Rapid-Air AIR FEED / RAPID MASTER WITH KEYPAD - Manual (Page 13)

problem possible Causes remedy
characteristics and possible causes
of troubles with rapid-air feeds
(continued)
Slide block will move out okay,
but will not return without
hesitation.
Feed acts sluggish on start up.
Okay after running for awhile.
– Check speed adjusting screw.
– Check pilot operated valve.
Swollen “O” ring could be binding,
until pressure build up breaks it free.
Check poppet valve.
– Check pilot operated valve for
“O” rings binding. Valve should
move freely in cartridge.
– Adjust for smooth operation.
– Check moisture content in air lines.
Change “O” rings.
– This usually occurs after a period
of non-running. After running unit for
awhile the unit usually frees up okay.