DOC-20230111-WA0038.

UPPERSTRUCTURE / Swing Device
Disassemble Swing Motor
• Be sure to read “Precautions for Disassembly and
Assembly” thoroughly on page W1-1-1 before
starting the disassembly work.
IMPORTANT: Do not disassemble relief valves (30)
(2 used).
1. Remove relief valves (30) (2 used) from cover
(26).
: 27 mm
IMPORTANT: Measure and record dimension A
between the top surfaces of piston
(17) and housing (9). This dimension
is necessary for assembly work.
8. Remove springs (18) (15 used) from housing (9).
Remove piston (17) using supports and bolts
(M6).
Spanner or so
Bolt (M6)
2. Remove plugs (35) (2 used) from cover (26).
Remove springs (32) (2 used) and poppets (31) (2
used).
: 14 mm
3. Remove socket bolts (12) (2 used). Remove block
(11) from housing (9).
:5 mm
IMPORTANT: Do not remove pins (37) (2 used)
from cover (26).
4. Remove socket bolts (36) (4 used). Remove
cover (26) from housing (9).
: 10 mm
Support
A
17
9
IMPORTANT: Make matching marks on valve plate
(21) and cover (26).
5. Remove retaining ring (19) from cover (26).
Remove needle bearing (20) and valve plate (21).
6. Remove bushings (38) (2 used) and teflon rings
(39) (2 used) from valve plate (21).
7. Remove O-ring (25), bushings (22) (4 used),
teflon rings (23) (4 used) and scrowaves (24) (4
used) from cover (26).
W152-02-06-006
9. Remove O-ring (16) from piston (17). Remove O-
ring (8) from housing (9).
10. Remove plates (15) (2 used) and friction plates
(14) (2 used) from housing (9).
IMPORTANT: Take care not to damage the upper
side (valve plate side) of rotor (13).
11. Remove the rotor (13) assembly from housing (9).
W2-6-19