Fiat Kobelco EX355 Tier2, Technical Manual

Page: 485 / 968

EX355 W2-4-35
PUMP DEVICE
SM6221
SM6230
37
48
49
53
37
36
35
75298412
NOTE - Install pin into the groove of cylinder block ( 8 )
while rotating the end of center shaft.
22. Install center shaft ( 9 ) and seven plungers ( 7 ) into
cylinder block ( 8 ).
23. Face the spherical surface of valve plate ( 19 ) to
cylinder block ( 8 ) and insert the end of center
shaft ( 9 ).
24. Install pin ( 25 ) of feedback link ( 21 ) into slot in
casing ( 1 ) on the regulator mounting surface.
25. Apply grease to O-rings ( 34 ). Install three O-
rings ( 34 ) and packing ( 52 ) on casing ( 1 ).
26. Install valve plate positioning tool ( 75298412 ) on
the drain port of casing ( 1 ) to position valve plate
( 19 ) at the center position.
NOTE - Be sure to apply hydraulic oil to the matching
surfaces of valve plate ( 19 ) and cylinder block ( 8 ).
NOTE - Install head cover ( 31 ) on casing ( 1 ) with
aligning the holes of spring pins ( 32 ).
27. Install head cover ( 31 ) on casing ( 1 ), aligning (
W
ith
positioning tool 75298411 ) servo pin ( 29 ) on head
cover ( 31 ) with the orifice in valve plate ( 19 ). The
valve plate ( 19 ) guide surface mates with head
cover ( 31 ) bottom surface, forming a sliding fit.
28. Tighten bolt ( 35 ) with spring washer ( 36 ).
: 12 mm
: 108 N
⋅
m (11 kgf
⋅
m, 80 lbf
⋅
ft)