UNDERCARRIAGE / Travel Device 11. Install special tool (ST 3136) to bearing nut (11). Tighten bearing nut (11) by using a torque wrench. ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: IMPORTANT: There is an identification groove on one half of third stage planetary gear (37). Install third stage planetary gear (37) with the identification groove facing to cover (49). 15. Install needle bearings (40, 41) (4 used for each) to third stage planetary gears (37) (4 used). Clamp third stage planetary gear (37) with thrust plates (36, 42) (4 used for each). Install third stage planetary gear (37) to third stage carrier (17). 16.
Align the spring pin (38) holes on third stage carrier (17) and pins (39) (4 used). Install pin (39). IMPORTANT: Install spring pin (38) with the slit of pin (38) facing to the end of pin (39). 17. Tap and install spring pins (38) (4 used) into third stage carrier (17) and pin (39) by using a round bar. Round Bar Dia.: ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: 8 mm (0.32 in) ZAXIS500LC-3, 520LCH-3: 10 mm (0.39 in) : 500 N m (51 kgf m, 369 lbf ft) ZAXIS500LC-3, 520LCH-3 : 780 N m (80 kgf m, 575 lbf ft) ST 3136 W1JB-03-02-003 12. Hold and rotate sprocket (14) both clockwise and counterclockwise 4 to 5 turns. Tap drum (8) by using a plastic hammer in order to secure appropriate play. 13.
Perform steps 11 and 12 twice and tighten bearing nut (11) to the specified torque. ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: 38 39 : 500 N m (51 kgf m, 369 lbf ft) ZAXIS500LC-3, 520LCH-3 Slit W178-02-06-002 : 780 N m (80 kgf m, 575 lbf ft) IMPORTANT: If the spline of lock plate (12) is not align with that of housing (5), tighten bearing nut (11) further in the tightening direction in order to align with the spline. 14. Apply LOCTITE #262 to bolt (13). Install lock plate (12) to bearing nut (11) with bolts (13) (2 used). ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: : 19 mm : 90 N m (9 kgf m, 66 lbf ft) ZAXIS500LC-3, 520LCH-3 : 19 mm : 71 N m (7.2 kgf m, 52 lbf ft) W3-2-25