Yanmar ViO12-2A, Service Manual

Page: 209 / 409

6.
HYDRAULIC SYSTEM
6-
6
-18
Procedure
(5) Install the plug G3 / 8 21 (with the O-ring 9 ) on the side of
each section.
Note :
Apply grease thinly to the O-rings 9.
(6) Install the system relief valves 10 , the circuit relief valves
24 and the anti-cavitation valve 22 .
Note :
Apply grease thinly to the O-rings 8 and 9.
(7) Install the O-rings 12 , the backup rings 13 and the seal
plates 14 on the spool link side.
(8) Install the boom swing spool, the right travel spool, the
blade spool, the P.T.O. spool, the left travel spool and the
track gauge change spool in their original positions.
Note :
Replace any spool as a spool assembly if necessary.
Tightening torque : 39.2 N m
21 21
Tightening torque : 39.2 N m
22
10
24 10
22
10
24 10
Tightening torque :
(2.0 to 3.0 N m)
12,13,14 12,13,14
Left travel
spool
P.T.O. spool
Boom swing spool
Track gauge
change spool
Right travel
spool
Blade
spool
Left travel
spool
P.T.O. spool
Boom swing spool
Track gauge
change spool
Right travel
spool
Blade
spool