hitachi — Assemble Center Hinge

BODY (UPPERSTRUCTURE) / Center Hinge Assemble Center Hinge 1. Continuously apply LOCTITE #262 onto the outer circumference of dust seal (18). Lightly tap and insert dust seal (18) into cap (17) by using a hammer. Wipe out the stick-out LOCTITE #262 by using a waste. Install dust seal (18) to cap (23) in the same way. IMPORTANT: Check the direction of dust seal (18). Install dust seal (18) with the wider rubber side facing to the unpainted side of caps (17, 23). 6. Install caps (7, 19) and shim (8) to the upper hinge part of front frame (25). Apply LOCTITE #262 onto bolts (21) (6 used). Install caps (7, 19) to front frame (25) with bolts (21) (6 used). ZW220 : 17 mm :

88 N m (9 kgf m, 65 lbf·ft) ZW250 : 24 mm : 224 N m (23 kgf m, 165 lbf·ft) 17, 23 18 7. Tap the space among caps (7, 19) and dust seals (9) (2 used) by using an iron nail. 8. Install caps (17, 23) and shim (8) to the lower hinge part of front frame (25). Apply LOCTITE #262 onto bolts (16) (6 used). Install caps (17, 23) to front frame (25) with bolts (16) (6 used). Face the lip to the outer side (painted side) of the cap W4GB-02-03-005 2. Insert dust seals (9) (2 used) into caps (7, 19) in the same way. 3. Insert bearing (10) into the upper hinge part of front frame (25). 4. Add grease through grease fitting (24) into the inside of bearing (10) while rotating bearing (10). 5.

Insert bearing (10) into the lower hinge part of front frame (25). Add grease through grease fitting (24). : 17 mm 9. Tap the space among caps (17, 23) and dust seals (18) (2 used) by using an iron nail. : 88 N m (9 kgf m, 65 lbf·ft) W2-3-7