9.3.2 Replace needle seal
Personnel:
Operator
+ additional qualification explosion pro-
tection
Protective equipment:
Protective workwear
Protective gloves
Disassembly
Fig. 17: Disassemble needle
1. Thread off and remove nozzle (4) with
end cap.
2. Remove needle spring (2) and plunger
spring (3).
3. Pull back complete needle (1) out of the
housing.
Fig. 18: Disassemble needle seal
4. Unscrew custom nut (6) using open-end
wrench (14mm).
5. Pull out connector (5). Collect custom nut
(6).
6. Screw off needle plug (7).
Fig. 19: Remove seals
7. Remove needle seals (9 and 11) and O-
rings (8 and 10).
8. Use a cleaning agent to clean the contact
face of the needle seal (9 and 11).
Assembly
9. Insert needle seals (9 and 11) and O-
rings (8 and 10) in the illustrated
sequence.
10. Screw-on needle plug (7) loosely.
Faults
02/2020
EcoGun AS AUTO pro HD - MSG00009EN
24/44
