24
5. Safety precautions
■
National regulations and laws, as well as the operat-
ing instructions and the safety information applicable to
the accessories employed (sawing wire, fastening acces-
sories etc.) must be observed.
■
Use only adequately dimensioned fastening compo-
nents (anchors, bolts etc.) to secure the pulley stands
and the drive unit. Recommendations can be found in
the wire saw brochure.
■
Use only the accessories recommended in these oper-
ating instructions. See Section 3. The use of other acces-
sories may result in damage or injury.
■
When using ladders, e.g. when mounting the single-
pair pulley stands on walls, ensure that the ladder con-
forms to regulations, is undamaged and stands secure-
ly on the floor.
■
The operator must ensure that no person is present
in the danger zone at any time during operation of the
saw. This also applies to areas not directly visible, e.g.
to the rear of the section of the structure being sawn. If
necessary, a sufficiently large area must be cordoned
off or security personnel posted accordingly.
■
Stay alert and carefully monitor the sawing operation,
the cooling water system and the area surrounding the
workplace.
Do not operate the wire saw if your full con-
centration is not on the job!
■
Use of the wire saw for any purpose other than as
described is not permissible, e.g. it may not be used as
a means of transportation or as an elevator.
■
No modifications may be made to the wire saw, espe-
cially to the drive and/or control unit.
Electrical safety
■
Always check the wire saw before operation. In par-
ticular, check that the electric cables, plugs and hoses are
in good condition. Do not operate the equipment if it is
damaged in any way, if the equipment is not complete or
if the operating controls or components do not function
as they should. In case of faults or malfunctions, the wire
saw should be repaired by an authorised Hilti repair mechan-
ic or qualified electrical specialist.
■
Connect the wire saw only to a power source that is
equipped with an earth conductor and ground fault cir-
5.5
cuit breaker (PRCD). Check that these items are in per-
fect working order before operating the equipment.
■
Make sure that the mains voltage corresponds to the
specification given on the rating plate.
■
Protect yourself against electric shock, i.e. avoid con-
tact with earthed components such as pipes, radiators
and the like.
■
Keep all electric cables, especially their plug connec-
tions, in a dry condition. Close the electric sockets by
means of the covers supplied when not in use.
■
Always pull on the plug itself, never on the cable, when
disconnecting the cable from the control unit or distri-
bution unit. Do not permit electric cables to become
trapped or squashed and protect them from sharp edges,
heat and oil.
■
Use of extension cables : Use only extension cables
with adequate conductor cross-section which are approved
for the intended field of use. Do not work with extension
cables when they are rolled up. This can result in a drop
in output at the equipment and may cause the cable to
overheat. Replace damaged extension cables.
■
Disconnect the power cable before opening the doors
of the control unit.
■
Disconnect the power cable before beginning clean-
ing and maintenance work or in the event of a lengthy
interruption between periods of operation.
■
Should you find that power consumption increases
when the drive motors are idling, or notice a loss in
performance during normal saw operation, then one
of the three fuses may have blown. Switch off the dri-
ve unit and the main switch, open the control unit doors
with the key and check / replace the safety fuses (please
also refer to the “Troubleshooting” section).
Safety precautions during transport
■
Make sure that the wire saw cannot move about dur-
ing transportation.
■
Always avoid adopting a bent-over body position
when carrying heavy items, i.e. keep your back straight
when lifting and carrying.
■
Use the handles provided for transportation of the
5.6
Summary of Contents for DS WS15
Page 1: ...Operating instructions en DS WS15...
Page 26: ...26...
Page 38: ...38...
Page 42: ...42...
Page 48: ...48 8 Care and maintenance Pneumatic circuit diagram drive unit 8 7 Pneumatic circuit diagram...
Page 59: ...59...