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Instructions
Pump Disassembly,
Follow Pump Disassembly instructions Steps 1 - 10
only, pages 3 - 5.
Pump Reassembly
1. Install o-ring (55) in groove on the end of the dis-
placement rod (30) (Fig. 27).
Fig. 27
2. To assemble the new air piston, push the air piston
(21) over the end of the displacement rod (30).
NOTE: The counter bored side of the piston (21)
mates with the displacement rod (30) as shown in
Fig. 28.
30
Fig. 28
3. Apply Loctite® 262 to the bolt (18). Install the
washer (19) and bolt (18). Hold the displacement
rod (30) with an adjustable wrench and use a13 mm
wrench to tighten the bolt securely. Torque bolt to
155 - 160 in. pounds (17.5 - 18.0 N.m) (Fig. 29).
12
55
21
NOTE: Loctite® is a registered trademark of the Loctite
Corporation.
30
Fig. 29
4. Remove pilot valve (20) from the old air cylinder
(27). Apply a light coat of grease to o-rings.
5. Install into new air cylinder (27) (Fig. 30). Torque to
95-105 in. lbs (10.7-11.9 N.m).
27
Fig. 30
18
20
21
19
3A1494D
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