Caterpillar GP20ND Forklift Engine Service Manual (99789-87100)

A Cat GP20ND moves pallet loads around a warehouse or yard, and the engine needs the same measured service work as any other production asset. This manual is for the technician who is testing, adjusting, repairing, or rebuilding the engine by the book, with service intervals and recorded results that stand up to an audit. It is the engine book of the set, while chassis, mast, hydraulics, and truck systems are covered in the companion chassis manual, also available.

What this manual helps you do

• Check engine specifications, service data, clearances, and operating systems.
• Trace engine faults through testing, adjustment, and diagnostic procedures.
• Follow disassembly and assembly procedures for engine components.
• Verify torque values and service settings during repair or overhaul.
• Replace engine parts and record adjustments using the specified workshop procedure.

Who this is for

This suits warehouse maintenance technicians, dealer technicians, independent forklift shops, plant maintenance teams, and rental fleet mechanics working on Cat GP-series trucks. It is a workshop service manual for the engine trade, with the companion chassis manual available for the rest of the truck.

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 real text layer allows searching and copying text, and the files support normal printing and on-screen zoom.

Q: Does it fit a GP20ND truck?

A: Yes. Publication 99789-87100 covers the GP15N through GP35N range, including GP20ND, along with GPE15N through GPE35N variants and K15, K21, and K25 engines.

Q: How does this fit the job I am doing?

A: Use it for engine servicing, fault diagnosis, adjustment, teardown, assembly, and verification. It gives a technician the workshop procedures and service data needed to work methodically and document the repair.

For a GP20ND engine job, this is the manual to have open at the bench or truck.

Models covered by this manual

Caterpillar publication 99789-87100 is the factory engine service manual for the GP20ND. The same publication covers 17 further forklift models: GP15ND, GP15NM, GP15NT, GP18ND, GP18NM, GP18NT, GP20CND, GP20CNT, GP20NM, GP20NT, GP25ND, GP25NT 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

Caterpillar Software

Caterpillar PDF Manuals