TROUBLESHOOTING AIRLESS PUMP
(~
PROBLEM PROBABLE CAUSE
REMEDY
Electric motor won't run
1.
Unit unplugged
or
circuit fuse
1.
Check
blown
2. Pressure setting
too
low
2.
Increase
3.
Brushes on motor are worn
3.
Replace
4. Electric motor burned out
4.
Replace
5. Switch defective
5. Replace
6. Fuse
in
pump blown
6.
Replace
Gas engine won't start 1 . Engine switch not on
1.
Turn
on
(where applicable) 2. Engine oil level
low
2. Try starting engine.
If
light
on
rear
glows,
add
oil
3.
Out
of
gas
3.Fill
4. Spark plug cable disconnected
or
4.
Connect or replace
bad plug
Pump won't prime
1.
Air in line
1.
Check syphon
tube
0-Ring
and/or
let paint circulate in
prime
fJOSition
2. Insufficient pressure
2.
Increase pressure
3.
Clutch worn
or
damaged (Gas)
3.
Replace
Insufficient material flow
1.
No
paint
1.
Check supply
2. Syphon strainer clogged
2. Clean
/\
3. Pump/gun filter clogged 3. Clean & replace
(,_~)
4. Pump will not prime, material too
4.
Thin material
heavy
5. Engine not tuned properly (Gas)
5. Tune engine
6. Worn
clutch (Gas)
6.
Service
Pump will not maintain pressure
1. Air
leak in system
1.
Tighten connections
2. Air
leak in syphon tube
2. Tighten; check
for
leaks
3. Inlet valve not seating
3.
Service
or
clean
4. Worn packings
4.
Replace
5.
Broken
or
worn valve seats
5.
Reverse or replace
6. Worn prime valve
6.
Replace
Not enough pressure
1. Pressure setting too
low
1.
Increase
2. Plugged filters 2. Clean
or
replace
3. Spray tip too big
or
worn
3. Change or
replace
4.
Engine
or
motor rpm too
low
4.
Increase throttle
(Gas)
Excessive surge at spray gun
1.
Wrong type of hose
1.
Replace with a minimum 50'
grounded nylon braid high
pressure hose
2.
Spray tip too big
or
worn
2. Change
or
replace
3.
Excessive pressure
3. Decrease pressure and engine
speed
Paint
leaks into oil cup
1.
Worn out packings
1.
Replace
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