11. EXPLANATION OF COMPONENTS 11.18.1 METHOD FOR RELEASING PRESSURE IN CONTROL CIRCUIT OF MACHINES EQUIPPED WITH ACCUMULATOR 1. Lower the work equipment to the ground. Close any attachment such as the crusher attachment jaws, etc. 2. Stop the engine. 3. Move the safety lock lever completely in the FREE position. Move the work equipment control lever and attachment control pedal full to the back and forth, right and left so as to release the pressure in the control circuit. 4. Move the safety lock lever to the lock position. Lock the control lever and attachment control pedal.
The pressure, however, will not be completely released, so when the accumulator is removed in the control circuit, gradually loosen the screws. Never stand in the oil ejection direction. PC450-ENG 2-37