© 2015 Enerpac, All Rights Reserved
9
PTW Series Pneumatic Torque Wrench
5 MAINTENANCE
NOTICE:
Failure to keep the air motor properly
lubricated can cause a reduction in output torque.
A constant source of clean and lubricated air is
required to ensure proper operation of the air motor’s
internal components.
Periodically check the oil level in the FRL lubricator
bowl and add oil if low. Check the oil drip rate and
readjust drip speed if too slow or too fast.
NOTICE:
Failure to maintain proper lubricator oil
level and drip rate will result in reduced output
torque and possible air motor failure.
Drain the water separator bowl as needed. Clean
and/or replace filter elements inside the bowl.
6 TROUBLESHOOTING
Symptom
Possible Cause
Solution
Tool is not producing required
torque.
Inadequate incoming air.
Check pressure setting on FRL.
Inadequate lubrication.
After shutting down the FRL,
remove the air fitting coupler from
the tool. Add 1/2 teaspoon of oil
and install the air fitting coupler.
Motor contamination.
Contact Enerpac Service Center.
Noticeable changes in sound
level during operation from one
fastening to the next.
Inadequate lubrication.
Increase the drip rate for the FRL.
Recheck and reset drip rate if
necessary.
Motor turns but there is no torque
output.
Broken square drive.
Contact Enerpac Service Center.
Internal gearbox failure.
Noisy gearbox.
Gearbox failure.
Contact Enerpac Service Center.
