FRONT ATTACHMENT / Front Attachment REMOVE AND INSTALL FRONT ATTACHMENT (2-PIECE BOOM) IMPORTANT: Release any pressure in the hydraulic oil tank before doing any work. (Refer to BLEED AIR FROM HYDRAULIC OIL TANK on W1-4-1.) Preparation 1. Park the machine on a solid, level surface. Fully retract the bucket and arm cylinders and lower the bucket onto the ground. Removal 1. Remove lubrication pipe (2) from the adapter (3) at the boom cylinder (1) rod side. (2 places on both left and right) 4 3 : 19 mm 2 CAUTION: Boom cylinder (1) weight: 290 kg 640 lb) 2. Hoist and hold the boom cylinder (1). Remove nut (5), bolt (6) and stopper (7) from boom cylinder (1) rod front pin (4).
(2 places on both left and right) 1 W1V1-04-01-003 9 7, 8 5, 6 : 30 mm CAUTION: Metal fragments may fly off when a hammer is used. Wear necessary protection, such as goggles, hard hats, etc in order to prevent personal injury. 3. By using a bar and hammer tap pin (4) into the position where thrust plate (8) on the first boom (9) side can be removed. Remove thrust plate (8). NOTE: When pin (4) is impossible to remove, start the engine and slightly operate the boom lever. Adjust the piston rod pin hole on boom cylinder (1) while hoisting / lowering the front attachment. W4-1-10