UPPERSTRUCTURE / Swing Device Disassemble Swing Device CAUTION: Swing device weight: 384 kg (850 lb) 1. Install eyebolts (M12, Pitch 1.75 mm) (2 used) to the swing motor. Hoist the swing device. CAUTION: Motor (1) weight: 71 kg (157 lb) 5. Put the matching marks at the jointed part between motor (1) and ring gear (25), between ring gear (25) and housing (26). Remove socket bolts (23) (8 used). Hoist and remove motor (1). Eyebolt Mounting Positions NOTE: Insert the screwdriver between motor (1) and ring gear (25). Float motor (1) for easy removal. 6. Remove first stage sun gear (2). Remove the first stage carrier (21) assembly from ring gear (25). : 10 mm W1V7-02-06-006 1.
Place the swing device on bracket (ST 5100). Secure the swing device onto the bracket by using the bolts (M22, Pitch 2.5 mm) (2 used). Secure the bracket on a workbench in order to reduce the reaction force. CAUTION: Ring gear (25) weight: 38 kg (85 lb) 7. Remove socket bolts (24) (12 used). Install eyebolt (M12, Pitch 1.75 mm) to the motor mounting thread part on ring gear (25). Hoist and remove ring gear (25) from housing (26). : 32 mm Swing Device 17 mm NOTE: THREEBOND has been applied on the jointed surfaces between housing (26) and ring gear (25). Attach a screwdriver onto the notch between jointed portion. Float it for easy removal. ST 5100 W1V7-02-06-001 3. Remove drain plug (32).
Drain off oil from the swing device. CAUTION: The second stage carrier (18) assembly weight: 32 kg (70 lb) 8. Remove second stage sun gear (20) and the second stage carrier (18) assembly from housing (26). : 8 mm 4. Remove pipe (33) from housing (26). : 18 mm W2-6-5