This manual covers the Caterpillar DP15K AC and DP18K AC Forklift Lift Trucks, designed for efficient material handling in various industrial environments. These trucks are engineered for reliability and performance, featuring robust construction and advanced systems to ensure operational uptime. With load capacities of 1500 kg (3300 lbs) for the DP15K AC and 1800 kg (3960 lbs) for the DP18K AC, they are versatile tools for demanding applications. The internal combustion engines, available in Diesel or LPG variants and featuring water-cooled systems, provide dependable power for continuous operation. The purpose of this comprehensive Factory Service Repair Manual is to provide detailed information for the maintenance, repair, and servicing of your Caterpillar forklift. It includes essential technical specifications, routine maintenance procedures, troubleshooting guides, and diagnostic information. By following the instructions and guidelines within this manual, owners, technicians, and mechanics can ensure the optimal performance, safety, and longevity of their DP15K AC and DP18K AC lift trucks. The manual covers all aspects of service, from fluid types and capacities to lubrication points and drive system details.