Trouble shooting chart – PA Industries Precision AirFeed User Manual
Page 26
TROUBLE
SHOOTING
CHART
FEEDS
LONG
FEEDS
FEEDS
AND
FEED
AIR
SHORT
LONG
SHORT
SLIDE
LEAKAGE
Feed
Feed
Slide
Strip
Strip
Slide
Moves
Strip
Strip
Moves
Moves
Not
Before
Moves
Moves
Moves
Exhaust
Under
Under
Making
Feed
Under
Under
To
Port
Feed
Stock
Full
Clamp
Feed
Stock
Stock
Stop
No
Valve
Main
Air
Clamp
Clamp
Stroke
Closes
Clamp
Clamp
Buckles
Screw
Motion Block
Body
Tubes
MAINTENANCE
SET-UP & OPERATION
24
Air Pressure or Volume Too Low
✔
✔
✔
✔
✔
Feed Mounted Loose or Misaligned
✔
✔
✔
✔
Obstruction within Die: Slugs, Scrap
✔
✔
✔
Camber, Burrs, Unstraightened Coil
✔
✔
✔
Oily, Slippery Strip
✔
✔
✔
Stock Reel Drag or Tight Loop
✔
✔
✔
✔
Feed Timing Incorrect
✔
✔
✔
✔
✔
Forming Die Pulls Strip Forward
✔
✔
Shearing Die Pushes Strip Backward
✔
✔
Speed Adjust Screw Set Wrong
✔
✔
✔
✔
Clamp Clearance Set Wrong
✔
✔
✔
✔
✔
Water or Dirt in Air Line
✔
✔
✔
✔
✔
✔
✔
✔
Cartridge Valve Malfunction
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
Clamp Pistons O-Rings Leaking
✔
✔
✔
✔
✔
✔
Main Piston Cup Seals Leaking
✔
✔
Air Tube O-Rings Leaking
✔
✔
✔
Valve Disc Broken
✔
✔
Gasket Failure Under Valve
✔
✔
Worn or Broken Clamp Springs
✔
✔
Feed or Stock Clamp Springs Reversed
✔
✔
✔
Not Enough Air Line Oil
✔
✔
Retaining Plate Gasket Leaking
✔
✔
✔
Cushions Filled with Oil or Dirt
✔
✔
✔
✔