Workshop Manual

UPPERSTRUCTURE / Swing Device
W2-6-31
IMPORTANT: When replacing the inner parts in
piston (13), replace them as an
assembly.
Install so that the ends of piston (13)
and casing (1) may be in the same
position.
13. Install ball (15), spring (14) and piston (13) to
casing (1).
IMPORTANT: Tap the type indicated surface on
bearing (22) by using a plastic
hammer.
14. Install the outer race of bearing (22) to valve
casing (28) by using a plastic hammer.
IMPORTANT: Install valve plate (21) with the notch
on port facing to the rotor (9) side.
15. Install O-ring (23) to valve casing (28). Apply
grease to valve plate (21). Install valve plate (21)
to valve casing (28).
16. Apply grease to the needle part of bearing (22).
IMPORTANT: Check that the clearance between
valve casing (28) and casing (1) is
equal to that before disassembling.
If the clearance is larger than that
before disassembling, repeat the
installation from step 5.
17. Align the matching marks and install valve casing
(28) to casing (1).
18. Install valve casing (28) to casing (1) with socket
bolts (29) (4 used).
: 17 mm
: 430 N⋅m (44 kgf⋅m, 320 lbf⋅ft)
19. Install poppets (27) (2 used) and springs (26) (2
used) to valve casing (28). Install O-ring (25).
Install plug (24) to valve casing (28).
: 14 mm
: 330 N⋅m (34 kgf⋅m, 245 lbf⋅ft)
20. Install relief valves (32) (2 used) to valve casing
(28).
: 41 mm
: 175 N⋅m (18 kgf⋅m, 130 lbf⋅ft)