3913968 LINK AS-TRACK Caterpillar parts
D8T
Rating:
Alternative (cross code) number:
CA3913968
391-3968
3913968
CA3913968
391-3968
3913968
Weight: 2932 pounds 1329 kg.
TRACK-TYPE TRACTOR,
This part in 9 request:
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This information for suppliers only!
2024-08-29
2024-08-29
2023-11-08
2023-02-21
2023-02-07
2020-04-01
2018-08-17
2018-07-30
2017-03-14
Compatible equipment models: 3913968:
Number on catalog scheme:
3
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Information:
Probable Causes of Power Train Problems
Problem: The transmission does not operate in any speed or the transmission slips in all speeds.Probable causes:
The transmission fuse is missing or broken.
There is a problem in the electrical circuit for the transmission.
The system voltage is low.
The oil pressure is low. This may be caused by any of the following conditions:
The oil level is low.
There is a restriction in the oil flow circuit or a dirty oil strainer.
The oil pump has failed.
Air leaks on the inlet side of the pump.
There is oil leakage inside the transmission (worn seals around the clutch piston).
Torque converter inlet relief valve (2) is not adjusted correctly. Torque converter inlet relief valve (2) is stuck open.
There is a torque converter failure.
There is a mechanical failure in the transmission.
Clutch discs and clutch plates are excessively worn.
The transmission neutralizer limit switch is not operating. Problem: The transmission overheats.Probable causes:
The coolant level in the radiator is low.
The machine is being used for the wrong application. There is too much torque converter slip, which is caused by too much load.
An incorrect transmission gear is being used for the load that is on the machine. Shift to a lower gear.
The temperature gauge is faulty.
The oil level is too high or too low.
The oil cooler or oil lines are restricted.
The clutch slips too much. This may be caused by any of the following conditions:
Low oil pressure. Refer to “Problem: The transmission does not operate in any speed or the transmission slips in all speeds”.
A clutch is damaged.
Oil flow is low. This may be caused by pump wear or by leakage in the hydraulic system.
There is air in the oil. This may be caused by air leaks on the intake side of the pump.
Torque converter inlet relief valve (2) is stuck open. This causes low oil flow through the torque converter.
The clutch or clutches are not fully released. (This is called clutch drag.) This may be caused by any of the following conditions:
Clutch plates or clutch discs are warped.
A return spring is broken or weak.
A clutch solenoid modulating valve is stuck at a partial pressure. Problem: There is pump noise that is not normal.Probable causes:
A loud noise at short intervals indicates foreign material in the transmission hydraulic system.
A constant loud noise indicates pump failure.
There is air at the inlet side of the pump. Problem: There is noise in the transmission that is not normal.Probable causes:
Gears are damaged.
The teeth of the clutch plates are worn and/or the teeth of the clutch discs are worn.
Clutch plates are slipping and the clutch discs are making noise.
Other transmission components may be worn or damaged. Problem: The transmission operates in FORWARD only.Probable causes:
Number 1 REVERSE clutch solenoid valve (6) is inoperative.
There is a problem in the electrical circuit.
The REVERSE clutch is not engaged or the REVERSE clutch slips. This may be caused by any of the following conditions:
There is low oil pressure due to leaking piston seals.
The clutch discs and clutch plates have too much wear.
Clutch components are broken.
Number 2 FORWARD
Problem: The transmission does not operate in any speed or the transmission slips in all speeds.Probable causes:
The transmission fuse is missing or broken.
There is a problem in the electrical circuit for the transmission.
The system voltage is low.
The oil pressure is low. This may be caused by any of the following conditions:
The oil level is low.
There is a restriction in the oil flow circuit or a dirty oil strainer.
The oil pump has failed.
Air leaks on the inlet side of the pump.
There is oil leakage inside the transmission (worn seals around the clutch piston).
Torque converter inlet relief valve (2) is not adjusted correctly. Torque converter inlet relief valve (2) is stuck open.
There is a torque converter failure.
There is a mechanical failure in the transmission.
Clutch discs and clutch plates are excessively worn.
The transmission neutralizer limit switch is not operating. Problem: The transmission overheats.Probable causes:
The coolant level in the radiator is low.
The machine is being used for the wrong application. There is too much torque converter slip, which is caused by too much load.
An incorrect transmission gear is being used for the load that is on the machine. Shift to a lower gear.
The temperature gauge is faulty.
The oil level is too high or too low.
The oil cooler or oil lines are restricted.
The clutch slips too much. This may be caused by any of the following conditions:
Low oil pressure. Refer to “Problem: The transmission does not operate in any speed or the transmission slips in all speeds”.
A clutch is damaged.
Oil flow is low. This may be caused by pump wear or by leakage in the hydraulic system.
There is air in the oil. This may be caused by air leaks on the intake side of the pump.
Torque converter inlet relief valve (2) is stuck open. This causes low oil flow through the torque converter.
The clutch or clutches are not fully released. (This is called clutch drag.) This may be caused by any of the following conditions:
Clutch plates or clutch discs are warped.
A return spring is broken or weak.
A clutch solenoid modulating valve is stuck at a partial pressure. Problem: There is pump noise that is not normal.Probable causes:
A loud noise at short intervals indicates foreign material in the transmission hydraulic system.
A constant loud noise indicates pump failure.
There is air at the inlet side of the pump. Problem: There is noise in the transmission that is not normal.Probable causes:
Gears are damaged.
The teeth of the clutch plates are worn and/or the teeth of the clutch discs are worn.
Clutch plates are slipping and the clutch discs are making noise.
Other transmission components may be worn or damaged. Problem: The transmission operates in FORWARD only.Probable causes:
Number 1 REVERSE clutch solenoid valve (6) is inoperative.
There is a problem in the electrical circuit.
The REVERSE clutch is not engaged or the REVERSE clutch slips. This may be caused by any of the following conditions:
There is low oil pressure due to leaking piston seals.
The clutch discs and clutch plates have too much wear.
Clutch components are broken.
Number 2 FORWARD
Caterpillar SIS machinery equipment:
Caterpillar parts catalog:
Parts link Caterpillar catalog:
D8R, D8R II, D8T
1306366
LINK
D10R, D10T, D10T2, D11R, D11T, D8R, D8R II, D8T, D9R, D9T
D10R, D10T, D10T2, D11R, D11T, D8R, D8R II, D8T, D9R, D9T
8E4506
LINK-TRACK-LH
D8N, D8R, D8R II, D8T
D8N, D8R, D8R II, D8T
8E4505
LINK-TRACK-RH
D8N, D8R, D8R II, D8T
D8N, D8R, D8R II, D8T
D8N, D8R, D8R II, D8T
8E4059
LINK-TRACK MASTER
D8N, D8R, D8R II, D8T
D8N, D8R, D8R II, D8T
2393341
LINK AS
D8R, D8T
D8R, D8T
3045680
LINK-TRACK
D8R, D8T
D8R, D8T
2564902
LINK AS
D8R, D8T
D8R, D8T
2611175
LINK AS-WIPER
D10T, D11T, D8T, D9T
D10T, D11T, D8T, D9T
2611176
LINK AS
D10T, D11T, D8T, D9T
D10T, D11T, D8T, D9T
2981192
LINK GP-GRAPPLE
GSH15, GSH15-60, GSH22B, GSH9, GSH9B
GSH15, GSH15-60, GSH22B, GSH9, GSH9B
2400837
LINK GP-STEERING FRAME LOCK
904B, 904H
904B, 904H
322 LN, 322B LN, OEMS
1413245
LINK GP-TRACK
PM-465
PM-465
1941134
LINK AS-TRACK
311C, 315B, 315B L, 315C, 315D L, 316E L, 317, 318D L, 318D2 L
311C, 315B, 315B L, 315C, 315D L, 316E L, 317, 318D L, 318D2 L
6I9527
LINK AS-TRACK
315C, 939, 939C, D5C, D5C III, D6R
315C, 939, 939C, D5C, D5C III, D6R
211B, 215, 215B, 215C, 215D
1495959
LINK GP-STABILIZER
844, 844H, 844K
844, 844H, 844K
2841458
LINK GP-STEERING
773F, 775F
773F, 775F