TROUBLESHOOTING AIRLESS PUMP
PROBLEM
Electric motor won't run
Gas engine won't start
(where applicable)
Pump won't prime
Insufficient material flow
Pump will not maintain pressure
Not enough pressure
Excessive surge
at
spray gun
Paint leaks into
oil cup
PROBABLE CAUSE
1. Unit unplugged or circuit fuse
blown
2. Pressure setting too low
3. Brushes
on
motor are wom
4. Electric motor burned out
5. Switcll defective
6. Fuse in pump blown
1 . Engine switch not on
2. Engine oil level low
3.
Out
of gas
4. Spark plug cable disconnected or
bad plug
1.
Air
in line
2. Insufficient pressure
3. Clutch worn
or
damaged (Gas)
1.
No
paint
2. Syphon strainer clogged
3. Pump/gun filter clogged
4. Pump
will not prime, material too
heavy
5. Engine not tuned properly (Gas)
6. Worn clutch (Gas)
1.
Air
leak in system
2.
Air
leak in syphon tube
3. Inlet valve not seating
4. Worn packings
5. Broken
or
worn valve seats
6. Worn prime valve
1. Pressure setting too low
2. Plugged filters
3. Spray tip too big or worn
4. Engine
or
motor
rpm
too low (Gas)
1. Wrong type of hose
2. Spray tip too big or worn
3. Excessive pressure
1. Worn out packings
15
REMEDY
1.
Check
2. Increase
3. Replace
4.
Replace
5. Replace
6.
Replace
1.
Tum
on
2.
Try starting engine.
If
light on rear
glows, add oil
3.Fill
4.
Connect
or
replace
1.
Check syphon tube
0-Ring
and/or
let paint circulate
in
prime
position
2. Increase pressure
3.
Replace
1.
Check supply
2.
Clean
3.
Clean & replace
4.
Thin material
5. Tune engine
6.
Service
1.
Tighten connections
2.
Tighten, check for leaks
3.
Service
or
clean
4.
Replace
5.
Reverse
or
replace
6.
Replace
1.
Increase
2. Clean
or
replace
3.
Change
or
replace
4.
Increase throttle
1.
Replace with a minimum 50'
grounded nylon braid high
pressure hose
2.
Change
or
replace
s:
Decrease pressure and engine
speed
1.
Replace
