UPPERSTRUCTURE / Swing Device CAUTION: Ring gear (25) weight: 38 kg (85 lb) CAUTION: Motor (1) weight: 71 kg (157 lb) 33. Hoist motor (1) and align the matching marks made when disassembling. Install motor (1) to ring gear (23) with socket bolts (23) (8 used). 26. Install eyebolts (M12, Pitch 1.75 mm) (2 used) to the motor mounting thread part on ring gear (25). Hoist and install ring gear (25) on housing : 88 N m (9 kgf m, 65 lbf ft) : 10 mm (26) while aligning the matching marks made when disassembling. Tighten socket bolts (24) (12 used). : 17 mm : 430 N m (44 kgf m, 320 lbf ft) 27. Install the first stage carrier (21) assembly to the spline of second stage sun gear (20). IMPORTANT:
Check the direction to install first stage sun gear (2). 28. Install first stage sun gear (2) to the first stage carrier (21) assembly with the stepped side facing downward. 29. Wind the seal tape onto the thread part of pipe (33). Install pipe (33) to housing (26). Face pipe (33) downward. : 18 mm 30. Wind the seal tape onto drain plug (32). Install drain plug (32) to pipe (33). : 50 N m (5.1 kgf m, 37 lbf ft) 31. Add gear oil (15.7 L (4.15 US gal.)) into housing (26). 32. Apply liquid packing (THREEBOND #1215) onto the motor (1) mounting surface of ring gear (25). : 8 mm W2-6-19