Barrel Removal; Fluid Needle Packing Replacement; Parts Drawing - Graco 218-745 Instructions-Parts List Manual

Barrel Removal

1. Unscrew the nut (34) at the gun's fluid inlet adapter
(35). See the PARTS DRAWING.
2. Pull the fluid tube (31) out of the fluid adapter (35).
3. Remove the trigger by removing the screws and
spacers from the gun.
4. Remove the ES indicator lights from the socket head
cap screws (52).
5. Using the wrench (66f) supplied, loosen and remove
the two socket head cap screws (52) from the gun.
See Fig 12.
6. Hold the gun body with one hand and pull straight up
to remove the gun barrel (20). See Fig 13.
CAUTION
To avoid damaging the power cartridge, always
pull the gun barrel straight away. If necessary,
gently move the gun barrel from side to side to free
it from the gun body.
NOTE: The gasket (6) should be left in the gun body if
the gasket is not to be replaced.
T o install the barrel (20), follow the procedure below:
1. Be sure the gasket (6) is in place. Replace if dam-
aged. Place the barrel over the power cartridge (2)
and onto the gun body. See Fig 13.
2. Install the two socket head cap screws (52) and
tighten with the wrench (66f). See Fig 12.
3. Snap the ES indicator lights in place over the socket
head cap screws (52).
4. Insert the fluid tube (31) into the gun's fluid inlet
adapter (35) and tighten the nut (34).
5. Install the trigger with the screws and spacers. Test
the gun resistance as instructed on page 16.

Fluid Needle Packing Replacement

1. Remove the air cap assembly and fluid nozzle as
described in To Clean or Change Air Cap and
Fluid Nozzle.
2. Remove the electrode as described under Elec-
trode Replacement.
3. Remove the gun barrel as described under Barrel
Removal.
4. Unscrew the packing nut (9e) using the wrench (66b)
supplied. See Fig 14.
SERVICE
KEY
31 Fluid Tube
52 Cap Screw
66f Wrench
31
Fig 12
KEY
2 Power Cartridge
6 Gasket
20 Gun Barrel
Fig 13
KEY
9e Packing Nut
66b Wrench
Fig 14
66f
52
20
6
2
66b
9e