Caterpillar GP35NM Forklift Engine Service Manual (99789-87100)

Yes, this is the engine service manual for the Cat GP35NM and related GP-series counterbalanced trucks. These trucks move palletized loads around warehouse floors and yards, and this book is for the engine work that keeps them running. Plant maintenance technicians, dealer technicians, and independent forklift shops use it when they need workshop procedures rather than operating instructions. It is the engine book of the set, with engine specifications, operation, testing, adjustment, teardown, assembly, torque values, and clearances.

What this manual helps you do

• Trace engine systems and understand how they operate on the truck.
• Test and adjust engine components using workshop procedures and service data.
• Diagnose running, starting, fuel, cooling, lubrication, and related engine faults.
• Disassemble and assemble engine components during repair or overhaul work.
• Verify torque values, clearances, and adjustment requirements during reassembly.

Who this is for

This suits a warehouse maintenance tech, plant maintenance lead, dealer technician, independent forklift repair shop, or rental fleet mechanic handling a weekend repair window. The trade is forklift service, with the companion chassis manual available for chassis, mast, hydraulic, electrical, and drive-system work.

FAQ

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

A: You receive 9 PDF files split by section, with 230 pages total. The set carries a real text layer, so you can search it, copy text, print pages, and zoom while working from the screen.

Q: Does it fit my truck variant?

A: The cover identifies K15, K21, K25, GP15N through GP35N, and GPE15N through GPE35N models, including the GP35NM range. Match your truck model to that group.

Q: How does it fit my repair job?

A: Use it for engine testing, adjustment, repair, and rebuilding when the truck is out of warranty or lacks documentation. It gives the workshop data needed to plan and complete engine work.

For a GP35NM engine repair, this is the book to have beside the truck.

Models covered by this manual

Caterpillar publication 99789-87100 is the factory engine service manual for the GP35NM. 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
  • Specifications
  • Precautions
  • Lubrication System
  • Engine Outside Drawings
  • Adjustment Value

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