FRONT ATTACHMENT / Front Attachment 4. Place the tube end of boom cylinder (1) on a stand of 1 m (39.4 in) height. Start the engine. Operate the boom lever and retract boom cylinder (4). In order not to extend the rod, pass a wire through the rod hole and secure the rod to the cylinder tube. 5. Stop the engine. Remove boom cylinder (1). Refer to the Remove Boom Cylinder section on W4-2-10. 6. Remove other boom cylinder (1) in the same procedures. 7. After stopping the engine, push the air bleed valve. Release any pressure in the hydraulic oil tank and remove the cap. Completely release the pressure in the hydraulic circuit.
Refer to the Hydraulic Circuit Pressure Release Procedure section on W4-1-1. 1 Wire W178-02-11-274 Air Bleed Valve W1V1-04-01-008 W4-1-11