Fiat Kobelco EX355 Tier2, Техническое руководство

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EX355 W2-7-11
PILOT VALVE
SM1115
SM1116
75301504
75301512
Assemble Right and Left Pilot Valve
1. Insert special tool ( 75301504 ) into each port on
casing ( 17 ). Be sure to insert the smaller end of
the special tool first.
IMPORTANT - The number of shims ( 21 ) has been
determined during the perfomance test at the factory.
Take care not lose them. Install spacer (
20 ) with its
concave side facing the spring.
2. Install shims ( 21 ) (20 used) and balance spring A
( 23 ) (2 used) or B ( 25 ) (2 used) onto each spool
( 19 ) (4 used). While compressing balance spring
A ( 23 ) (2 used) or B ( 25 ) (2 used), insert spacer
( 20 ) (4 used) onto the neck part of each spool ( 19 )
(4 used).
IMPORTANT -
Install spring guide A ( 9 ) or B ( 10 ) with
its concave side facing the spring.
3. Install spring guide A ( 9 ) (2 used) or B ( 10 )
(2 used) and return spring A ( 22 ) (2 used) or B ( 24 )
(2 used) onto each spool ( 19 ) (4 used).
IMPORTANT - Be sure to confirm the applicable port
number for each spool ( 19 ) before inserting.
4. Insert spools ( 19 ) into casing ( 17 ).
5. Install oil seal ( 5 ) (4 used) and O-ring ( 6 ) (4 used)
onto each bushing A ( 7 ) (2 used) or B ( 12 )
(2 used). Insert pusher A ( 8 ) (2 used) or B ( 11 )
(2 used) into each bushing A ( 7 ) or B ( 12 ),
respectively.
Oil Seal Driving Tool: 75301503
6. Put each of the pusher assemblies onto the
respective spool assembly.
7. Install plate ( 4 ) on bushings A ( 7 ) and B ( 12 ).
Install special tool ( 75301512 ) into the universal
joint connecting hole on casing ( 17 ).
8. Gradually tighten the special tool until the bottom
of bushings A ( 7 ) and B ( 12 ) is flush with the top
surface of casing ( 17 ). Remove special tool
( 75301504 ) from each casing port.
9. Temporarily secure plate ( 4 ) using two bolts (M8,
Pitch 1.25). Remove special tool ( 75301512 ).