17
Fault Diagnosis
Pneumatic motor Air leak from motor Check for worn seals. Replace 13
runs slowly Low air pressure Increase 7
Air way blockage Clear restriction in air supply
Worn drive screw Replace 8
Vanes jamming Lubricate tool through air inlet
Insert does not Stroke incorrectly set Adjust 7
deform properly Air pressure outside the tolerance Adjust 7
Low oil level Prime tool 16
Insert out of grip Check grip range of Insert
Drivescrew turns Worn or damaged drive shaft Replace
independent of Worn or damaged drive screw Replace 8
motor Adaptor nut loose Tighten 8
Locking ring 90 missing Fit new locking ring 13
Insert will not Incorrect Insert thread size Change to correct insert
place onto Incorrect drive screw fitted Change to correct drive screw
drivescrew Worn or damaged drive screw Replace
Nose equipment incorrectly assembled Disconnect air supply, re-fit nose 8-9
equipment carefully
Tool is jammed Excessive stroke/ DO NOT DEPRESS TRIGGER. Unlock
on placed insert Defective insert/ stroke locking device and bring
Worn or defective drive screw rear casing forward to zero stroke
position. Depress trigger. Tool
should spin off. Reset stroke. If not,
disconnect air to tool. Insert a
4 mm Ø pin through nose casing slots
into spindle 44. Turn until drive screw
leaves. Insert. Use new insert AND
drive screw.
Drive screw Stroke of tool excessive Re-set stroke
breaks Side load on drive screw Hold tool square to application when
placing Insert
continued overleaf
Item numbers in bold refer to general assembly drawings and parts list (pages 14-15).
Other symptoms or failures should be reported to your local Avdel authorised distributor or repair centre.
Symptom Possible Cause Remedy Page Ref
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