WAGNER AG-14 Manuel D'utilisateur page 14

Maintenance
Follow all safety precautions as described
in the Safety Precautions section of this
manual before proceeding.
Refer to the Parts List section in
i
this manual for part identification.
Replacing/Servicing the Seal Assembly
If your spray gun leaks or spits at the tip when
you release the trigger, the needle or seat is
worn, damaged, or dirty and must be replaced
or cleaned.
Never attempt to perform
maintenance on the spray gun
without first performing the
"Pressure Relief Procedure."
1. Perform the "Pressure Relief Procedure"
and disconnect the fluid hose from the
gun.
2. Remove the end cap and the packing
spring from the rear of the gun head.
3. Using a 3/8" socket, remove the packing
seal assembly from the rear of the gun
head.
4. Soak the removed parts in the
appropriate solvent and wipe clean.
5. Inspect the parts for wear or damage and
use new parts during reassembly of the
gun, when necessary.
Lubricate all packings and moving
i
parts before reassembly with a
lithium-based grease.
6. Make sure the two retractor pins inside
the gun head are still in the correct
position.
7. Insert the packing seal assembly into the
rear of the gun head and thread it by
hand until it stops.
8. Using a 3/8" socket, tighten the packing
seal assembly. Torque to 5 Nm (3.7 ft./
lbs.).
9. Grease both ends of the packing spring
and place it over the packing seal
assembly in the gun head.
10. Place the end cap over the packing spring
so that the pilot inside the end cap seats
inside the packing spring.
11. Push the end cap toward the gun head
while threading it into the gun head.
Using a wrench, tighten the end cap
securely.
12. Perform the "Adjusting the Packing Seal
Assembly" procedure described below.
14
GB
Adjusting the Packing Seal Assembly
Proper adjustment of the packing
seal assembly is essential to
ensure positive shut-off when the
trigger is released.
1. Insert an 1/8" hex wrench through the
hole in the center of the end cap until it
seats inside the packing seal adjustment
screw.
2. Turn the packing seal adjustment
screw until the ball on the packing
seal assembly can be felt seating into
position. Then, turn the screw 1/4 turn
more for proper tension.
Replacing/Removing the Filter
1. Pull the bottom of the trigger guard
forward so that it comes loose from the
handle assembly.
2. Loosen and remove the handle assembly
from the gun head.
3. Pull the old filter out of the gun head.
4. Slide the new filter, tapered end first, into
the gun head.
5. Place the handle seal into the gun head
with the flat side of the seal toward the
gun head.
Flat side of
handle seal
(toward gun head)
6. Thread the handle assembly into the gun
head until secure.
7. Snap the trigger guard back onto the
handle assembly.
filter Chart
Part Application
Number
0034383 Synthetic resin,
enamels, clean
varnishes, stains,
azures
0043235 Base coat enamels,
primer enamels,
fillers, marking paints,
textured enamels
0034377 Emulsions, latex
paints, acrylic paints
0089323 Filler paints, large area
surfaces
Bevelled side of
handle seal
(toward handle)
filter filter
Type Color
Extrafine Red
Fine Yellow
Medium White
Coarse Green
AG-14