16
309000
Troubleshooting
WARNING
To reduce the risk of serious injury
whenever you are instructed to relieve
pressure, always follow the Pressure
Relief Procedure on page 13.
SKIN INJECTION HAZARD
Before preforming any troubleshooting procedure,
perform the procedure to relieve the pressure.
PROBLEM
CAUSE
SOLUTION
Valve does not open
Insufficient air pressure
Turn on or turn up air pressure.
Air not exhausted from behind air cylin-
der piston
Use four-way, relieving-type air valve
operator.
Valve does not close (leaks)
Insufficient air pressure
Turn on or turn up air pressure.
Air not exhausted from behind air cylin-
der piston
Use four-way, relieving-type air valve
operator.
Blockage between needle and seat
Remove and clean needle and seat.
Bad or missing gasket between seat
and housing
Replace gasket (38).
Needle worn out
Replace needle and seat.
Higher than normal back pres-
sure
Nose piece plugging up
Remove and clean.
Soft spots in mixed material.
Nose piece plugging up on one side.
Remove and clean.
System not properly balanced.
Balance system with hoses, check
valves, restrictors.
High static pressures build when valve
shuts off.
Turn off proportioner pump when valve
closes.
Low flow rate
Mixer is curing
Replace mixer.
Snuff back rings (13) are installed.
Remove snuff back rings if they are not
required for maximum snuff back.
Summary of Contents for 2K Ultra-Lite 249591
Page 31: ...31 309000 Dimensions...