Maintenance - Graco ProComp HVLP 3800 Instructions Manual

Daily
The turbine system is lifetime lubricated. The only main-
tenance required is filter cleaning and replacement.
The turbine filter must be clean at all times to provide
sufficient air flow to cool the motor and atomize the fluid.
Check turbine pre-filter (22) daily for cleanliness. Check
main filter (21) weekly, minimum. Clean as necessary.
Note: To check filter, turn on turbine and place piece of
paper against pre-filter. If air intake holds paper in place,
filter is clean.
The ProComp sprayer has an air filter indicator light on
the front panel. If the filter is good, the light will not illu-
minate. If the filter is clogged or has low airflow, the light
will illuminate. Fig. 5.
F . 5
IG
Cleaning Filter
1 Turn off and unplug turbine.
2 Loosen four thumbscrews (16), remove filter
retainer (15) and pre-filter (22). Fig. 6.
3 Remove main filter (21) and clean using one of the
following methods:
• Tap filter gently on flat surface, dirty side down.
• Direct, compressed air (100 psi(7 bar, 70 MPa)
maximum) through filter panel in the opposite
direction of arrows on side of filter (from the
clean side to the dirty side.
CAUTION
To prevent damage to filter, do not
use compressed air on a wet filter.
309907P

Maintenance

• Soak filter for 15 minutes in water and mild
detergent. Rinse filter until clean. Air dry.
WARNING
To avoid electric shock, never install a damp filter
in the turbine. Installing a damp filter in turbine
can also damage turbine.
ti3694a
8049A
F . 6
IG
Weekly
Check hose for cracks, leaks, and holes. Replace if nec-
essary.
Annually or Every 600 Hours
(whichever comes first)
Replace motor brushes after every 600 hours of turbine
sprayer operation. If brushes are not replaced, motor
failure will occur.
Note: It is recommended than an authorized service
center perform the motor brush replacement procedure,
page 15.
Maintenance
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22
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