Caterpillar GP30NT Forklift Engine Service Manual (99789-87100)

A Cat GP30NT is a counterbalanced LPG or gasoline forklift used for pallet work, loading, and yard moves. When one is due out tomorrow, the shop needs engine test data, adjustment steps, and correct assembly details, not an operator overview. This is the engine book of the set, aimed at the mechanic fixing the truck in-house and getting it back on its hour-meter schedule.

What this manual helps you do

• Check engine specifications, system operation, torque values, clearances, and service data.
• Trace fuel, cooling, lubrication, starting, charging, and ignition system faults.
• Follow testing and adjusting procedures for scheduled maintenance and running problems.
• Rebuild engine assemblies with disassembly, inspection, and assembly instructions.
• Verify repairs using the manual's troubleshooting guidance and adjustment procedures.

Who this is for

This suits a rental fleet mechanic, warehouse maintenance tech, plant maintenance team, dealer technician, or independent forklift shop working on Cat GP-series trucks. The companion chassis manual, also available, handles the truck systems around the engine, while this manual covers the engine work itself.

FAQ

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

A: You receive 9 PDF files split by section, totaling 230 pages. The files carry a real text layer, so you can search the manual and copy text when building a job plan or parts request.

Q: Does it fit my GP30NT and related variants?

A: Yes. The cover identifies K15, K21, K25, GP15N-GP35N, and GPE15N-GPE35N models, which includes the GP30NT range. That gives you the engine reference for this truck family.

Q: How does it fit the repair job?

A: Use it for engine specifications, systems operation, testing and adjusting, teardown, rebuild, torque values, and clearances. It gives the shop a working reference for diagnosis, scheduled service, and engine repairs.

With this manual, you can plan the job, verify adjustments, and return the GP30NT to service with the engine work documented.

Models covered by this manual

Caterpillar publication 99789-87100 is the factory engine service manual for the GP30NT. 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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