WAGNER Pole Gun Manual De Usuario página 17

6. Remove the two trigger screws that secure the trigger to the gun head. Remove the trigger.
7. Place the gun head in a vise and
remove the gun head fitting.
8. Using a 3/8" socket, remove the
lock nut from the threaded end of
the seal assembly inside the back
of the gun head.
9. Using a pliers, pull the seal
assembly from the front of the
gun head. Be careful not to
damage the threads inside the
gun head.
10. Remove the seal washer from the
gun head.
11. Soak the removed parts in the
appropriate solvent and wipe
clean.
12. Inspect the parts for wear or
damage and use new parts
during reassembly of the gun,
when necessary.
Lubricate all packings
i
and moving parts with a
lithium-based grease before
reassembly.
13. Install the new seal assembly into
the front of the gun head. Make
sure the threaded portion of the seal assembly is aligned with the rectangular hole in the back
of the gun head.
14. Thread the lock nut onto the threaded shaft of the seal assembly in the back of the gun head.
Tighten the nut until approximately 1/16" of the seal assembly shaft sticks out past the nut.
15. Apply a lithium-based grease to both sides of the new seal washer and insert the washer into
the groove inside the gun head.
16. Install the gun head fitting into the gun head and tighten until the hex on the fitting meets
the gun head. Make sure the seal washer remains in the groove inside the gun head during
installation. Torque to 45–50 ft./lbs.
17. Reassemble the trigger.
18. Inspect the o-ring on the gun head fitting and replace if necessary.
19. Apply removeable Loctite to the threads on the shaft. Hold the seal assembly in place with a
wrench and thread the shaft into the seal assembly until it stops on the chamfered shoulder.
Do not apply excessive force on the shaft.
20. Lubricate the o-ring on the gun head fitting and reassemble the extension pole to the gun
head fitting. Trigger the gun before final tightening of the extension pole to prevent damage to
the ball holder.
21. Test the operation of the trigger. There should be a small amount of play in the trigger after
the trigger is released. This will ensure that the ball holder is fully seated in the diffuser and
the gun is shut off when the trigger is released. Adjust the position of the lock nut on the seal
assembly if trigger adjustment is necessary.
22. Reassemble the trigger guard.
23. Start the sprayer and pressurize the gun (refer to the instructions in the sprayer's Owner's
Manual). Check the gun for leaks.
24. Move the trigger lock to the locked position. Pull the trigger and check for leaks.
Pole Gun
GB
Extension Pole
O-Ring
Gun Head Fittiing
Rear Fitting
Seal
Assembly
Seal
Washer
Shaft
Lock Nut
Trigger
Screw
Trigger
Trigger
Guard
17