Model GX-7-DI Spray Gun
20
22943-1, Issue 1
1.
ENGAGE THE SAFETY STOP- Push in and turn the Safety Stop clockwise to
place the gun in the Closed safety position.
2.
CLOSE BOTH MANUAL VALVES- Using the 5/16” Spintite, turn each Manual
Valve fully clockwise.
3.
REMOVE THE GUN FROM THE HOSE- Using the 5/16" Spintite; remove the
Coupling Block Mounting Screw. Separate the gun from the Coupling Block. Using
a rag soaked with Gun Cleaner, wipe clean the face of the Coupling Block to prevent
material build-up.
4.
PRESSURIZE THE AIR CYLINDER- After making sure that the Safety Stop is
engaged, connect the air line from the gun to the air source.
5.
LOOSEN THE REAR SEAL RETAINER ASSEMBLY- Using the 1/2” Open-End
Wrench, back out the Retainer Assembly one or two turns. This will eliminate the
contact friction between the Seal, located inside the Packing Nut, and the Valving
Rod. With the packing loosened, the Valving Rod will move freely making the
adjustment procedure easier to perform.
6.
LOOSEN THE LOCK NUT- Using the 3/8” Open-End Wrench, loosen the Lock
Nut by turning it counter clockwise. (As viewed from the front of the gun.)
Continue to back the Lock Nut away from the Valving Rod by three or four full
turns.
7.
ADJUST VALVING ROD- Remove the Safety Stop from the gun. Using the 5/16”
Spintite through the rear of the gun, advance the Valving Rod forward to engage the
PCD. When you feel the Rod contact the PCD, tighten another 1/10 of a turn.
8.
LOCK ADJUSTMENT IN PLACE- While carefully maintaining the position of the
Valving Rod, tighten the Lock Nut up against the Piston Rod.
9.
RETIGHTEN THE REAR SEAL RETAINER ASSEMBLY- Using the 1/2” Open-
End Wrench, retighten the Retainer Assembly.
