Caterpillar GP18K MC Forklift Service and Schematic Manual (99719-61120)

A Cat GP18K MC is a gasoline or LPG counterbalanced truck for moving palletized loads around a warehouse, plant, or yard. I reach for this service manual when a truck is down and the repair has to happen in-house, often during a short weekend window. It gives the maintenance tech a workshop reference for tracing faults, making adjustments, and rebuilding truck systems safely.

What this manual helps you do

• Trace wiring and electrical faults through the truck schematics.
• Diagnose starting, charging, control, and operating problems.
• Follow procedures for the power train, brakes, steering, hydraulics, mast, and forks.
• Adjust and replace service components using the truck's repair procedures and service data.
• Rebuild or troubleshoot the engine and related truck systems with the included companion publication.

Who this is for

This suits a warehouse maintenance tech, plant maintenance mechanic, dealer technician, independent forklift shop, or rental fleet mechanic working on the GP18K MC trade. The engine service manual is included as the companion volume, while the operator handbook and chassis manual are also available for their related jobs.

FAQ

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

A: You receive 16 PDF files, 349 pages total, split by section. The files can be viewed, printed, and zoomed as PDF documents.

Q: Which GP18K MC trucks does it cover?

A: It covers serial groups ET13D-55001-up, ET14C-55001-up, ET31A-50001-up, ET16B-55001-up, ET31A-75001-up, and ET16B-75001-up. Match your truck's model and serial information before starting the repair.

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

A: This is the workshop service and schematic set for diagnosing and repairing a Cat GP18K MC, including truck systems and the engine material supplied with the set. It is the manual to have beside the truck when the repair needs more than routine operator checks.

Yes, this is the right set for a covered Cat GP18K MC when you need workshop repair procedures and schematics.

Models covered by this manual

Caterpillar publication 99719-61120 is the factory service and schematic manual for the GP18K MC. The same publication covers 9 further forklift models: DP15K MC, DP18K MC, DP20K MC, DP30K MC, GP15K MC, GP20K MC, GP25K MC, GP30K MC, GP35K MC. The cover also lists GP35K, DP35K, GP15K, DP15K, GP18K, DP18K, GP20K, DP20K, GP25K, DP25K, GP30K, DP30K, GP15K,, GP18K,, GP20K,, GP25K,. Check the model and serial number on your data plate before ordering.

Table of Contents:

• 99719-61120 – Chassis, Mast & Options Service Manual
  • Foreword
  • General Information
  • Cooling System
  • Electrical System
  • Power Train
  • Powershift Transmission
  • Front Axle and Reduction Differential
  • Rear Axle
  • Brake System
  • Steering System
  • Hydraulic System
  • Mast and Fork
  • Service Data
  • Options

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