Caterpillar EC25LN Forklift Service Manual (99759-6K110)

An EC25LN is an electric counterbalanced truck used to move pallets around warehouses, loading areas, and plant floors. In my shop, this is the kind of manual a rental fleet mechanic or plant technician pulls up when a truck needs scheduled service or a fault needs tracing before tomorrow's dispatch. It gives you workshop procedures for the truck systems, including the traction motor, controller, hydraulics, steering, brakes, mast, and wiring.

What this manual helps you do

• Trace electrical faults through the truck wiring and control circuits.
• Diagnose traction motor, controller, hydraulic, steering, and brake problems.
• Follow removal, inspection, adjustment, and refitting procedures for major assemblies.
• Troubleshoot mast, fork, drive, and hydraulic system complaints.
• Verify service data while carrying out hour-meter maintenance and repairs.

Who this is for

This suits warehouse maintenance technicians, dealer technicians, independent forklift shops, and rental fleet mechanics working on Cat electric counterbalanced trucks. The companion operator handbook and related chassis or system manuals are also available for day-to-day operation and additional truck reference work.

FAQ

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

A: You receive a two-publication Cat manual set, delivered as 16 PDF files split by section, rather than one booklet. The PDFs carry a real text layer, so you can search and copy text, print pages, and zoom in on diagrams and procedures.

Q: Which trucks does it fit?

A: The stated model coverage is EC15N, EC18N, EC20N, EC25N, EC25EN, EC25LN, and EC30N. For an EC25LN, that is the correct model family and power type.

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

A: It is a workshop service manual for repair, diagnosis, adjustment, and scheduled maintenance, rather than an operator handbook or parts catalog. It gives the working mechanic the procedures needed to return an electric counterbalanced truck to service.

Yes, this is the right manual set for an EC25LN shop repair job. You can use it to diagnose faults, service the truck, and turn it around with fewer surprises.

Models covered by this manual

Caterpillar publication 99759-6K110 is the factory service manual for the EC25LN. The same publication covers 6 further forklift models: EC15N, EC18N, EC20N, EC25EN, EC25N, EC30N. Check the model and serial number on your data plate before ordering.

Table of Contents:

• N·m
• V, 48 V
• Turning on key switch in RUN mode
• Setting SUO #1 (checking and changing data)
• N-m (3.5 kgf-m) 34.8 ft-lb
• N-m (7.1 kgf-m) 51.4 ft-lb
• N·m for UVW
• Pump Motor Over-current (Transistor Control Type Only) …. 2 – 31
• Pump Contactor Fault (Contactor Control Type Only) ………. 2 – 40
• Pump Motor Open (Transistor Control Type Only) …………….. 2 – 45

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