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29 Remove plate (49), gasket (29), valve
seat (48), and additional gasket (29)
from primer rod (43) assembly
NOTE
Support piston and primer rod assembly
during roll pin (42) removal Damage to
components can occur
30 Remove roll pin (42) that secures
adapter and insert assembly (41) to
primer rod (43)
30.1 Use a punch and a small hammer
31 Unscrew primer rod from adapter and
insert assembly
32 Remove valve body (47) and guide
washer (45) from upper end of primer
rod assembly
33 Remove seal (46) from valve body
34 Unscrew adapter and insert assembly
from piston (36)
35 Remove aluminum gasket (40), ball (39),
spring (38), and retainer (37)
from piston
Clean and inspect
NOTE
Use the appropriate repair kit for
replacement parts Make sure all the
components are included in the kit
before discarding used parts
1 Clean all metal parts in cleaning solvent
Solvent should be environmentally safe
2 Inspect all parts for wear
and/or damage Replace as necessary
3 Inspect piston (36) and primer rod (43)
closely Use a magnifying glass to detect
any score marks Replace as necessary
Components lubricated in clean oil
Item
Description
9
O-ring, 1
/
in ID x 2 in OD
13
16
10
O-ring, 1
/
in ID x 2
15
16
11
O-ring,
/
in ID x
/
1
5
2
14
O-ring, 1
/
in ID x 1
3
16
16
Seal,
/
in ID x 1
13
16
18
Seal,
/
in ID x 1
13
16
Pump tube upper packing - section view
Refer to Parts list, page 17 for parts identification
1)
Air motor piston rod
2)
Coupling
3)
Pump tube
4 Closely inspect the mating surfaces of all
check valve components for any
imperfections Ensure a smooth and
clean contact is obtained when
assembled
Item
Description
24
O-ring, 4 in ID x 4
/
in OD
31
Ring, wear (glass-reinforced nylon)
1
8
in OD
32
Seal, 0 925 in ID x 1 300 in OD
8
/
in OD
46
Seal, 0 650 in ID x 0 990 in OD
5
16
/
in OD
1
16
/
in OD
9
16
1)
Table 6
/
in OD
3
8
11
Fig. 3
15
9
14
16
17
18
19
10
11
20
12
13
21
22
21
23
2)
3)
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