Caterpillar GP25NT Forklift Engine Service Manual (99789-87100)

On a real warehouse floor, a Cat GP25NT moves pallets, loads, and materials through a full shift, and the engine has to be ready when the next customer arrives. Rental fleet mechanics, plant maintenance techs, dealer technicians, and independent forklift shops reach for this manual during scheduled service and in-house repairs. It gives you the engine information needed to test, adjust, rebuild, and return the truck to work.

What this manual helps you do

• Check engine specifications, operating systems, service data, torque values, and clearances.
• Trace fuel, cooling, lubrication, starting, charging, and related engine systems.
• Follow testing and adjusting procedures for scheduled maintenance and fault diagnosis.
• Rebuild engine assemblies with disassembly, inspection, and assembly procedures.
• Verify settings and replace service parts using the manual's workshop instructions.

Who this is for

This suits warehouse maintenance technicians, rental fleet mechanics, plant maintenance staff, dealer technicians, and independent forklift repair shops. It is the engine book of the set, while chassis, mast, hydraulic, steering, brake, and electrical truck work is in the companion chassis manual, also available.

FAQ

Q: What do I receive, and how is it organised?

A: You receive 8 PDF files split by section, with 210 pages total. The files support normal screen zoom and printing, and the real text layer lets you search and copy text.

Q: Does it fit my Cat GP25NT and related trucks?

A: Yes. The manual's cover identifies K15, K21, K25, GP15N through GP35N, and GPE15N through GPE35N applications, including the GP25NT. That puts your truck in the stated coverage.

Q: How does it fit the repair work I'm doing?

A: Use it for engine service, testing, adjustment, teardown, reassembly, and scheduled maintenance. Around my shop, that is the book I'd want beside the truck when an engine issue has to be resolved before dispatch.

With this manual, you can work through the engine side of the Cat truck using workshop procedures, service data, and adjustment information instead of guessing.

Models covered by this manual

Caterpillar publication 99789-87100 is the factory engine service manual for the GP25NT. The same publication covers 17 further forklift models: GP15ND, GP15NM, GP15NT, GP18ND, GP18NM, GP18NT, GP20CND, GP20CNT, GP20ND, GP20NM, GP20NT, GP25ND and 5 more. The cover also lists K15,, K21,, K25, K15, K21, GP15N-GP35N,, GPE15N-GPE35N. Check the model and serial number on your data plate before ordering.

Table of Contents:

• 99789-87100
  • How To Use This Manual
  • Engine Maintenance
  • Precautions
  • Lubrication System
  • Engine Outside Drawings
  • Adjustment Value

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