Wagner SprayTech Twin Stroke Piston Pump 9146 - Manual (Page 22)

22 English
Troubleshooting / Maintenance
Problem
A. The sprayer does not start.
B. The sprayer starts but does
not draw in paint when the
PRIME/SPRAY knob is set to
PRIME.
C. The sprayer draws up paint
but the pressure drops when
the gun is triggered.
D. The PRIME/SPRAY valve is
on SPRAY and there is flow
through the return tube.
E. The spray gun leaks.
F. The tip guard assembly
leaks.
G. The spray gun will not spray.
H. The paint pattern is tailing.
Cause
1. The sprayer is not plugged in.
2. The ON/OFF switch is set to OFF.
3. The sprayer was turned off while still under
pressure.
4. No voltage is coming from the wall plug.
5. The extension cord is damaged or has too
low a capacity.
6. A fuse is blown in the sprayer.
7. There is a problem with the motor.
1. The paint bucket is empty or the suction
tube is not totally immersed in the paint.
2. The suction set is clogged.
3. The suction tube is loose at the inlet valve.
4. The inlet valve is stuck.
5. The outlet valve is stuck.
6. The inlet valve is worn or damaged.
7. The PRIME/SPRAY valve is plugged.
1. The spray tip is worn.
2. The suction set screen is clogged.
3. The gun filter is plugged.
4. The paint is too heavy or coarse.
5. The inlet valve assembly is damaged or worn.
6. The suction tube is loose.
1. The PRIME/SPRAY valve is dirty or worn.
1. Internal parts of the gun are worn
or dirty.
1. The tip was assembled incorrectly.
2. The washer is worn.
1. The spray tip or the gun filter is plugged.
2. The spray tip is not fully in the SPRAY
position.
1. The pressure is set too low.
2. The gun or the suction filter is plugged.
3. The suction tube is loose at the inlet valve.
4. The tip is worn.
5. The paint is too thick.
6. Pressure loss.
Solution
1. Plug the sprayer in.
2. Turn the ON/OFF switch to ON.
3. Turn the pressure control knob to maximum
pressure (+), or relieve pressure by turning the
PRIME/SPRAY valve to PRIME.
4. Properly test the power supply voltage.
5. Replace the extension cord.
6. Take sprayer to Authorized Service Center.
7. Take sprayer to Authorized Service Center.
1. Refill the bucket or immerse the suction tube in
paint.
2. Clean the suction set.
3. Clean the tube connection and tighten it securely.
4. Clean the inlet valve. Inlet may be stuck from old
paint. Depress pusher stem to release.
5. Outlet may be stuck from old paint. Remove inlet
valve. Insert pen or pencil in housing to release.
6. Replace the inlet valve.*
7. Take sprayer to Authorized Service Center.
1. Replace the spray tip with a new tip.**
2. Clean the suction set screen.
3. Clean or replace the proper filter. Always keep
extra filters on hand.
4. Thin or strain the paint.
5. Replace the inlet valve.*
6. Tighten the suction tube.
1. Take sprayer to Authorized Service Center.
1. Take the sprayer to a Authorized Service Center.
1. Check the tip assembly and assemble properly (see
page 17).
2. Replace the washer* (see page 17).
1. Clean the spray tip or gun filter.
2. Put the tip in the SPRAY position.
1. Increase the pressure.
2. Clean the filters.
3. Tighten the suction tube fitting.
4. Replace the spray tip.
5. Thin the paint.
6. Refer to Causes and Solutions for problem C.
* Special repair kits with instructions are available for these procedures. Refer to the Maintenance section of this manual for a list of
the kits and their part numbers.
** Additional parts are available for this procedure. Refer to the Accessories (page 71) section of this manual for a list of the parts
and their part numbers.
Daily Maintenance
The only daily maintenance necessary is thorough cleaning and lubricating after usage. Follow the cleaning and lubricating procedures in
this manual.
Extended Maintenance
Some pump parts eventually wear out from use and must be replaced. The
following list indicates the available repair kits for the parts replaced by
each kit. However, pump performance is the only reliable indicator of when
to replace wear parts. Refer to the
Troubleshooting section for more
information on when to use these kits.
Kit Part # Description
0512228A Fluid Section Seal Kit (9140S, 9146, 9150)
0516724 Fluid Section Seal Kit (9170, 9190)
0516292 Inlet valve kit (9140S, 9146, 9150)
0516296 Inlet valve kit (9170, 9190)