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SEAL-PISTON 2333732 - Caterpillar



2333732 SEAL-PISTON Caterpillar parts SEAL
Rating:
46
Alternative (cross code) number:
CA2333732
233-3732
2333732
Caterpillar 2333732 SEAL-PISTON
Weight: 0.09 pounds 0 kg.

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Information:


Illustration 1 g00421143
Transmission hydraulic control
(1) Upshift solenoid
(2) Downshift solenoid
(3) Lockup clutch solenoid For the speed positions that require direct drive, lockup solenoid (3) must be activated after upshift solenoid (1) or downshift solenoid (2) is deactivated. The position of the transmission gear switch and the ground speed signal from the transmission speed sensor are used to determine the correct time in order to activate lockup clutch solenoid (3).Pump oil from the transmission charging pump section sends oil to the lockup clutch and synchronizing valve. This pump oil goes through the pressure reduction valve in the lockup clutch and synchronizing valve. The pressure reduction valve allows some of the pump oil to flow past the spool and into the pilot oil line. The pilot oil flows to the relay valve in the lockup clutch and synchronizing valve.Lockup clutch solenoid (3) sends signal oil to the relay valve in the lockup clutch and synchronizing valve. This allows the pilot oil to flow past the relay valve. The oil then flows to the modulation reduction valve in the lockup clutch and synchronizing valve. The modulation reduction valve allows pump oil to flow to the lockup clutch. The lockup clutch will stay in direct drive until the signal pressure is removed by lockup clutch solenoid (3). When signal pressure is removed the spool in the relay valve blocks the pilot oil.


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