Wagner SprayTech 9900 User Manual

Page of 20
 
11
GB
Troubleshooting
Problem
  A.  The unit will not start.
  B.  No coating material flow from 
the tip.
  C.  Tip drips.
  D.  Spray pattern sickle-shaped.
  E.  Spray jet flutters.
  F.  Leaks around the needle (3)*.
*see page 12-13
Cause
  1.  No mains voltage.
  2.  Carbon brushes in motor worn.
  3.  Fine-wire fuse defect.
  4.  ON/OFF switch defect.
  5.  Motor defect.
  1.  Tip clogged.
  2.  Non-return valve (34)* clogged.
  3.  Paint container seal damaged.
  4.  Filter (48)* clogged.
  5.  Paint container empty.
  6.  Adjusting ring (30)* open too far.
  7.  Material adjusting knob (1)* closed.
  1.  Worn tip.
  2.  Contamination in tip.
  3.  Material adjusting knob open too far.
 
  4.  Needle seal screw connection (20)* over-
tightened.
  1.  Air cap holes plugged.
  1.  Coating material in paint container is 
running out.
  2.  Filter clogged.
  1.  Needle seal screw connection (20)* loose.
  2.  Needle seal (26)* worn. 
Solution
  1.  Check.
  2.  Replace.
  3.  Have checked and replaced by a specialist 
electrician.
  4.  Have replaced by a specialist electrician.
  5.  Call WAGNER service.
  1.  Clean tip.
  2.  Unscrew non-return valve and clean or exchange 
valve plate.  Pay attention to the direction of the 
arrow during assembly.
  3.  Replace.
  4.  Clean or replace.
  5.  Refill.
  6.  Adjust.
  7.  Adjust.
  1.  Replace.
  2.  Clean.
  3.  Adjust material adjusting knob accordingly (see page 
6).
  4.  Adjust.
  1.  Clean.
  1.  Refill coating material.
  2.  Clean or replace.
  1.  Tighten screw connection for needle seal (20)* 
loosely with open-end wrench.
  2.  Tighten or replace the needle seal (26).