Caterpillar GC25N Forklift Service Manual (99719-6C130)

A Cat GC25N is a cushion-tire gasoline/LPG counterbalanced forklift used for pallet work on warehouse floors, loading areas, and plant yards. This manual is for the mechanic turning that truck around, chasing faults, and completing scheduled service before the next rental. In my experience, it earns its keep when you need workshop procedures rather than an operator's handbook.

What this manual helps you do

• Trace electrical circuits, switches, starting faults, charging faults, and control wiring.
• Check and adjust the brake, steering, cooling, fuel, hydraulic, and powershift systems.
• Follow removal, inspection, repair, and reassembly procedures for the drive unit, axles, mast, forks, and hydraulic components.
• Diagnose operating faults using the service data, troubleshooting guidance, and adjustment procedures.
• Rebuild or service the K25 engine using the matching engine publication included in the set.

Who this is for

This suits a warehouse maintenance tech, rental fleet mechanic, plant maintenance team, dealer technician, or independent forklift repair shop. It is a workshop service manual for the Cat counterbalanced lift truck trade, with the operator handbook and parts catalog available as companion volumes.

FAQ

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

A: You receive 24 PDF files containing two separate Cat publications, split by section, with 687 pages total. The files carry a real text layer, so you can search and copy text, then print or zoom the material at the workstation.

Q: Which trucks and serial numbers does it fit?

A: The cover lists GC20N, GC25N, GC28N, GC30N, GC33N, and K25, with GC25N serial coverage AT90-10121 to 30120. That gives you a clear match point before starting work.

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

A: Use it for in-house repairs, scheduled maintenance, fault tracing, adjustments, and component rebuilding on this truck family. The paired chassis and K25 engine publications keep the truck systems and engine service information together.

For a GC25N in that serial range, this is the set to use when the truck needs workshop-level service, repair, or return-to-rental preparation.

Models covered by this manual

Caterpillar publication 99719-6C130 is the factory service manual for the GC25N, serial range AT90-10121 to 30120. The same publication covers 4 further forklift models: GC20N, GC28N, GC30N, GC33N. The cover also lists K25. Check the model and serial number on your data plate before ordering.

Table of Contents:

• MPa
• L (0.17 gal.)
• L (1.96 gal.)
• V (Blue)
• V (Dark Gray)
• L/Y
• W / L
• L / W
• Released

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