Graco XTR 5 Instructions Manual page 7

Repair
Disassembly
1. Follow Pressure Relief Procedure. Engage trigger
lock.
2. Disconnect fluid hose. Remove RAC tip guard and
tip (19 and 20a-20c) or flat tip guard and tip (30, 31
and 32).
3. RAC tip only: use tool to push gasket and seal out
back of housing.
4. Using a wrench, remove the cap (4) with spring (5)
(releases spring tension on needle).
5. Remove the valve seat (10) and
gasket (9).
6. Holding the needle with tool
(36) remove the needle retainer
(6).
7. Pull the needle (8) out.
8. Using a socket wrench, remove
the seal retainer (2) from the
back of the gun. Use a pick to
remove the gasket (3).
9. Clean and replace parts as needed.
If you need to remove the trigger
NOTE: To avoid losing parts, be ready for two actuator
pins (7) to fall out of the gun body when the trigger (16)
is removed.
XTR 7 Guns
1. Using a wrench,
remove screw (16b)
from the pivot pin
(16a).
2. Slide the pivot pin
(16a) out of the gun
body, and remove the
trigger (16).
312145J
ti10637b
36
16b
7
16a
16
3. Before installing trigger, grease the actuator pins (7)
and the pivot pin (16a).
XTR 5 Guns
1. Using a socket wrench, remove screw (16c) from
each side of the gun body and remove trigger.
2. Before installing trigger, grease the actuator pins
(7).
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.
Use only tool (36) and fingers to tighten needle. Do
not overtighten or breakage may occur.
4. Apply light-strength Loctite
Holding the needle with tool (36*), install needle
retainer (6). Tighten until it bottoms out. Do not
overtighten.
6 5. 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).
ti5187a
6. 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 trigger lock. Connect fluid hose to 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 Pressure Relief Procedure.
Check through Assembly procedure and correct
problem.
5. Install tip and tip guard before regular use.
ti5190a
NOTICE
™
to needle threads.
Repair
7