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16
A20A Automatic Electric Airless Spray Gun
Armature Replacement
Part 108182-03
(contd)
3. Remove the nozzle nut, nozzle, and ball and seat module. Refer to Ball
and Seat Replacement in this section.
NOTE: On guns with 8-in. extensions, you do not have to remove the
extension assembly.
4. Remove the solenoid coil. Refer to Solenoid Coil Replacement in this
section. You do not have to disconnect the solenoid wires or conduit.
5. Unscrew the fillister-head screw (not shown) and solenoid sleeve (1).
Remove the long and short springs (2, 3).
6. Pull the armature (4) and fluid guide (6) out of the body. If it cannot be
removed by hand, turn the gun upside down and tap on the threaded
end of the armature with a small diameter brass rod or other soft tool.
7. Insert the armature into the body, making sure the pins on the shaft go
into the slots in the body. Press the fluid guide into the body with your
fingers.
8. Rebuild the gun, using the rest of the new parts from the armature kit.
Tighten threaded parts securely. Refer to Solenoid Coil Replacement
and Ball and Seat Replacement in this section.
1
Figure 7
Armature Replacement
1. Solenoid sleeve
2. Short outer spring*
3. Long inner spring*
4. Armature*
Note: Parts marked with * are included in the armature service kit.
3
2
5
5. O-ring*
6. Fluid guide
7. O-ring*
7
4
6
E 2017 Nordson Corporation
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