Removal And Installation Of Swing Motor And Swing Machinery Assembly - Komatsu PC88MR-10 Shop Manual

Removal and installation of swing motor and swing machinery
assembly
(PC88MR-J120-924-K-00-A)
Place the machine on a level ground and
lower the work equipment to the ground in a
stable posture.
Stop the engine, turn the battery disconnect
switch to OFF position, and remove the key.
(For details, see "Testing and adjusting",
"Handling battery disconnect switch".)
Set the lock lever in LOCK position.
Removal
(PC88MR-J120-520-K-00-A)
a Record the disconnected position of the hose
and wiring connector to avoid misplacing.
1. Remove cover (1).
2. Disconnect the following hoses from the swing
motor.
(2): MB port hose (band color: brown)
(3): T drain hose (band color: white/green)
(4): MA port hose (band color: white)
(5): S port hose
(6) B port hose (swing lock) (band color: red)
3. Remove mounting bolts (7) (11 pieces).
4. Install the forcing screws to "a" portions (2
locations), and disconnect swing motor and
swing machinery assembly (8) from the machine
body.
PC88MR-10
50 Disassembly and assembly
5. Sling swing motor and swing machinery
assembly (8), and remove it. [*1]
Swing motor and swing machinery
assembly (8):
90 kg
Installation
(PC88MR-J120-720-K-00-A)
Perform installation in the reverse order to
removal.
[*1]
Determine the position of the swing motor and
swing machinery assembly according to dowel
pin (9).
Swing machinery mating face:
Liquid gasket (LG-6)
Mounting bolt of swing motor and
swing machinery assembly (8):
333 to 372 Nm {34 to 38 kgm}
Power train system
50-111