Clean The Air Cap And Fluid Nozzle - Graco PRO 5500wb Instructions-Parts List Manual

Clean the Air Cap and Fluid Nozzle

Equipment needed:
D Soft bristle brush
D Non-flammable cleaning fluid
CAUTION
Do not use metal tools to
clean the air cap or fluid
nozzle holes as this could
scratch them, and make sure
the electrode wire is not dam-
aged. Scratches in the air
cap or nozzle or a damaged
electrode wire can distort the
spray pattern.
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Procedure:
1. Relieve the pressure and discharge the system
voltage as instructed on page 19.
2. Remove the air cap assembly (1, 12) and gun
shroud (2). See Fig. 20.
3. Clean the fluid nozzle (14), shroud (2), and exterior
of the gun (P) with a cloth dampened in a non-
flammable cleaning fluid. Avoid getting any fluid
into the air passages. Whenever possible, point
the gun down while cleaning it.
4. If it appears that there is fluid inside the fluid
nozzle (14) air passages, remove the gun from the
line for servicing.
5. Clean the air cap (12) with the soft bristle brush
and a compatible solvent or submerge the air cap
in the solvent and wipe it clean.
24 308496
Maintenance
6. Slide the shroud (2) onto the gun (P).
7. Carefully install the air cap (12). Be sure to insert
the electrode (13) wire through the center air cap
hole and do not bend the wire. Rotate the air cap
horns to the desired position.
8. Make sure the o-ring (8) is in place on the retaining
nut (1). Tighten the retaining nut (1) until the air
cap is held firmly in place; you should not be able
to rotate the air cap horns by hand.
9. Test the gun resistance as instructed on page 33.
8
Fig. 20
P
2
14
13
1
12
04312