HOUSING-TORQUE CONVERTER 2433725 - Caterpillar

Power Flow
Illustration 1 g02001599
This is an example of the power flow for the all wheel drive. (1) Input shaft assembly (2) Forward input gear (3) Reverse idler input gear (4) Forward clutch pack (5) Forward clutch piston (6) Reverse idler shaft (7) Reverse clutch piston (8) Reverse clutch pack (9) Reverse idler driven gear (10) Reverse input gear (11) Countershaft (12) Input gear for front wheel drive (13) Caged roller bearing (14) First speed gear (15) Gear for the front wheel drive (16) Clutch pack for front wheel drive (17) Clutch piston for front wheel drive (18) Output shaft for front wheel drive (19) First speed and second speed synchronizer assembly (20) Second speed gear (21) Third speed gear (22) Third speed and fourth speed synchronizer assembly (23) Fourth speed gear (24) Output shaft (25) Forward drive gear (26) Drive gear (27) Implement pump drive shaft
Illustration 2 g01621982
(28) All wheel drive switchThe output shaft for front wheel drive (18) may be engaged at any time by activating all wheel drive switch (28) that is located on the left side of the front dash panel. The switch may be activated when the vehicle is stopped or while the vehicle is moving. All wheel drive attachments include the following parts: gear for front wheel drive (15), clutch pack for front wheel drive (16) and output shaft for front wheel drive (18). The output shaft for front wheel drive (18) connects the transmission with the steerable front drive axle.When the operator activates all wheel drive switch (28) on the front dash panel, the all wheel drive solenoid is energized. A passage opens in order to allow oil under pressure to flow to the output shaft for front wheel drive (18). The oil flows through the output shaft for front wheel drive (18) in order to engage the clutch pack for front wheel drive (16). The input gear for front wheel drive (12) transmits power to the gear for front wheel drive (15). Power from the gear for front wheel drive (15) is then transmitted through the clutch pack for front wheel drive (16) to the output shaft for front wheel drive (18). The output shaft of the front wheel drive is connected to the drive shaft of the front axle.