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6.3 Sharpening the blades
Any burrs may be removed and the blade smoothed only in the grinding area (Pic-
ture)! Break outs or deep cracks cannot be ground away; in such cases the blades
must be replaced�
Tools required:
1� Clamping device (e�g�, vise) with jaw protection
2� Grinder (e�g� angle grinder or belt grinder) with abrasive having a grain size of
80. A diamond le is adequate for small burrs.
Procedure:
1� Clamp the blade securely into the clamping device so that it cannot move,
leaving the grinding area exposed (Picture P�)�
2� Carefully de-burr the grinding area with the grinding machine (Picture P�)�
6.4 Repair
Repairs may only be performed by HURST or personnel trained by HURST�
When doing so, observe the information in the spare parts lists�
6.5 Rechargeable batteries
If the devices are not used for a longer period, we recommend starting up the
device with the appropriate battery 5 times after 30 days� Then charge the battery
completely�
This supports optimal function and availability of the battery and devices�
7. TROUBLESHOOTING
Fault Check Cause Solution
The motor does
not start after
activating the star
grip
The main switch
is not illuminated
although it has not
been switched o
Device has not
been used for
60 minutes and
has switched o
automatically
Switch the device
on again with the
main switch
Battery dead Recharge the
battery or use
another battery
Battery defective Replace battery
Blue ring on main
switch lights up
There is a defect
in the electronics
Repair by an
authorized dealer,
by personnel
specially trained
by HURST, or by
HURST itself
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