LINES GP-COUPLER 2253742 - Caterpillar

Illustration 1 g00693899
(1) Differential lock pedal
Do not engage the differential lock with one wheel spinning.Reduce engine rpm, until the wheel stops spinning, before depressing the differential lock pedal.
Illustration 2 g00693902
(2) Solenoid valve (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.
Solenoid valve (2) controls the supply of air to a quick release valve and the piston (5) in differential lock cylinder (3) .The differential lock is electric over air. The electric switch (1) is located near the base of the steering column. Solenoid valve (2) is located on the rear of the differential.
Illustration 3 g00702544
Differential (3) Differential lock cylinder (4) Jaw (5) Piston (6) JawThe air pressure will force piston (5) upward. This will move jaw (4) against jaw (6). When the pedal is released, the supply passage is closed. This allows air that is between solenoid valve (2) and the quick release valve to flow through the exhaust passage. Air pressure inside differential lock cylinder (3) will exit through the quick release valve.