Repair 6-3Part 1612500−02 2018 Nordson CorporationPower Supply ReplacementNOTE: If replacing the powder path, skip this procedure.1. Slide the power supply (21) out of the gun body.2. Check the gasket (23) on the back of the bulkhead (24). Replace it if itis damaged. The gasket is secured to the bulkhead withpressure-sensitive adhesive.212024 20A23Figure 6-3 Removing the Power Supply from the Gun Body20. Gun body20A. Air wash tubing (filter assembly)21. Power supply23. Gasket24. Bulkhead3. Slide the new power supply into the upper cavity of the gun body,guiding the gun body ribs between the raised grooves on the top of thepower supply.4. Press on the end of the power supply to ensure that the power supplycontact tip is firmly seated against the brass contact inside the gun body.5. Route the power supply harness connector through the top hole in thebulkhead.6. If not replacing the powder path or cable, skip the next procedure andgo to page 6-5 to reassemble the gun.Powder Path ReplacementNOTE: Skip these steps if not replacing the powder path or cable. Go topage 6-5 to reassemble the spray gun.1. See Figure 6-4. Remove the outlet tube (22) from the inlet tube. Theelbow portion of the outlet tube is held onto the inlet tube with a tightO-ring fit; wiggle the elbow back and forth to pull it free.2. Remove the two M3 x 20 screws (31B) from the handle base (39).3. Pull the base away from the handle, swing the bottom of the ground pad(27) up and away from the handle, then remove it. Leave the groundwire connected to the ground pad.