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Problom
Sprayer does not startup
Sprayer starts up but
does not draw up paint
Sprayer draws up paint
but pressure does not
build up
Cause
TROUBLESHOOTING
Provided you have followed the instructions, the sprayer will operate efficiently and give trouble-free service. Should any
unexpected problem arise you can, in most cases, remedy the problem by following the chart below.
Remedy
1. Plug in
2. Replace fuse
3. Test power supply voltage
4. Replace switch
5. Replace with 3-prong cord. Any extension cord
used must be 3-wire, 12 gauge minimum, with a 3-
wire plug that will plug into a 3-wire electrical outlet.
6. Repair or replace. Take to SprayTECH Authorized
Service Center.
1. Add more paint or immerse suction tube in paint
2. Clean or replace filter
3. Clean connection and tighten firmly
4. Replace tube
5. Take valve off and clean it
6. Fill only with hydraulic oil part number 0088009
(quart) or 0088010 (gallon). Caution: do not
overfill
7. Push Inlet Valve Plunger to free stuck valve
8. Replace inlet valve
9. Push Outlet Valve Plunger to free stuck valve
10. Clean hydraulic housing if needed (blown dia-
phragm may cause internal freezeup). Replace
defective diaphragm parts or tighten nut if loose
11. Replace tube
12. Replace piston. If cylinder is scored, replace
hydraulic housing
13. Use only hydraulic oil part number 0088009
(quart) or 0088010 (gallon). Change initial fill after
first 20 hours of operation. Change every 200
hours there after. Bleed after changing
14. Remove fan cover and straighten
1. Replace valve
2. Fill to appropriate level using only hydraulic oil part
number 0088009 (quart) or 0088010 (gallon)
3. Clean hydraulic housing if needed. Replace
defective diaphragm parts or tighten nut if loose
4. Dismantle valve. Clean or replace valve spring first.
If this does not work, replace ball
5. Replace tube
6. If piston is scored, replace piston. If cylinder is
scored, replace hydraulic housing
7. Replace housing
1. Sprayer not plugged in
2. Blown fuse in circuit
3. No voltage or low voltage at
wall plug
4. Bad sprayer ON-OFF switch
5. Damaged cord or extension
cord, or cord capacity too low
6. Defective motor
1. No paint or suction tube not
totally immersed in paint
2. Suction filter clogged
3. Suction tube loose at inlet
valve
4. Suction tube damaged or de-
fective
5. Priming valve plugged
6. Hydraulic oil level very low or
empty
7. Inlet valve stuck
8. Inlet valve damaged (paint is
drawn up and leaks through
inlet valve)
9. Outlet valve stuck
10. Diaphragm membrane
ruptured, broken diaphragm
spring, cracked diaphragm
disk, or loose diaphragm nut
11. Loose oil suction tube in hy-
draulic housing
12. Scored piston or cylinder
13. Wrong grade of hydraulic oil, or
using fluid other than hydraulic
oil
14. Rear motor fan cover bent
1. Priming valve defective (paint
runs back via return hose)
2. Hydraulic oil level low
3. Diaphragm membrane
ruptured, cracked diaphragm
disk, broken diaphragm spring,
or loose diaphragm nut
4. Outlet valve stuck, dirty, or has
worn parts
5. Defective suction tube
6. Scored piston or cylinder
7. Cracked hydraulic housing or
paint pump housing