KNOB 1173787 - Caterpillar

Illustration 1 g00350582
End View of Differential Group (1) Air cylinder (2) Ring gear (3) Differential housing
Illustration 2 g00350586
Differential Group (1) Air cylinder (2) Ring gear (3) Differential housing (4) Drive pinion for the differential (5) Spider (6) Piston (7) Side gear (8) Clutch jaw that is splined to the axle (9) Bearing (10) Clutch jaw that is splined to the differential housing (11) Thrust washers (12) Bearing (13) Side gear (14) Pinions (15) Thrust washers (16) Bearings (17) StopThe differential sends the same amount of torque to each wheel. The differential will allow the inside wheel to have a slower rotation in relation to the outside wheel. Also, the differential will allow the inside wheel to stop in relation to the outside wheel. The differential still sends the same amount of torque to each wheel.The output shaft of the transmission is fastened to differential pinion (4) with splines. The differential pinion turns ring gear (2) of the differential. This ring gear is fastened to differential housing (3). The differential and bevel gear case is divided into two sections. The differential and bevel gear has four pinions (14) on spider (5) and two side gears (7) and (13). The four pinions engage at 90 degree angles with the two side gears. The side gears are fastened to the inner end of the axles.When the machine is moving in a straight direction, the same amount of torque on each axle holds the pinions so the pinions will not turn on the spider. This gives the same effect as if both of the wheels are driven by the same shaft. When the force that is sent to the wheels is different, the forces are sent to the opposite sides of the differential. This action will turn the pinions. The rotation of the pinions allow the inside wheel to have a slower rotation in relation to the outside wheel. Also, the rotation of the pinions allow the inside wheel to stop in relation to the outside wheel. This moves the machine through the turn under full power.The hubs of the differential housing are on tapered roller bearings (9) and (12). Adjustments can be made to the bearings. The pinions also turn on tapered roller bearings (16). The side gears turn against thrust washers (11) which take the end thrust against the differential housing.Oil is thrown around the inside of the differential for lubrication of the inside components. The flat surfaces on the spider allow the oil to go to bearings (16) for the pinions and thrust washers (15) .The location of stop (17) is in the differential and bevel gear case. The stop prevents any side movement of the bearing cap when the machine is in operation.Differential Lock
Personal injury or death can result from limited steering control.Engaging the differential lock when the machine is moving can limit steering control.Do not engage differential lock when machine is moving at high speed because steering control will be limited.
Illustration 3 g00735766
(18) Differential lock controlWhen one drive wheel has