Caterpillar GP20CND Forklift Engine Service Manual (99789-87100)

A Cat GP20CND counterbalanced truck earns its keep moving pallets and loads around a warehouse, plant, or yard. When the engine needs testing, adjustment, teardown, or rebuilding, this is the book a plant maintenance technician, dealer technician, or independent forklift shop reaches for. It gives you the engine procedures and service data to do the job by the book, which matters when service intervals, alarm codes, and repair records are audited. This is the engine book of the set.

What this manual helps you do

• Check engine specifications, system operation, service intervals, and fault symptoms.
• Test and adjust engine systems using the stated workshop procedures.
• Follow disassembly and assembly procedures for engine components and assemblies.
• Verify torque values, clearances, and other service data during repair.
• Troubleshoot running, starting, and engine-system problems before replacing parts.

Who this is for

This suits warehouse maintenance technicians, rental fleet mechanics, dealer technicians, and independent forklift repair shops handling Cat GP20CND and related trucks. The companion chassis manual, also available, covers the truck chassis, mast, hydraulics, steering, brakes, and other forklift systems.

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 has a real text layer, so you can search it, copy text, print pages, and work with the files at different zoom levels.

Q: Which truck variants does it fit?

A: The cover identifies K15, K21, K25, GP15N-GP35N, and GPE15N-GPE35N models, including the GP20CND. Match the truck and engine designation on the data plate to those model details before starting work.

Q: How does it fit the repair job?

A: Use it for engine testing, adjustment, service data, teardown, and reassembly. It gives the workshop procedure and measurements needed for in-house repairs and documented maintenance.

With this manual, your shop can diagnose and repair the engine end of the truck with the procedure in front of the technician.

Models covered by this manual

Caterpillar publication 99789-87100 is the factory engine service manual for the GP20CND. The same publication covers 17 further forklift models: GP15ND, GP15NM, GP15NT, GP18ND, GP18NM, GP18NT, GP20CNT, GP20ND, 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
  • Specifications
  • Precautions
  • Lubrication System
  • Engine Outside Drawings
  • Adjustment Value

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