16
F A U L T D I A G N O S I S T A B L E
FA U L T D I A G N O S I S
SYMPTOM POSSIBLE CAUSE REMEDY
Tool reverses ➝Worn thrust bearing or thrust washers ➝Replace
before Insert ➝Dirty insert threads ➝Change batch of inserts
is Placed ➝Worn drive screw ➝Replace
➝Lack of lubrication on drive screw ➝Lubricate drive screw properly (see page 6)
(Standard Nutserts only)
➝Clutch torque setting too low ➝Adjust to correct setting
➝Insufficient pressure/volume of air ➝Check air supply/fittings
Tool runs slowly ➝Insufficient air pressure ➝Adjust air pressure at base of handle. 5 - 7 bar maximum.
➝Incorrect bore of hose ➝Ensure bore of hose is 6.4 mm minimum
➝Insufficient air volume ➝Ensure there is no restriction in the air supply or connections
➝Tool not properly lubricated internally ➝Lubricate as per instructions (see page 10)
Tool fails to start ➝Tool not properly lubricated ➝Lubricate as per instructions (see page 10)
➝Restricted air pressure/volume ➝Ensure there is no restriction in the air supply
Tool runs ➝Insufficient air supply ➝Adjust air pressure/volume
permanently ➝Reverse valve stuck ➝Lubricate as per instructions (see page 10)
in reverse mode
Tool runs ➝Valve stem sticking ➝Lubricate as per instructions (see page 10)
permanently
in forward mode
Inserts not ➝Torque setting too low ➝Adjust to correct setting
pulling up ➝Insufficient air pressure/volume ➝Adjust air pressure/volume
➝Inserts out of grip ➝Select correct insert
➝Lack of lubrication on insert ➝Change batch of inserts
➝Lack of lubrication on drive screw ➝Lubricate drive screw correctly (see page 6)
(Standard Nutserts only)
➝Insert thread restricted ➝Change Inserts
➝Drive screw thread worn ➝Replace drive screw
➝Incorrect insert/drive screw ➝Replace with correct insert/drive screw
Standard Nutserts ➝Dirty Nutserts ➝Clean Nutserts
centres falling out ➝Clutch torque setting too low ➝Adjust to correct setting
➝Application thickness below minimum ➝Change to correct Insert
recommended grip
➝Oversize hole in application ➝Correct hole size in application
Worn drive screws ➝Clutch torque setting too high ➝Adjust to correct setting
➝Drive screw not lubricated ➝ Lubricate drive screw regularly when using standard Nutserts
➝Inserts not lubricated ➝Change batch of inserts
➝Tool not held correctly ➝Ensure tool is held square to application
➝Incorrect insert/drive screw threads ➝Replace with correct insert/drive screw
➝Restricted insert threads ➝Change batch of inserts