8.3
Troubleshooting
8.3.1 Replace needle and nozzle.
The disassembly and assembly
of needle for the common gun
version are described in the sec-
tion called “Standard version”.
The following versions of the gun
are disassembled and assem-
bled in a different manner.
– Spray gun with air cap LE
and hardened 2.8 mm
nozzle
– Spray gun with air cap LG
and hardened 4.0 mm
nozzle
Follow the relevant section.
Standard version
Protective equipment:
Protective workwear
Protective gloves
Disassembly
Fig. 12: Disassemble needle and nozzle
(standard version).
1. Loosen locknut (5).
2. Unscrew and remove set screw (6) with
the locknut (5).
3. Push trigger through.
ð
The needle (3) is pushed a little back-
wards and out from the housing.
4. Remove bearing and needle spring (4).
5. Remove the needle (3).
6. Loosen cap nut (1).
7. Remove the air cap (1).
8. Unscrew nozzle (2) using monkey wrench
and remove.
9. Replace worn out or defective compo-
nents.
Assembling
10. Insert and tighten nozzle (2).
Tightening torque: 10 Nm
11. Place the air cap (1).
12. Tighten cap nut (1).
13. Push in needle (3) carefully into the
housing.
14. Push needle spring and bearing (4) on
the needle.
15. Set and screw-in set screw (6) with the
locknut (5).
16. Tighten locknut (5).
Faults
12/2016
EcoGun 249 - MSG00014EN
19/40
