Caterpillar DP50CNB Forklift Service and Operator Manual (99739-6B110)

A Cat counterbalanced truck like this moves palletized loads around a warehouse, plant, or rental yard, with diesel power and a powershift drive system. I reach for this kind of manual when a truck is due out tomorrow and the shop needs to find a fault, set an adjustment, or rebuild a component. It is written for working maintenance, not just daily operation.

What this manual helps you do

• Trace electrical faults through wiring, switches, and starting or charging circuits.
• Check and adjust the brake, steering, cooling, hydraulic, and powershift systems.
• Follow removal, inspection, repair, and reassembly procedures for the mast, forks, axles, and drive unit.
• Diagnose operating problems using service data, troubleshooting steps, and fault information.
• Rebuild or service the matching diesel engine using the included engine publication.

Who this is for

This suits a rental fleet mechanic, warehouse maintenance tech, plant maintenance team, dealer technician, or independent forklift repair shop. It is the right trade reference for scheduled maintenance, repairs, and component work; the operator handbook and companion chassis material are also available where applicable.

FAQ

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

A: You receive an 8-publication set delivered as 53 PDF files, split by section, with 2,091 pages total. The PDFs can be searched, copied from, printed, and zoomed for shop use.

Q: Does it fit my truck?

A: Yes, if your truck is a DP50CNB covered by serial range CT19F-80001-99999. The cover also lists GP40N, DP40NB, GP45N, DP45NB, GP50CN, DP50CNB, GP50N, DP50NB, GP55N, DP55NB, and TB45.

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

A: This is a workshop-level service and operator set for diagnosing, adjusting, and repairing the truck. It gives your shop the reference material needed to turn a working Cat back around.

If your DP50CNB falls in that serial range, the answer is yes. You get the full multi-publication set for shop repairs, maintenance, and engine work.

Models covered by this manual

Caterpillar publication 99739-6B110 is the factory service and operator manual for the DP50CNB, serial range CT19F-80001-99999. The same publication covers 8 further forklift models: DP45NB, DP50NB, DP55NB, GP40N, GP45N, GP50CN, GP50N, GP55N. The cover also lists DP40NB, TB45. Check the model and serial number on your data plate before ordering.

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