Graco PerformAA 15 - Fluid Cartridge Repair

Repair
3A8099A 35
.
6. Slide the fluid cartridge (6) out of the gun body.
Install Fluid Cartridge Procedure
1. Lightly lubricate the cartridge o-rings (6e and 6c).
2. Thread the cartridge 1-2 times into the gun body
until the trigger assembly (9) can fit between the
cartridge washer (6n) and the needle housing (6b)
See F
IG. 43: Trigger placement, page 30.
3. Install the trigger (9), trigger pin (11) and trigger nut
(10) in front of the washer (6n). See Install the
Trigger, page 30.
.
4. Depress the trigger (9) and thread the fluid cartridge
(6) into the gun. Torque to 175-185 in-lb (20-21
N•m).
NOTE: Depress the trigger while torquing the cartridge.
Fluid Cartridge Repair
Rebuild the fluid cartridge or replace fluid cartridge parts
with a compatible repair kit. See Fluid Cartridge Repair
Kits, page 55.
1. Follow the Pressure Relief Procedure, page 15.
2. Remove Fluid Cartridge Procedure, page 34, to
remove the fluid cartridge assembly (6) from the
gun.
3. Separate needle assembly (6b) and diffuser
assembly (6a) with the gun tool (29) and a vise tool.
4. Remove the needle assembly (6b) outer o-rings (6c)
and the inner o-ring (6c).
NOTE: Push the back of the needle forward to access
inner o-ring.
5. Remove outer diffuser o-rings (6d and 6e).
6. Replace the diffuser (6a) parts.
a. Hold the diffuser housing (6m) with a wrench
and loosen the seat nut (6f) with a hex wrench.
b. Remove the seat (6g), gasket (6h), and seat nut
(6f) from the diffuser housing (6m).
NOTE: The gasket (6h) may get stuck. Use a pick to
remove.
7. Rebuild the diffuser (6a).
a. Use a pick to press the seat gasket (6h) into the
diffuser housing (6m).
b. Place the seat (6g) into the diffuser
housing(6m).
NOTE: Install the seat (6g) in either direction.
c. Place seat nut (6f) into the diffuser housing
(6m). Hold the diffuser housing (6m) with a
wrench and torque the seat nut (6f)
to 45-50
in-lbs (5-6 N•m) with a hex wrench. Do not
over tighten.
8. Install replacement outer o-rings.
a. Install outer diffuser o-rings (6d and 6e).
FIG. 50: Remove the trigger to release the fluid
cartridge
FIG. 51: Depress the trigger while threading the
cartridge
11
10
9
6
9
6
1
Torque to 175-185
in-lb (20-21 N•m)
1