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WHEEL & TIRE GP 3728381 - Caterpillar



3728381 WHEEL & TIRE GP Caterpillar parts 434F, 444F WHEEL
Rating:
75
Alternative (cross code) number:
CA3728381
372-8381
3728381
Caterpillar 3728381 WHEEL & TIRE GP

Buy WHEEL & TIRE GP 3728381 Caterpillar genuine, new aftermarket tractor parts with delivery
BACKHOE LOADER,

Compatible equipment models: 3728381:

BACKHOE LOADER  434F   444F   Caterpillar
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Information:

Note: The darkened lines show air pressure and the arrows show the direction of air flow.Note: Air pressure switches (C) and (D) are activated when the service brakes are applied or when the retarder is used.Note: Secondary brake and parking brake pressure switch (A) is deactivated when the air control valve for the parking brake and the secondary brake air control valve are in the OFF position. The parking brakes are released.When the pedal on service brake air control valve (21) is pushed down, air pressure from the air tanks for the service brake and retarder (2) flows through service brake air control valve (21). The air pressure flows to the control passage of rear brake air relay valve (17). This allows supply air from air tanks (2) to flow through rear brake air relay valve (17) to rear air/hydraulic cylinder (19). The double check valve above the air/hydraulic cylinder closes the passages to brake air relay valve (18) for the Automatic Retarder Control (ARC). Oil pressure from the rear air/hydraulic cylinder (19) flows to the wheel brakes for the rear wheels. The oil pressure activates the brakes for the rear wheels.The air pressure that flows through service brake air control valve (21) also flows to front brake air control valve (20). When the front brake air control valve is in the OFF position, air is blocked from flowing to front brake air relay valve (4). The hydraulic caliper service brakes for the front wheels are not applied.When the pressure on the pedal of service brake air control valve (21) is released, the flow of air through service brake air control valve (21) is blocked. Air pressure between the control passages of brake air relay valve (17) and service brake air control valve (21) flows outward through an exhaust passage in service brake air control valve (21). Also, air pressure between the control passages of front brake air control valve (20) and service brake air control valve (21) flows outward through the exhaust passage in the service brake air control valve. The air pressure between brake air relay valve (17) and air/hydraulic cylinder (19) flows outward through an exhaust passage in brake air relay valve (17). The oil pressure that had applied the brakes returns to the air/hydraulic cylinder as the piston is drawn up by the spring in the air/hydraulic cylinder.The Service Brake Air Control Valve Is In The ON Position And The Front Brake Air Control Valve Is In The ON Position
Illustration 4 g00602990
(2) Air tanks for the service brake and the retarder (4) Brake air relay valve for the front brakes (8) Air/hydraulic cylinder (front) (17) Brake air relay valve for the rear brakes (18) Brake air relay valve for the Automatic Retarder Control (ARC) (19) Air/hydraulic cylinder (rear) (20) Front brake air control valve (21) Service brake air control valve (A) Secondary brake and parking brake pressure switch (C) Service brake and retarder pressure switch (D) Stop lights pressure switch (H) Standard air lines (I)

Caterpillar SIS machinery equipment:

Caterpillar SIS

Caterpillar parts catalog:

Caterpillar parts catalog
434F Backhoe Loader LDH00001-UP (MACHINE) POWERED BY C4.4 Engine
444F Backhoe Loader LJJ00001-UP (MACHINE) POWERED BY C4.4 Engine
444F Backhoe Loader Side Shift JXR00001-UP (MACHINE) POWERED BY C4.4 Engine
434F Backhoe Loader MTR00001-UP (MACHINE) POWERED BY C4.4 Engine
434F Backhoe Loader FLY00001-UP (MACHINE) POWERED BY C4.4 Engine
444F Backhoe Loader FBN00001-UP (MACHINE) POWERED BY C4.4 Engine


Parts wheel Caterpillar catalog:

3728394 WHEEL AS
416E, 416F, 422E, 422F, 428E, 428F, 432E, 432F, 434E, 434F, 442E, 444E, 444F
3728393 WHEEL AS
414E, 416E, 434E, 434F, 444F
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