Spray Head Seal Replacement - DeVilbiss TEKNA Pro Lite PRO-470 Fiche Technique

TB-1020
10
Parts Replacement/
Maintenance
SPRAY HEAD SEAL
REPLACEMENT
1. Remove air cap and retaining ring (6).
(See fig 26).
2. Remove fluid adjusting knob (28), spring (25),
and spring pad (26). (See fig 27).
3. Remove fluid needle (24) from gun body. (See
fig 28).
4. Remove fluid nozzle using a 10mm wrench.
(See fig 29).
5. Remove spray head (9) and seal (10)
(See fig 30).
6. Remove seal (10) from spray head.
(See fig 31).
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 32).
9. Fit the spray head (9), making sure the pin is
engaged into the hole in the gunbody.
(See fig 33).
10. Fit fluid nozzle (8), air cap and retaining Ring
(6). Torque the fluid nozzle to 18–20 Nm
(13–15 ft-lbs). Do not over torque the fluid
nozzle. (See figs 34, and 35)
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.