SUHNER ABRASIVE USG 33-R Dossier Technique page 22

4. S
ERvICE
4.1 p
reVentiVe mAintenAnce
To work effectively and surely keep the
machine and the ventilation slots clean at
all times.
After approx. 150 operating hours check carbon brushes
and replace if necessary. Clean motor housing and re-
plenish grease filling in gearbox housing.
To maintain the protective insulation the machine must be
subjected to a technical safety inspection. This work must
be done exclusively by a specialized electrical workshop.
When working on metal under extreme working conditions
conductive dust deposits can occur inside the machine,
thereby impairing the protective insulation of the tool. In
such cases the use of a stationary vacuuming system,
frequent blowing out of the ventilation slots and protection
by a fault current protection switch are advised.
4.1.1 c
hAnging the cArBon Brushes
The machine is equipped with two carbon brushes. The
carbon brushes must be changed as follows:
Loosen the screw and remove the cover.
Raise the spring, and remove the carbon brushes. Clean
the carbon brush holders. Insert new carbon brushes. It
is imperative that the brushes are arranged in the correct
order. Replace the cover and tighten the screws.
4.2 s
pAre pArts
See page 2-3.
22
/ m
aINTENaNCE
4.3 w
ArrAnty
In the event of the tool being improperly handled, used
for purposes for which it is not intended and/or of the ser-
vice and maintenance instructions not being observed by
non-authorized persons, no warranty shall be in effect for
damages/consequential damages. Complaints can only
be honored if the machine is returned in the undisassem-
bled condition.
4.4 s
torAge
Temperature range: -15°C to +50°C
Max. relative air humidity: 90% at +30°C, 65% at +50°C
4.5 d / e
isposAl nVironmentAl compAtiBility
This machine consists of materials which can be dis-
posed of in a recycling process.
Before disposal, render the machine unusable.
Do not throw the machine into the garbage collec-
tion.
According to national regulations this machine
must be recycled in an environmentally-friendly manner.