Description

Komatsu D58E-1B, D58P-1B, D58E-1, D58E-1A, D58P-1 1998 Workshop Manual

Time lost chasing wrong specs on a Komatsu dozer costs real money. If you’re trying to dial in fuel injection timing or set valve clearance on a D58E-1B, you need factory numbers — not guesswork.

The OEM Komatsu D58E-1B, D58P-1B, D58E-1, D58E-1A, D58P-1 1998 Workshop Manual is the real deal. 584 pages of Komatsu’s own procedures, torque specs, and troubleshooting logic for the D58E and D58P series bulldozers. Every page comes from the same source that trained the dealer techs.

What Makes This Komatsu Workshop Manual Different?

Aftermarket manuals cut corners. They reprint old editions without revision marks. The D58E-1B manual includes a list of revised pages (see page 00-2) so you know exactly which sections have been updated. That matters when you’re pulling a cylinder head and the valve clearance spec changed between production runs. The PDF you get here is a literal copy of the factory binder, not a third-party summary.

Engine System Coverage and Troubleshooting Charts

Section 10 of the manual dives into the ENGINE system — structure and function first, then testing and adjusting. The troubleshooting section uses what Komatsu calls “S mode” charts. Sixteen fault categories cover everything from poor starting (S-1) to excessive vibration (S-16). For a no-start condition on your D58E-1, the manual breaks S-2 into three sub-cases: engine does not turn, engine turns but no exhaust smoke (fuel not injected), and exhaust smoke comes out but engine does not start (fuel being injected). Each sub-case has a decision tree. That level of detail saves hours of trial and error. The fuel system, valve clearance adjustment, and compression pressure measurement procedures are all there, with the required tool lists.

7 Major Systems Covered in 584 Pages

The manual covers seven major sections: General (01) includes fluid specs and weight tables; Engine (10) we already covered; Power Train (20) includes the torque converter, Torqflow transmission, steering clutch, and final drive — the manual details both the torque converter and the Manual Transmission system for joystick control specifications; Undercarriage (30) covers track frame and carrier roller maintenance; Hydraulic System (60) provides testing and adjusting for pressures and flow; Work Equipment (70) covers blade and ripper controls; Electrical System (80) includes the starting motor and alternator removal/installation procedures. For steering clutch and brake piping, refer to the Manual Transmission section for hydraulic system diagrams.

Each system has its own testing, disassembly, and maintenance standard subsections — the same structure Komatsu dealer shops use.

Get the Right Valve Clearance and Fuel Injection Timing

Page 12-1 opens the “Testing and Adjusting” section for the engine. You get the exact standards for valve clearance adjustment, compression pressure measurement, fuel injection timing test, and fan belt tension. The manual lists the required special tools — no guessing which socket or puller you need. If you’re working on a D58P-1B and the engine lacks power, section S-6 walks you through fuel system checks step by step. The torque specs for cylinder head bolts and injection pump mounting are given in the disassembly pages later in section 13.

Torque Specs and Fluid Capacities: Factory Data

Page 01-1 includes the Table of Fuel, Coolant and Lubricants — the exact Komatsu-approved fluids for the D58P-1B. Don’t guess the oil weight. The manual also gives the weight table for each configuration. For torque values, the engine disassembly section (13) lists tightening torques for the cylinder head, oil cooler, water pump, and more. These are the numbers Komatsu stamped in the factory, not a Chinese reprint. Using aftermarket specs risks stripped threads or gasket leaks.

Is this a PDF format?

Yes. You get the full 584-page factory PDF delivered to your account.

Will this manual help with a no-start condition on my D58E-1?

Absolutely. The troubleshooting section (S mode) dedicates 16 fault categories to the engine system alone. For example, S-2 ‘Engine does not start’ breaks into three sub-cases: engine does not turn (starter circuit), engine turns but no exhaust smoke (fuel not injected), and exhaust smoke but no start (fuel injected but not firing). Each sub-case has a decision chart with check points like fuel shutoff lever position, nozzle holder condition, and injection pump timing. Combined with the testing procedures for compression pressure and fuel injection timing on page 12-1, you can systematically rule out causes rather than throwing parts at it. This is the same diagnostic path a Komatsu dealer tech uses.

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If you’re serious about keeping that D58E-1B running right, access the factory manual. It’s the only way to get the genuine Komatsu procedures on your bench.