Gradall 524 Parts Manual User Manual
Page 168
HYDRAULIC COMPONENTS
(9108-3055) Main Hydraulic Control Valve Assembly
Starting Serial No. 0177005
Original Issue 1-90
Revised 3-93
10-7
Item
Part No.
Qty.
Description Of Part
9108-3055
Ref
MAIN HYDRAULIC CONTROL VALVE
ASSY
1
9108-4004
1
SPOOL POSITIONER
(includes items 2 thru 7)
2
2
COLLAR
3
1
SPRING
4
1
POSITIONER
5
1
BONNET
6
2
WASHER
7
2
SCREW
8
9108-4005
4
SPOOL SEAL KIT
(includes item 9 thru 11)
9
2
SEAL
10
2
WASHER
11
2
RETAINER
12
9108-4006
4
SPOOL RETAINER
(includes item 13 & 14)
13
2
WASHER
14
2
SCREW
15
9108-4007
2
SPOOL
16
9108-4009
1
MAIN RELIEF(includes item 17)
17
9108-4206
1
O-RING (inner)
9108-4207
1
O-RING (outer)
18
9108-4010
6
LOAD CHECK PLUG
(includes one of item 19)
19
9108-4202
6
LOAD CHECK PLUG SEAL KIT
(one required/ check plug)
20
9108-4199
2
RELIEF - 2800 PSI
(includes one of item 21)
Item
Part No.
Qty.
Description Of Part
21
9108-4201
2
RELIEF SEAL KIT (one required/relief)
9108-4200
AR
RELIEF SERVICE KIT
9108-4015
5
VALVE SECTION SEAL KIT
(includes items 22 & 23)
22
2
PRESSURE SEAL
23
2
EXHAUST SEAL
24
9108-4016
1
R.H. END COVER ASSY
(includes items 25 thru 27)
25
9108-4017
1
PLUG
26
9108-4018
1
PLUG
27
9108-4204
2
O-RING (1 required plug)
28
9108-4008
1
L.H. END COVER ASSY
(includes items 16 & 17)
29
9108-4011
1
VALVE SECTION ASSY
(includes one of each items 1,8,12,15,
and two of item 18)
30
9108-4011
1
VALVE SECTION ASSY
(includes one of each items 1,8,12,15,
and two of item 18)
31
9108-4012
1
VALVE SECTION ASSY
(includes items 1,8,12,20 & 32)
32
9108-4013
1
SPOOL
33
9108-4014
1
VALVE SECTION ASSY
(includes one of each items 1,8,12, &
34, and two of item 32)
34
9108-4013
1
SPOOL
9108-4019
1
STUD KIT (includes items 35 & 36)
35
3
STUD
36
3
NUT
RS