Model GX-7-DI Spray Gun
22
22943-1, Issue 1
5.
REMOVE THE SAFETY STOP- Push the Stop partially forward, rotate it to the full
counter clockwise position, and slide the Stop off the Air Cylinder.
6.
REMOVE THE SOCKET HEAD SCREW AND CYLINDER CLAMP- Using the
9/64” Ball Point Hex Key, remove the rear #8 Socket Head Cap Screw and the
Cylinder Clamp from the Handle.
7.
REMOVE THE END CAP- Using an Adjustable Wrench, remove the End Cap by
turning it counter clockwise from the Air Cylinder.
8.
INSPECT THE END CAP O-RING- If necessary replace the O-Ring and install a
new one after lightly coating it with Lubriplate Grease.
9.
INSPECT REAR CUP SEAL- Remove the Rear U Cup Seal from the End Cap and
inspect it for damage. Replace it if required, making sure that the “cup” is facing
towards the front of the air cylinder.
10. REMOVE THE PISTON ROD ASSEMBLY- By hand, pull the Piston Assembly out
of the Air Cylinder. Inspect the O-Ring for damage and replace it if required. Apply
Lubriplate Grease to the new O-Ring and carefully install it, taking care not to
damage it.
11. REPLACE THE FRONT CUP SEAL- If air is escaping around the Piston Rod
during operation, remove and replace the Cup Seal located in the front of the air
cylinder. Lubricate the new cup seal and install it making sure that the “cup” is
facing towards the rear of the air cylinder.
12. INSTALL THE PISTON INTO THE AIR CYLINDER - Insert the Piston and Rod
Assembly into the Air cylinder. Be careful not to damage the cup seal in the front
face of the Air Cylinder as the rod passes through it.
13. INSTALL THE END CAP- Using an Adjustable Wrench, reinstall the end cap by
threading it clockwise into the air cylinder.
14. INSTALL THE SOCKET HEAD SCREW AND CYLINDER CLAMP- Using the
9/64” Ball Point Hex Key, retighten the #8 Socket Head Cap Screw and Cylinder
Clamp to the Handle.
15. INSTALL THE SAFETY STOP- Slide the Stop onto the rear of the Air Cylinder.
Push the Stop partially forward and rotate it clockwise until it locks in the “Open”
position. (The Red Band will be exposed) Push the stop further forward and rotate it
clockwise until it locks in the “Closed” position.
16. TIGHTEN THE REAR SEAL RETAINER ASSEMBLY- Use the 1/2” Open-End
Wrench to tighten the Retainer Assembly. Do not over tighten.
