F A U L T D I A G N O S I S T A B L E
F
A 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)
➝
Thrust spring not fitted
➝
Fit thrust spring
➝
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 - 8 bar maximum.
➝
Incorrect bore of hose
➝
Ensure bore of hose is 6.4mm minimum
➝
Insufficient air volume
➝
Ensure there is no restriction in the air supply or connections
➝
Tool not properly lubricated internally
➝
Lubricate as per instructions
Tool fails to start
➝
Tool not properly lubricated
➝
Lubricate then depress trigger several times
➝
Restricted air pressure/volume
➝
Ensure there is no restriction in the air supply
Tool runs
➝
Push rod too long
➝
Replace with one of correct length
permanently
➝
Insufficient air supply
➝
Adjust air pressure/volume
in reverse mode
Tool runs
➝
Push rods/needle roller missing
➝
Replace where necessary
permanently
➝
Air leak around screw
43
➝
Seal with thread sealant
in forward mode
➝
Push rod too short
➝
Replace
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
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