V4.0
HVLP Gravity Paint Gun
8870685
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15
Problem(s)
Possible Cause(s)
Suggested Solution(s)
Air flows
slightly from
nozzle.
1. Airflow blocked by
dirt.
2. Air regulator in
closed position.
1. Check air inlet filter for
blockage.
a. Pour air tool lubricating oil
into air inlet as per
Lubrication instructions for
clearing shipping grease.
b. Operate tool in short bursts
to clear debris.
c. If tool still jammed, clean
tool and lubricate per
lubrication instructions.
2. Open the air regulator to
desired airflow.
Loss of
power or
erratic
performance.
1. Excessive drain on
the air hose or
Incorrect size or
type of hose
couplers.
2. Moisture or
restriction in the air
hose/tank.
3. Air compressor
provides insufficient
airflow.
1. Check the air hose and
confirm the hose fitting is
correct for the inlet
bushing.
2. Depressurize system. Drain
tank and air hose of water.
3. Ensure tool is connected to
a compressor with a rate
flow that matches the tool’s
requirement.
Gun leaks
from the
fluid nozzle.
Foreign substances
between the fluid nozzle
and the fluid needle
preventing proper seal.
Clean the fluid needle and the
fluid nozzle with solvents or
use a new fluid nozzle.
Paint
emerges
from the
fluid needle /
needle seals.
The self-tensioning
needle seal is damaged
or has been lost.
Replace needle seals.