W Orking Instructions; P Reventive Maintenance; S Pare Parts; R Epair - SUHNER UPH 2-R Mode D'emploi

Grinding tools which are tightened down extremely tight
must be released using an open-end wrench instead of
with the locking mechanis.
The grinding tools must run true. Do not use grind-
ing tools which have gotten out of round. Trial run!
Check grinding tools before use. The grinding tool
must be correctly mounted and must rotate freely. Per-
form a trial run a minimum over a period of 30 seconds
without load. Do not used grinding tools which are dam-
aged, which do not run true or which vibrate!
3.3 w
orKing instructions
To achieve an optimum result, move tool uniformly back
and forth with light pressure. The electronic constant con-
trol maintains the speed nearly constant during idling and
work under load and assures a uniform result. Excessive
pressure lessens the working capability of the machine,
as well as the life of the tool. The machine is equipped
with an electronic control and integrated overload pro-
tection. If the machine is overloaded, the speed will drop
drastically. Immediately take the load off the machine and
allow to run for a short time without load.
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.
22
/ m
aINTENaNCE
4.1.1 c
hAnging the cArBon Brushes
The Automatic-Stop feature protects the machine from
defects due to excessively consumed carbon brushes
(230/240V). The machine is equipped with two carbon
brushes, i.e. one is installed in each handle half. The car-
bon brushes must be changed as follows:
Unscrew four screws and remove the handle halves.
Lift spring and remove brush. Install new brushes. Clean
carbon brush holders, making absolutely sure not to
change the arrangement of the elements of the carbon
brush assembly. Fit handle halves and fasten with four
screws.
Repeat this change on the opposite side, making
absolutely sure to avoid both handle halves from
being opened at the same time.
4.2 s
pAre pArts
See page 2-3.
4.3 r
epAir
If the machine strict observance of the manufacturing and
testing method the tool should happen to fail, it must be
repaired by an authorized SUHNER agency.
Any replacement needed for the connecting line must be
installed by the manufacturer or its agent if safety risks are
to be eliminated.
4.4 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