hitachi — REMOVE AND INSTALL FRONT ATTACHMENT (2-PIECE BOOM)

FRONT ATTACHMENT / Front Attachment 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. 6. Hoist and hold boom cylinder (1). Insert thrust plate (8). Install pin (4). Install boom cylinder (1) on both sides. 7. Install stopper (7) to pin (4) with bolt (6) and nuts (5) (2 used). (2 places on both left and right) 4 3 2 : 30 mm 1 : 550 N m (55 kgf m, 405 lbf ft) 8. Install lubrication pipe (2) to the rod side of boom cylinder (1). (2 places on both left and right) W1V1-04-01-003 9 7, 8 5, 6 : 19 mm : 30 N m (3.0 kgf m, 22 lbf ft) 9.

Apply grease to the rod side, bottom side and boom foot side of boom cylinder (1) (2 used). Lubrication Position Boom Cylinder Rod Side (2 Places) W1V1-04-01-005 Boom Foot Side 1 Boom Cylinder Bottom Side W1V1-04-01-011 W4-1-16