Gradall 534C-6 Parts Manual User Manual
Page 221
HYDRAULIC COMPONENTS
(9108-3420) Main Control Valve
Starting Serial No. 0288568
Original Issue 10-95
* Revised pressure settings
RS
Item
Part No.
Qty.
Description Of Part
25
3
BONNET
26
3
POSITIONER
27
3
COLLAR
28
3
SPRING
29
3
COLLAR
30
9108-4005
6
SPOOL SEAL KIT
(includes items 31, 32 and 33)
31
6
RETAINER
32
6
WASHER
33
6
SEAL
34
9108-4006
3
SPOOL RETAINER
(includes items 35 and 36)
35
6
SCREW
36
6
WASHER
37
9108-4199
2
RELIEF - 2800 psi. (includes item 38)
38
9108-4201
4
RELIEF SEAL KIT
(one required per relief)
9108-4200
AR
RELIEF SERVICE KIT
(not illustrated)(includes relief poppet
and piston ring)
39
9108-4014
1
VALVE SECTION ASSY
(includes two of item 7, and items 21,
22, 30 and 34)
40
2
PRESSURE SEAL
41
2
PRESSURE SEAL
42
9108-4278
1
R.H. END COVER ASSY
(includes item 43)
43
9108-4279
1
PLUG (includes item 44)
44
1
O-RING
45
9108-4280
1
VALVE SECTION ASSY
(includes items 21, 22, 30, 34 and 44)
46
9108-4281
2
RELIEF - 2000 psi. (includes item 38)
NOTE: ONLY ITEMS WITH PART
NUMBERS ARE AVAILABLE
FOR SERVICE.
Item
Part No.
Qty.
Description Of Part
9108-3420
1
MAIN CONTROL VALVE ASSY
(includes all items)
9112-3075
2
SPOOL POSITIONER KIT
(includes items 9 thru 19)
9108-4203
1
STUD KIT (includes items 4 & 5)
9108-4015
5
VALVE SECTION SEAL KIT
(includes items 40 & 41)
1
9108-4008
1
L.H. END COVER ASSY
(includes items 2 & 3)
2
9108-4009
1
MAIN RELIEF (includes item 3)
3
9108-4206
1
O-RING (inner)
9108-4207
1
O-RING (outer)
4
3
STUD
5
3
NUT
6
9108-4277
2
VALVE SECTION ASSY
(includes two of item 7, and 9 thru 19)
7
9108-4010
6
LOAD CHECK PLUG (includes item 8)
8
9108-4202
6
LOAD CHECK PLUG SEAL KIT
(one required per check plug)
9
9108-4230
16
SOCKET HD CAPSCREW, 1/4-20 x 3
10
9108-4231
16
LOCKWASHER, 1/4
11
9108-4232
4
BEARING PLATE
12
9108-4229
4
BONNET
13
9108-4233
4
SEAL
14
9108-4234
2
SPUD POSITIONER
15
9108-4235
2
WASHER
16
9108-4236
2
SPRING
17
9108-4237
2
SPRING
18
9108-4238
2
STOP SLEEVE
19
9108-4239
2
STOP COLLAR
20
9108-4012
1
VALVE SECTION ASSY (includes items
21, 22, 30 & 34, plus two of item 37)
21
9108-4013
3
SPOOL
22
9108-4004
3
SPOOL POSITIONER
(includes items 23 thru 29)
23
6
SCREW
24
6
WASHER
10-9