User Guide

Piston O-ring
11. Remove fluid body and
diaphragm.
12. Remove stroke control and spring
by turning counterclockwise.
13. Remove the piston retainer ring
and anti-torque washer.
14. Remove the piston.
15. Lubricate O-ring, piston shaft and
air cylinder wall with Magnalube-G.
16. Reinstall components in reverse
order of disassembly.
Cylinder O-ring
17. Remove fluid body and diaphragm.
18. Remove stroke control knob and
spring by turning counterclockwise.
19. Remove the piston retainer ring,
anti-torque washer and piston.
20. Remove air cylinder retaining ring,
washer and O-ring.
21. Lubricate O-ring with Magnalube-G.
22. Reinstall components in reverse
order.
Tools required:
2.5 mm hex wrench
1/8" flat-tip screwdriver
6" adjustable wrench
6" needle-nose pliers
snap-ring pliers
8
15
3
10
12
13
16
18
19
20
21
22
Air cylinder body #75401
Air cylinder O-ring
#7520
O-ring retaining
washer #7527W-BL
O-ring retaining
ring #75406
Piston and rod includes O-ring (Viton)
#75403
Piston O-ring
#7519V
Anti-torque washer #7533
Piston retainer ring
#7526
Piston spring
#7525
Tamper-resist
stroke control
#75404
Air input hose & fitting
#75407A
Tamper-resist
stroke key #7547
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Sales and service of EFD dispensing systems are available worldwide.