Repair
12 312145K
Assembly
1. Press a new gasket (3*) into the gun body. Lightly
grease the seal retainer (2*) and install. Torque to
48–72 in-lb (5–8 N•m).
2. Lightly grease and replace the needle (8*). Press
the needle through the seal retainer.
3. Apply light-strength Loctite
™
to needle threads.
Holding the needle with too (36*), install needle
retainer (6). Tighten until it bottoms out. Do not
overtighten.
4. Lightly grease valve seat (10*) threads. Squeeze the
trigger to retract the needle and install gasket (9*)
and valve seat (10*). Torque valve seat to 26–32
ft-lb (34–43 N•m).
5. Grease and install the spring (5) and cap (4).
Tighten the cap to 10–13 ft-lb (8–10 N•m).
Test Gun Before Using
1. Engage the trigger lock. Connect the fluid hose to
the gun.
2. Start and prime the pump.
3. Disengage the trigger lock and trigger the gun into a
metal waste container.
4. Release the trigger. The gun should immediately
stop spraying and there should be no leaks. If there
is a problem, follow the Pressure Relief
Procedure, page 6. Check through the Assembly
procedure and correct any problem.
5. Install the tip and tip guard before regular use.
NOTICE
Use only tool (36) and fingers to tighten the needle.
Do not overtighten or breakage may occur.
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