Trouble Shooting And Solution - WAGNER GM5000 Operating Manual

EDITION 03/2012
OPERATING MANUAL
7

TROUBLE SHOOTING AND SOLUTION

Functional fault
Insuffi cient material output
Poor spray pattern
Valve rod leaks
Poor wrap-around
Back spraying
No wrap-around
PART NUMBER DOC 2319150
Cause
• Nozzle too small.
• Material pressure too
low.
• Filter of gun or high
pressure fi lter at pump
clogged.
• Nozzle is clogged.
• Wrongly adjusted
atomizing air.
• Nozzle too large.
• Material pressure too
low.
• Material viscosity too
high.
• Seals at the valve rod
are damaged
• Loose package.
• Inadequate earthing.
• Inadequate electrical
resistance of the paint.
• Spraying pressure too
high.
• No earthing.
• Distance between
spray gun and object
too large.
• Nozzle nut placed too
far forward.
• High-voltage switch is
in the off position.
• No electrostatics.
Remedy
• Select larger nozzle
(see Accessories chapter 9).
• Increase material pressure.
• Clean or replace fi lter.
• Nozzle cleaning
(see paragraph 5.4.3 / 5.4.8).
• Readjust the atomizing air.
• Select smaller nozzle
(see nozzle table).
• Increase pressure at pump.
• Thin material in accordance
with the manufacturer's
instructions.
• Replace the seals
(see chapter 6).
• Tighten.
• Check earthing.
• Check resistance of paint in
accordance with paragraph
4.1.1.
• Readjust spraying pressure.
• Check earthing.
• Reduce distance between
spray gun and object
• Screw back nozzle nut
(decrease air distributor
ring gap).
• Switch on high-voltage.
• Repair malfunction as laid
down in the control unit
operating instructions.
GM 5000EAC.
49