Diagram and Real Location of Power Shift Transmission Caterpillar D9R

The D9R transmission is located at the rear of the machine for easy removal and installation. The three-speed forward, three-speed reverse planetary power shift transmission transfers power from the engine to the final drives. The transmission contains three hydraulically controlled speed clutches and two hydraulically controlled directional clutches. The operator manually selects the direction and […]

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See Monitor Panel Caterpillar D9R

The instrument panel (through Machine Serial No. 7TL1-851 and 8BL1-1052) includes the Computerized Monitoring System (CMS) display used for monitoring the machine systems. The instrument panel also includes the individual system switches, action light, a key start switch, action horn (not visible), service hourmeter, a vacuum fluorescent display panel, and system fuses and circuit breakers. […]

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HEUI system components (1)

The atmospheric pressure sensor (1) is installed on the hydraulic supply pump group adapter and is vented to the atmosphere. A foam block below the sensor helps prevent the entry of dirt into the sensor. The sensor performs the following functions: Ambient pressure measurement for automatic altitude compensation and automatic air filter compensation. Absolute pressure […]

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