Caterpillar CT610 Trucks, CT630 Trucks description of the catalogue:

CT610 Truck, CT630 Truck Hydraulic Clutch -
Systems Operation, Disassembly and Assembly, and Specifications

CT610 Truck, CT630 Truck Cab Service -
Systems Operation, Disassembly and Assembly, and Specifications

CT610 Truck, CT630 Truck ADR-35 Braking System -
Systems Operation, Disassembly and Assembly, and Specifications

CT610 Truck, CT630 Truck Radiator/Cooling System -
Systems Operation, Disassembly and Assembly, and Specifications