SEAL-OIL 4B9051 - Caterpillar

The Transmission Operates In REVERSE Only
Probable causes include:
Number 2 FORWARD clutch solenoid is inoperative.
There is a problem in the electrical circuit.The FORWARD Clutch Is Not Engaged Or The FORWARD Clutch Slips
Probable causes include:
Low oil pressure due to leaking piston seals.
The clutch discs and clutch plates have too much wear.
Clutch components are broken.The Transmission Does Not Operate In FIRST SPEED FORWARD Or In FIRST SPEED REVERSE
Probable causes include:
Number 6 speed clutch solenoid FIRST SPEED is inoperative.
There is a problem in the electrical circuit.The FIRST SPEED Clutch Is Not Engaged Or The FIRST SPEED Clutch Slips
Probable causes include:
Low oil pressure due to leaking piston seals.
The clutch discs and clutch plates have too much wear.
Clutch components are broken.The Transmission Does Not Operate In SECOND SPEED FORWARD Or In SECOND SPEED REVERSE
Probable causes include:
Number 5 speed clutch solenoid SECOND SPEED FORWARD is inoperative
There is a problem in the electrical circuit.The SECOND SPEED Clutch Is Not Engaged Or The SECOND SPEED Clutch Slips
Probable causes include:
Low oil pressure due to leaking piston seals.
The clutch discs and clutch plates have too much wear.
Clutch components are broken.The Transmission Does Not Operate In THIRD SPEED FORWARD Or In THIRD SPEED REVERSE
Probable causes include:
Number 4 speed clutch solenoid THIRD SPEED is inoperative.
There is a problem in the electrical circuit.The THIRD SPEED Clutch Is Not Engaged Or The THIRD SPEED Clutch Slips
Probable causes include:
Low oil pressure due to leaking piston seals.
The clutch discs and clutch plates have too much wear.
Clutch components are broken.The Transmission Does Not Operate In FOURTH SPEED FORWARD Or In FOURTH SPEED REVERSE
Probable causes include:
Number 3 speed clutch solenoid FOURTH SPEED is inoperative.
There is a problem in the electrical circuit.The FOURTH SPEED Clutch Is Not Engaged Or The FOURTH SPEED Clutch Slips
Probable causes include:
Low oil pressure due to leaking piston seals.
The clutch discs and clutch plates have too much wear.
Clutch components are broken.Pressure Is Low At Speed Clutch Pressure Tap P1 And Direction Clutch Pressure Tap P2 When The Machine Is Operated In All Directions And Speeds
Probable causes include:
The modulating relief valve is stuck.
Low oil pressure. Refer to the Problem: The transmission does not operate in any speed or the transmission slips in all speeds.
Springs of the load piston are weak or damaged. Springs or spacers are missing.Pressure Is Low At Direction Clutch Pressure Tap P2 When The Machine Is Operated In REVERSE Speeds
Probable causes include:
There is too much leakage in the piston seals of the REVERSE clutch.Pressure Is Low At Direction Clutch Pressure Tap P2 When The Machine Is Operated In FORWARD Speeds
Probable causes include:
There is too much leakage in the piston seals of the FORWARD clutch.Pressure Is High At Speed Clutch Pressure Tap P1 And Direction Clutch Pressure Tap P2 When The Machine Is Operated In All Directions And Speeds.
Probable causes include:
The modulating relief valve is sticking.
The load piston is stuck.
The wrong load piston springs or too many spacers are being used.
The bore for the modulating relief valve is worn.The Pressure Differential Between P1 and P2 Is Not Correct
Probable causes include:
Pressure differential valve is