SHEREX® ~ 400 Riverwalk Pkwy, Suite 600 Tonawanda, NY, 14150 ~ 866-4SHEREX ~ www.sherex.com
13
T
ROUBLESHOOTING
SYMPTOM
POSSIBLE CAUSE
SOLUTION
Pneumatic motor
runs slowly
Motor air leaks
Check for worn out seals. Replace
Low air pressure
Increase it
Air vanes jammed
Lubricate tool through air inlet
Insert does not
deform properly
Pull force/Pull Stroke not set
properly
Adjust
Air pressure outside limits
Adjust
Low oil level
Add oil
Insert out of the grip
Check the insert grip range
Mandrel does not
spin
Mandrel worn/damaged
Replace Mandrel
Hex Driver worn/damaged
Replace Hex Driver
Loose locking ring
Tighten Locking Ring
Insert does not
spin on the
mandrel
Incorrect insert thread
Replace with proper insert
Incorrect mandrel
Replace with proper mandrel
Mandrel out or damaged
Replace
Tool is locked in
installed insert
Excessive pull force or distance
Depress manual spin off
If this does not work, disconnect air,
insert a pin through nose casing slots
and unscrew.
Reduce pull force or distance
Contact Sherex
Replace Mandrel
Defective insert
Defective or worn out or
damaged mandrel
Mandrel breaks
prematurely
Excessive pull force or distance
Reduce pull force or distance
Side load on mandrel
Keep the tool square to the application
when placing insert
Tool does not spin
on insert
No air supply
Insufficient distance between
locknut and spindle
Connect
Set distance between 1.5 and 2 mm??
Air motor jammed
Lubricate through air inlet or if required
contact Sherex authorized repair center
Auto reverse stops
working but the
manual reverse
does work
Oil level
Check oil level and if low add more oil to
the tool
