14
Preparations at the workplace
Electric power supply / fuse rating
CAUTION
Irrespective of whether using mains power or genera-
tor power, always check that an earth/ground conduc-
tor and ground fault circuit breaker are present in the
electric supply and that these are connected. If suspected
that the electric supply is not earthed/grounded, the pow-
er unit must be earthed/grounded by way of the earth/ground
terminal provided.
Voltage version
3
×
400 V
3
×
200 V
Minimum fuse rating
16 A
32 A
Maximum fuse rating
32 A
63 A
Ground fault circuit breaker (FI) Type A 30 mA
Electric power connection /
power cable plugs
Voltage version 3
×
380–480 V
3
×
200–280 V
Pin
3P + N* + PE
assignment
32A 6h
3P + PE 63A 9h
Pin-
assignment
L1 = phase 1, L2 = phase 2, L3 = phase 3, N = neutral conductor,
PE = earth / ground
* The 230 V outlet on the power unit functions only when the neu-
tral conductor (N) is connected.
The CEE connector supplied, if required, should be fit-
ted to your power cable by an authorized electrician.
The remote control unit indicates the voltage and shows
an error in the event of any one of the phases (L1, L2,
L3) providing no power.
Extension cables / conductor cross section
■
Use only extension cables which are approved for the
intended field of use and with conductors of adequate
cross section.
■
In accordance with EN 61029-1, conductors must
have at least the following cross sections: 1.5 mm
2
for 16 A, 4 mm
2
for 32 A and 10 mm
2
for 63 A (con-
ductor cross section = cross-sectional area of indi-
vidual conductors).
■
Inadequate conductor cross sections and long cables
result in a drop in voltage and may cause the cable to
overheat.
6.5
L3
L2
N
L1
PE
L1
L2
PE
L3
6.4
6.3
■
Extension cables must be fully unrolled before the
wall saw is put into operation.
Cooling water supply
1. When the cooling water has a temperature of 18°C, a
flow rate of approx. 4 l/min is required for cooling the
power unit and saw head.
2. Use only clean cooling water.
3. In applications with a minimal water flow rate (e.g.
masonry), the excess water can be drained away by
using the bypass function at the saw head.
4. The machine’s automatic cut-out will be activated in
the event of inadequate cooling.
5. Where pressure in the water supply line is low, a non-
return valve should be fitted in order to prevent dirty
water finding its way into the water supply.
NOTE
In order to prevent damage to the seals, a small quantity
of water is allowed to reach the saw blade by way of the
drive spindle even when the bypass valve is fully closed.
6.6
Printed: 09.03.2015 | Doc-Nr: PUB / 5139344 / 000 / 01