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20
20
307-712
SERVICE
Barrel Removal
1. Unscrew the nut (34) at the gun’s fluid inlet adapter
(35).
See the
P
ARTS DRA
WING.
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.
Fig 12
Fig 13
KEY
31 Fluid
T
ube
52
Cap Screw
66f Wrench
KEY
2
Power Cartridge
6 Gasket
20
Gun Barrel
66f
52
20
6
2
31
Fig
14
KEY
9e Packing
Nut
66b Wrench
66b
9e