Komatsu D150A-1 D155A-1 Dozer Service Manual | 1988-1992

Complete OEM shop manual for the 1988-1992 Komatsu D150A-1 and D155A-1 crawler dozers, covering engine overhaul, power train service, undercarriage repair, hydraulic system diagnostics, work equipment maintenance, and electrical systems. Everything a technician or owner needs to service and repair these heavy-duty Komatsu bulldozers. Delivered instantly as a fully searchable PDF compatible with any device.

• Adobe Acrobat (PDF) format
• Fully searchable
• Easily print any or all content
• Everything needed to repair & maintain your machine
• Troubleshooting instructions, wiring diagrams, and reference material

• Komatsu D150A-1 (Serial No. 8408 and up)
• Komatsu D155A-1 (Serial No. 15001 and up)

• General
• Engine - Structure and Function
• Engine - Testing and Adjusting
• Engine - Disassembly and Assembly
• Power Train - Structure and Function
• Power Train - Testing and Adjusting
• Power Train - Disassembly and Assembly
• Power Train - Maintenance Standard
• Undercarriage - Structure and Function
• Undercarriage - Disassembly and Assembly
• Undercarriage - Maintenance Standard
• Hydraulic System - Structure and Function
• Hydraulic System - Testing and Adjusting
• Hydraulic System - Disassembly and Assembly
• Hydraulic System - Maintenance Standard
• Work Equipment - Structure and Function
• Work Equipment - Testing and Adjusting
• Work Equipment - Disassembly and Assembly
• Work Equipment - Maintenance Standard
• Electrical System

• Complete engine disassembly and assembly procedures
• Carburetor, fuel system, and air cleaner diagnostics
• Electrical, ignition, and charging system procedures
• Cooling system inspection and maintenance
• Hydraulic system testing, pump repair, and control valve service
• Hydraulic cylinder inspection, seal replacement, and repair
• Drivetrain, final drive, and undercarriage service procedures
• Frame, chassis, and structural component service
• Troubleshooting charts and diagnostic workflows
• OEM specifications and torque tables
• High-resolution wiring and system diagrams

• We maintain thousands of reference guides.
• Message us. We can point you to the correct listing or post the one you're looking for.

• Thousands of satisfied customers
• Fast access to digital download
• Reliable post-sale support
• 60-day worry-free returns
• Consistent 5-star feedback and repeat buyers
• If you have any questions about compatibility, model coverage, or what this manual includes, message us anytime. We pride ourselves on exceptional customer service.

• Better than the hard copy I had.
• Less than 5 minutes after purchase I had already downloaded my manual. Great service.
• This was a life saver for a piece of equipment I bought that did not have the manuals.
• The manual was just what I needed to fix the problem.
• Exactly what I needed. Zero complaints.
• Treasure trove of information. Thank You.

Shipping

• Instant Digital Delivery

Returns

• If you're not fully satisfied, simply contact us for a no-hassle refund.