This Service Repair Manual covers Clark P-25 and P-30 series forklifts, including models PWH-25, PWD-25, HWD-25, HWP-30, PWD-30, HWD-30, HWD-36, and PWD-36. These forklifts are engineered for maintaining, assembly, disassembly, servicing, diagnosing, and repairing operations within industrial environments. The manual details various systems including drive unit assembly, drive motor brakes, coast control, caster assembly, hydraulic systems, lift cylinders, lift linkage, load wheels, electric motors, contactors, and control panels, featuring both Contactor and EV-T5 control types. This comprehensive English-language manual provides step-by-step instructions, easy-to-follow diagrams, real photo illustrations, and schemes to guide users through maintenance and repair procedures. It includes planned maintenance, lubrication schedules, inspection guidelines, and detailed troubleshooting procedures, particularly for the EV-T5 control system. Electrical components, wiring schematics, component checking, control card adjustments, and sequence of operation are thoroughly covered, ensuring that owners, mechanics, and technicians have the necessary information to maintain the reliability and performance of their Clark forklifts.