Caterpillar DP115 Forklift Service and Schematic Manual (99799-80120)

Yes, this is the right workshop set for a Cat DP115 counterbalanced diesel forklift. That truck handles pallet movement and loading work on a plant floor or yard, and the manual is for the technician fixing it when production time is tight. In my experience, plant maintenance teams reach for it to trace faults, set adjustments, and rebuild truck systems safely.

What this manual helps you do

• Trace electrical faults through wiring diagrams and system schematics.
• Diagnose problems in the power train, transmission, axles, brakes, steering, and hydraulics.
• Follow procedures for mast, fork, lifting, and hydraulic component service.
• Adjust and replace service components using the workshop's repair information and specifications.
• Troubleshoot the truck alongside its matching engine service information.

Who this is for

This suits a warehouse maintenance tech, plant maintenance lead, dealer technician, independent forklift shop, or rental fleet mechanic. It is written for the forklift repair trade, with the operator handbook and companion chassis or engine manuals available where those subjects are handled separately.

FAQ

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

A: You receive 4 Cat publications delivered as 45 PDF files, split by section, with 1,183 pages total. The files have a real text layer, so you can search and copy text, then zoom or print pages for shop work.

Q: Which trucks and serials does it fit?

A: The cover identifies DP100, DP115, DP135, and DP150, with DP115 serial coverage beginning at 4DP-10011-up. That makes it a direct fit for a DP115 within that marked range.

Q: Does it fit an in-house repair job?

A: Yes. It is a service and schematic set for fault diagnosis, adjustments, teardown, inspection, and reassembly on a counterbalanced Cat truck. It gives a mechanic a practical reference for a limited weekend repair window.

For a Cat DP115 in the stated serial range, this is the manual set to use for workshop troubleshooting and repair.

Models covered by this manual

Caterpillar publication 99799-80120 is the factory service and schematic manual for the DP115, serial range 4DP-10011-up. The same publication covers 3 further forklift models: DP100, DP135, DP150. Check the model and serial number on your data plate before ordering.

Table of Contents:

• 99799-80120 – Chassis & Mast Service Manual
  • Foreword
  • General Information
  • Cooling System
  • Electrical System
  • Power Train
  • Speed Powershift Transmission
  • Front Axle And Reduction Differential
  • Rear Axle
  • Brake System
  • Steering System
  • Hydraulic System
  • Mast And Forks
  • Hydraulic Fork Positioner
  • Hydraulic Side Shifters
  • Service Data

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