12 © 2012 ITW Finishing Systems and Products
Parts Replacement/
Maintenance
SPRAY HEAD SEAL
REPLACEMENT
1. Remove air cap and retaining ring (6).
(See fig 29).
2. Remove fluid adjusting knob (28), spring
(25), and spring pad (26). (See fig 4 p9).
3. Remove fluid needle (24) from gun body.
(See fig 5 p9).
4. Remove fluid nozzle using 10mm Spanner
(59). (See fig 30)
5. Remove spray head (9) and Seal (10)
(See fig 31).
6. Remove seal (10) from spray head.
(See fig 32).
7. Clean front of gun if required, using a soft
brush, as well as the fluid nozzle, air cap,
and retaining ring.
8. Place a new seal (10) into the front of the
gun, making sure the flat of the seal is
aligned to the flat in the gun. (See fig 33).
9. Fit the spray head (9), making sure the pin
is engaged into the hole in the gun-body.
(See fig 31).
10. Fit fluid nozzle (8) and air cap and retaining
ring (6). Torque the fluid nozzle to 18–20
Nm (160–180 lbs.in). Do not over torque
the fluid nozzle. (See figs 30, and 29)
11. Reassemble remaining parts in reverse
order - fluid needle (24), Needle spring and
pad (29), and fluid adjusting knob (28).
12. Trigger gun fully and screw in fluid
adjusting knob (28) until it stops. Back it off
1/2 turn and gun will have full needle
travel.
13. Trigger gun several times to verify correct
operation.
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