| Trouble |
Cause |
Solution |
| Loses torque every time the fastener is run down. Finally tool will not
run. |
The Lock Pin did not get put back into the Spring Retainer. |
Put the Lock Pin in the Spring Retainer. |
| Tool operates intermittently. |
One or more of the shoulders on the Pilot Pin is rounded. |
Replace the Pilot Pin. |
| Tool shuts off as soon as it is started, or tool shuts off but will not
re-start. |
Spring under Pilot Pin has lost tension. Notch Pin is rounded. Notch Pin
Band is stretched out of shape. The shoulders on the Pilot Pin are rounded. |
Replace Notch Pin, Band and/or Pilot Pin. Replace Spring. |
| Tool ratchets when it shuts off. |
Valve Rod too long. Bur on Pilot Pin of inside of Cam. |
Shorten Valve Rod. Clean bur off Pilot Pin or Cam. |
| Loss of RPMs |
Exhaust Filter is dirty, causing back pressure. |
Replace Filter. |
| Lever type only. Tool will not run. |
The Valve Rod is pushed through the Shut Off Valve. |
Replace Shut Off Valve. |
| Tool runs all the time. |
O-ring has gotten pushed down into the Casing. Air pressure is high. |
Put the O-ring back into its seat. |
| Lever type only. Tool will not reset. |
Valve Packing is damaged or Valve Pin installed upside-down. |
Replace Valve Packing. Reinstall Valve Pin rightside-up. |
| The tool will not reset after it shuts off. |
The Anvil Space is backwards. |
Turn the Anvil Spacer over. |
| Pistol series only. Tool will not run. |
The Valve Rod Cap Pin has been pushed by the ball. |
Reset the Valve Rod Cap. |
| Pistol series only. Tool runs all the time. |
Foreign matter under ball in Throttle assembly. |
Clean Trottle assembly. |
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