Barrel Removal; Power Cartridge Replacement - Graco 218-026 Instructions-Parts List Manual

KEY
2 Gun Handle
3a Alternator
3b O–Ring
3c Plug
5 Power Supply
5a O–Ring
5b O–Ring
5c Spring
18 Barrel
18
18b Cushion
46 Gasket
Fig 17

Power Cartridge Replacement

1. Remove the barrel as described under Barrel
Removal.
2. Remove the gasket (46) from the gun. See Fig 17.
CAUTION
The power cartridge is fragile. Be careful when
handling it to avoid damage.
3. Grasp the power cartridge with your hand. With a
gentle side to side motion, pull it free from the gun
handle (2). Then pull the power cartridge straight out
of the handle.
CAUTION
DO NOT use solvents to clean the power cartridge
cavity in the gun handle (2). Solvent will damage
electrical components contained in the power
cartridge.
Inspect the power cartridge cavity in the handle for
dirt or moisture. Clean out the cavity with a clean,
dry rag if necessary.
Lightly lubricate the o–rings (3b, 5a, 5b) on the
new power cartridge with petroleum jelly. All the o–
rings and the compression spring (5c) must be in
place or the gun will malfunction.
SERVICE
5
5b
5c
46
18b
See NOTE after
step 3, below.
NOTE: The power cartridge (3)
includes items 3a, 3b,
3c, and 5.
5a
3b
3c
3a
NOTE: The cushion (18b) is part of the gun barrel and
should never be removed. If it ever is removed,
push the cushion, adhesive side in toward the
barrel, with a rod until it is securely adhered in the
barrel. DO NOT use the power supply (5) to
press the cushion into the barrel as it will not ad-
here properly.
4. Insert the new power cartridge in the gun handle.
NOTE: See Fig 18 for proper alignment of the power car-
tridge (3) in the gun handle (2).
5. Install the gasket (46) in the gun handle (2).
6. Install the barrel on the handle as described under

Barrel Removal.

KEY
2 Gun Handle
3 Power Cartridge
Fig 18
2
2
3