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ALARM GP-TRAVEL 2278074 - Caterpillar



2278074 ALARM GP-TRAVEL Caterpillar parts 325C ALARM
Rating:
57
Alternative (cross code) number:
CA2278074
227-8074
2278074
Caterpillar 2278074 ALARM GP-TRAVEL

Buy ALARM GP-TRAVEL 2278074 Caterpillar genuine, new aftermarket tractor parts with delivery
EXCAVATOR,

Compatible equipment models: 2278074:

EXCAVATOR  325C   Caterpillar
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Pilot Control Valve Circuits
Oil from pilot pump (47) flows through pilot line (73), pilot filter (70) and pilot line (69) to pilot manifold (62). When the hydraulic activation control lever is shifted to the UNLOCKED position, the engine and pump controller energizes the hydraulic activation solenoid valve (45). The pilot oil then shifts valve (44). The pilot oil now flows through valve (44), pilot line (35), and pilot line (60). The pilot oil now flows to pilot control valve (8), pilot control valve (49), pilot control valve (40), and solenoid valve (5) for implements, swing and travel in order to perform machine operations. When the joysticks and/or travel levers/pedals are moved, the pilot oil flows to main control valve (21) in order to control the machine functions.
Illustration 4 g00938804
Pilot lines at the main control valve (top view)When joystick (40) and/or joystick (49) are operated, the pilot control valves send pilot pump oil through the pilot lines to pilot ports at the main control valve in order to shift the spools in the main control valve. Refer to Illustration 4 and Table 1 for the location of the pilot lines and machine operations.
Table 1
Pilot line     Control Valve     Machine Operation    
(86)     Boom

Caterpillar SIS machinery equipment:

Caterpillar SIS

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