This manual covers the Caterpillar (CAT) Forklift Trucks, models DP15N, DP18N, and DP20N, equipped with the S4Q2 Diesel Engine. These internal combustion engine forklifts are designed for robust material handling in warehousing and logistics environments. The S4Q2 engine, known for its durability and efficiency, provides reliable power for these workhorses. Caterpillar forklifts are engineered with a focus on operator comfort and productivity, incorporating essential safety features to ensure secure operation in demanding industrial settings.

This comprehensive service repair manual provides detailed information for the maintenance and repair of your CAT Forklift Trucks. It covers all major systems, including the engine mechanical and electrical components, transmission, hydraulics, chassis, steering, and braking systems. Within its pages, you will find procedures for routine maintenance, in-depth troubleshooting guides, engine and component overhaul instructions, electrical diagnostics, and specifications for special tools. This manual is an indispensable resource for owners, mechanics, and technicians aiming to maintain the optimal performance and longevity of their DP15N, DP18N, or DP20N forklift.