Air System
空气系统为电子空气电磁阀提供大约 700 ± 14 kPa (100 ± 2 psi) 的高压空气。 自动定时器（控制）用来启动空气电磁阀。 从而使空气系统压力流过泵信号管路和空气供应管路。 高压空气随后流向调节器。 调节器不可调，且空气压力被限定到 448 ± 21 kPa (65 ± 3 psi) 。 此经过调节的空气压力用来驱动润滑泵。
Caterpillar Information System:
446D Backhoe Loader Axles, Differential and Brakes Axle (Front)
259B3 Compact Track Loader, 247B3 and 257B3 Multi Terrain Loaders and 216B3, 226B3, 236B3, 242B3 and 252B3 Skid Steer Loaders Machine Systems Gear Pump - Assemble
247B, 247B2, 257B and 257B2 Multi Terrain Loaders Machine Systems Gear Pump - Disassemble
247B, 257B, 267B, 277B and 287B Multi Terrain Loaders and 216B, 226B, 232B, 236B, 242B, 246B, 248B, 252B, 262B and 268B Skid Steer Loaders Auxiliary Hydraulic Electronic Control System Switch (Two Speed)
3508B Engine for Caterpillar Built Machines Electronic Control System Operation
914G Compact Wheel Loader and IT14G Integrated Toolcarrier Circuit Breakers - Reset
914G2 and IT14G2 Compact Wheel Loaders Cab Air Filter - Clean/Replace
M325D L MH and M325D MH Material Handlers Machine System Stick Cylinder - Material Handler
267B, 277B and 287B Multi Terrain Loaders Machine Systems Track Drive
M325D L MH and M325D MH Material Handlers Machine System Stick
3508B Engine for Caterpillar Built Machines Radiator and Cooling System - Test
267B, 277B and 287B Multi Terrain Loaders Machine Systems Track Drive
2003/11/24 Special Instruction for Testing Oil Coolers {1378}
247B, 257B, 267B, 277B and 287B Multi Terrain Loaders and 216B, 226B, 232B, 236B, 242B, 246B, 248B, 252B, 262B and 268B Skid Steer Loaders Auxiliary Hydraulic Electronic Control System Switch (Interlock Override)
773E Off-Highway Truck and 775E Quarry Truck Automatic Lubrication System Electrical System
773E Off-Highway Truck and 775E Quarry Truck Automatic Lubrication System Lubrication System
773E Off-Highway Truck and 775E Quarry Truck Automatic Lubrication System General Information
773E Off-Highway Truck and 775E Quarry Truck Automatic Lubrication System General Information
773E Off-Highway Truck and 775E Quarry Truck Automatic Lubrication System Automatic Lubrication System Troubleshooting
773E Off-Highway Truck and 775E Quarry Truck Automatic Lubrication System Visual Inspection
914G2 and IT14G2 Compact Wheel Loaders Cooling System Coolant (ELC) - Change
773E Off-Highway Truck and 775E Quarry Truck Automatic Lubrication System Automatic Lubrication System - Test
773E Off-Highway Truck and 775E Quarry Truck Automatic Lubrication System Electrical System - Test
773E Off-Highway Truck and 775E Quarry Truck Automatic Lubrication System Lubrication Injectors - Adjust