Service; Disassembly - Graco PerformAA 26B570 Instructions Manual

Service

Service
To avoid injury, such as skin injection, follow the
Pressure Relief Procedure, page 14, before
checking or repairing the gun.
NOTE:
Follow the Service Notes in F
reassembling the gun.
Gun repair kits are available. See page 37. Reference
numbers marked with an asterisk (*) in the service
procedures are included with the 288171 Air Seal
Repair Kit. Reference numbers marked with a symbol
(†) in the service procedures are included with the
288136 Fluid Repair Kit.
Items Needed for Service
• 1/16 in. Hex Wrench - provided
• 3 mm Hex Wrench
• Adjustable Wrench
• 4 mm Hex Wrench
• 5/16 in. Nut Driver
• Pliers
• Lubricant part no. 111265; see Kits and
Accessories, page 37, to order
• Compatible Solvent

Disassembly

1. Follow the Pressure Relief Procedure, page 14.
2. Unscrew the four screws (17) and remove the gun
from the manifold.
3. Unscrew the air cap retainer (8). Remove the air
cap (30) and spray tip (9). See F
Model 26B573: Unscrew the air cap (30). Remove the
RAC spray tip (9) and RAC housing (11). See Parts,
page 26.
4. Inspect the tip gasket (9a) in place. If damaged,
replace the tip seal.
22
5. Remove the cap (27) from the piston housing (1).
6. Using the supplied wrench (38), loosen the fluid
7. Trigger the gun (or remove cap (27) and springs
. 17 when
IG
8. Unscrew the needle assembly (14) and use 5/16 in.
9. Remove the piston. Using a pliers, pull the piston
10. If gasket (15) needs to be replaced, unscrew the
NOTE: The gasket (16) is attached to assembly with
adhesive; therefore, if you are replacing gasket (16),
ensure that a replacement gasket is available.
. 17.
IG
F
Remove the springs (28 and 29).
needle setscrew (19). Remove the needle stop (21).
(28, 29)) to pull the needle housing off the seat while
you unscrew the diffuser (10) from the gun body (1).
nut driver to pull the assembly straight out the front
of the gun.
NOTICE
Be sure to keep the needle straight when removing it
from the gun. If the needle is bent, it must be replaced.
(20) out of the piston housing (1). See F
two screws (18) and separate the fluid housing (2)
and piston housing (1). Inspect gasket (16) and
replace if needed.
18
2
1
. 16: Gasket repair
IG
. 16.
IG
18
TI8173b
3A8553A