 4000, and 8000 hours, so you can plan service without guesswork.

For daily operation, the manual covers the machine monitor in detail – emergency monitors, caution monitors, basic check monitors, the multi-gauge selection, service meter and clock, ECO indicator, and the function switches used to change modes and settings. The air conditioner section explains automatic and manual operation, vent selection, RECIRC/FRESH control, and the sunlight sensor, so you can keep the cab comfortable in any climate. The gear shift section documents both automatic (dozing) and manual (ripping) modes, including how to set the preset speed range at neutral and how to change the maximum set speed while traveling.

Troubleshooting chapters are included for electrical system issues, electronic control system error codes (E01 through E04), chassis problems, and engine problems. Each entry lists the main causes and the correct remedy, which is often enough to get a machine back to work without waiting for a service call.

Dozing and Ripping Coverage

Because the D155A-6 is a bulldozer, the manual explains work possible using the bulldozer: dozing, cutting into hard or frozen ground, ditching, felling trees, removing stumps, pushing, smoothing, and ripper operation. The ripper section covers effective digging angles, when to tilt the shank back, how to dig up boulders, and the correct operating method for ripping passes. The undercarriage life section gives practical tips for selecting track shoes, adjusting track tension, and inspecting idler clearance – all of which extend the life of the most expensive wear parts on the machine.

Safety Content

Safety is integrated throughout, not tacked on at the end. Safety labels are documented with their part numbers and positions, and the manual uses the standard DANGER, WARNING, CAUTION, and NOTICE signal words. The general precautions section covers the two-worker rule for maintenance when the engine is running, the warning tag procedure, high-pressure oil and fuel hazards, accumulator handling, recoil spring safety, and the correct way to release pressure in the hydraulic circuit. This is the same safety information Komatsu requires operators and technicians to know before working on the machine.

Who This Manual Is For

This Komatsu D155A-6 Operation & Maintenance Manual is for owners, operators, maintenance technicians, and fleet managers responsible for D155A-6 bulldozers in the 85180-and-up serial range. If you need the correct daily inspection checklist, the right oil capacity for the power train case, the torque for a track shoe bolt, or the procedure to bleed air from the fuel circuit after running out of diesel, this manual has it. It is equally useful as a reference for planning scheduled maintenance and as a training document for new operators learning the machine’s controls and monitoring systems.

Why the Correct Procedures Matter

The D155A-6 uses a Komatsu SAA6D140E-5 electronically controlled high-pressure fuel injection engine. Komatsu explicitly warns that using low-viscosity fuel with poor lubricating ability can markedly reduce durability, and that non-genuine fuel filters can allow dust into the injection system. The maintenance section reflects this, specifying genuine filters and correct intervals. Following the manual’s procedures protects the engine, hydraulic system, power train, and undercarriage – and helps avoid the unplanned downtime that comes from missed service or incorrect adjustments.

Torque values in the manual are given as target and service limit, so you can tell when a fastener is still within specification and when it needs replacement. Wear limits for the cutting edges, end bits, ripper points, and track components are included so you can measure and decide on replacement before a part fails in the field. Adjustment values for track tension, idler clearance, and brake pedal travel are stated with the exact procedure to check them.

IMAGES PREVIEW

Instant PDF Delivery

This is a downloadable PDF manual – no physical book, no shipping, and no waiting. After payment you can open it immediately on a computer, tablet, or phone, and print the pages you need for the workshop or the cab. The PDF is organized with a full index so you can jump straight to the section you need, whether that is the machine monitor, the hydraulic tank breather, the ripper point selection procedure, or the 2000-hour service list. Keep a copy on every device and print a fresh set of pages whenever you service the machine.