4442080 STICK & BEARING AS Caterpillar parts
336F L
Rating:
Alternative (cross code) number:
CA4442080
444-2080
4442080
CA4442080
444-2080
4442080
Weight: 2533 pounds 1148 kg.
EXCAVATOR,
Compatible equipment models: 4442080:
Number on catalog scheme:
9
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Caterpillar parts catalog:
Information:
Implement
Many of the following problems can create diagnostic codes or event codes in Cat ET. These codes can help find the root cause of the problem. Cat ET should be used to retrieve the logged codes and active codes. Implement Function Is Slow
The pump has too much wear.
The engine speed is below high idle speed.
There is a leak in the system. Visually inspect the system for leaks in the system.
The pilot oil pressure is low.
The high pressure cut-off setting on the pump is not correct.
The margin pressure setting on the pump is not correct.
The inlet screen for the pump is plugged. Drain the hydraulic tank and inspect the inlet screen for contamination.
The solenoid actuators on the implement control valve are not operating correctly.
The seals in the lift and tilt cylinders are leaking.
The control valve is not operating correctly. Inspect the components of the valve for damage or for contamination.
The load sense relief valve is not adjusted correctly.
The Dead Engine Lower valve is open.All Implement Functions Will Not Operate
Hydraulic lockout switch on the right dash is in the LOCK position. Move the switch to the UNLOCK position.
The pilot shut-off solenoid valve has failed or there is an electrical problem keeping the solenoid from energizing.
There is a joystick problem.
There is a problem with the pump. Possible problems are: broken shaft, broken drive coupler, or stuck stroking piston.
The oil level in the hydraulic tank is low. Check the hydraulic oil level.The Boom Will Not Operate In The Up Or Down Direction
If none of the other functions are operating correctly, Refer to "All Implement Functions Will Not Operate".
The lift cylinders have damage. Replace the cylinders.
The mechanical loader linkage has damage. Repair the damage.
There is a failure in one of the seals of the lift cylinder.
The main control spool is stuck. Disassemble the valve and inspect the main control spool.
There is an electrical problem.The Boom Will Lower But Not Raise.
The pilot-operated check valve in the lift valve is not working correctly. Disassemble the lift control valve.
The solenoid actuator for Lower is not working.The Bucket Will Not Rack Back Or Dump
None of the other functions are operating correctly. Refer to "All Implement Functions Will Not Operate".
The cylinder has damage. Repair the damage.
The line relief valves are not operating correctly.
The seals in the cylinder are leaking.
The main control spool is stuck. Disassemble the valve. Inspect the main control spool and inspect the springs.
There is an electrical problem.The Dead Engine Lower Function Does Not Operate With A Dead Engine
The pilot pressure accumulator precharge has been lost.
The pilot pressure accumulator (hydraulic pressure) has bled down.
The solenoid valve for Lower function is not functioning correctly.
The pilot shut-off valve is not functioning correctly.The Implements Drift Downward
The Dead Engine Lower ball valve is open.
The cylinder seals have been damaged.
There is an external hose leak. Visually inspect the implement hydraulic system for leaks.
There is a problem with the low leak check valves in the implement control valve.The Boom Will Not Remain In Float
Pilot accumulator precharge pressure has been lost.
Worn hystat charge
Many of the following problems can create diagnostic codes or event codes in Cat ET. These codes can help find the root cause of the problem. Cat ET should be used to retrieve the logged codes and active codes. Implement Function Is Slow
The pump has too much wear.
The engine speed is below high idle speed.
There is a leak in the system. Visually inspect the system for leaks in the system.
The pilot oil pressure is low.
The high pressure cut-off setting on the pump is not correct.
The margin pressure setting on the pump is not correct.
The inlet screen for the pump is plugged. Drain the hydraulic tank and inspect the inlet screen for contamination.
The solenoid actuators on the implement control valve are not operating correctly.
The seals in the lift and tilt cylinders are leaking.
The control valve is not operating correctly. Inspect the components of the valve for damage or for contamination.
The load sense relief valve is not adjusted correctly.
The Dead Engine Lower valve is open.All Implement Functions Will Not Operate
Hydraulic lockout switch on the right dash is in the LOCK position. Move the switch to the UNLOCK position.
The pilot shut-off solenoid valve has failed or there is an electrical problem keeping the solenoid from energizing.
There is a joystick problem.
There is a problem with the pump. Possible problems are: broken shaft, broken drive coupler, or stuck stroking piston.
The oil level in the hydraulic tank is low. Check the hydraulic oil level.The Boom Will Not Operate In The Up Or Down Direction
If none of the other functions are operating correctly, Refer to "All Implement Functions Will Not Operate".
The lift cylinders have damage. Replace the cylinders.
The mechanical loader linkage has damage. Repair the damage.
There is a failure in one of the seals of the lift cylinder.
The main control spool is stuck. Disassemble the valve and inspect the main control spool.
There is an electrical problem.The Boom Will Lower But Not Raise.
The pilot-operated check valve in the lift valve is not working correctly. Disassemble the lift control valve.
The solenoid actuator for Lower is not working.The Bucket Will Not Rack Back Or Dump
None of the other functions are operating correctly. Refer to "All Implement Functions Will Not Operate".
The cylinder has damage. Repair the damage.
The line relief valves are not operating correctly.
The seals in the cylinder are leaking.
The main control spool is stuck. Disassemble the valve. Inspect the main control spool and inspect the springs.
There is an electrical problem.The Dead Engine Lower Function Does Not Operate With A Dead Engine
The pilot pressure accumulator precharge has been lost.
The pilot pressure accumulator (hydraulic pressure) has bled down.
The solenoid valve for Lower function is not functioning correctly.
The pilot shut-off valve is not functioning correctly.The Implements Drift Downward
The Dead Engine Lower ball valve is open.
The cylinder seals have been damaged.
There is an external hose leak. Visually inspect the implement hydraulic system for leaks.
There is a problem with the low leak check valves in the implement control valve.The Boom Will Not Remain In Float
Pilot accumulator precharge pressure has been lost.
Worn hystat charge
Parts stick Caterpillar catalog:
3439466
STICK & BEARING AS
336E, 336E L, 336E LN, 336F L
336E, 336E L, 336E LN, 336F L
3439475
STICK & BEARING AS
336E, 336E L, 336E LN, 336F L
336E, 336E L, 336E LN, 336F L
3671572
STICK & BEARING AS
336E, 336E H, 336E L, 336E LH, 336E LN, 336F L
336E, 336E H, 336E L, 336E LH, 336E LN, 336F L
3439472
STICK & BEARING AS
336E, 336E L, 336F L
336E, 336E L, 336F L
3671570
STICK & BEARING AS
336E, 336E H, 336E L, 336E LH, 336F L
336E, 336E H, 336E L, 336E LH, 336F L
3715498
STICK & BEARING AS
336E L, 336E LH, 336F L
336E L, 336E LH, 336F L
4473615
STICK AS-HOE
374F L
374F L