SR 25, SR38, SR 65, SR68, SR 75 (S) - WEKA Elektrowerkzeuge
SR 25, SR38, SR 65, SR68, SR 75 (S) - WEKA Elektrowerkzeuge
SR 25, SR38, SR 65, SR68, SR 75 (S) - WEKA Elektrowerkzeuge
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4. P R E P A R A T I O N<br />
Convince yourself that the machine has not been damaged in transit. Check that the nominal voltage is<br />
the same as the voltage indicated on the rating plate.<br />
4.1 Electrical connection<br />
Operate the <strong>SR</strong><strong>25</strong>/38/<strong>65</strong>/68/<strong>75</strong> only via a properly earthed socked. If required use only high-grade<br />
extension cords with a sufficient cross-section:<br />
<strong>SR</strong><strong>25</strong>/38: up to <strong>75</strong>m length - 3G2,5 quality e.g. H 07BQ-F or H 07RN-F<br />
<strong>SR</strong><strong>65</strong>/68/<strong>75</strong>: up to <strong>75</strong>m length - 4G2,5 quality e.g. H 07BQ-F or H 07RN-F<br />
When properly used, water doesn't enter the machine, so that the operation directly on the electrical<br />
mains is possible. As, when the machine is demaged,the water protection is no longer guaranteed, we<br />
recommend to use a RCD for saving the operator.<br />
Take care that the extension cord is not rolled up on use for reaching a sufficient heat<br />
removal. Consider that the <strong>SR</strong><strong>25</strong>/38 takes the maximal power from the electrical mains.<br />
Therefore do not connect other users to the concerning fuse, as the mains and the fuse<br />
will then be overloaded. Please take care that the <strong>SR</strong><strong>65</strong>/68/<strong>75</strong> is only connected to an<br />
earthed 16A CEE socket. If you operate the machine at a higher assured socket, you risk<br />
in case of any fault the total burning of the electronic. By the high leakage current the<br />
machine can electrify when touched, if the ground line is not connected correctly. In this<br />
case absolutely disconnect the mains plug immediately and check the ground wire.<br />
The above mentioned machines can be used at a generator or a transformator provided by the<br />
construction site, if following conditions are kept:<br />
- operating voltage within +5% and –10 % to nominal voltage<br />
- integrated automatic voltage controller with start amplification<br />
- frequency 50 – 60Hz; max. <strong>65</strong> Hz<br />
- AC voltage, power output at least:<br />
<strong>SR</strong><strong>25</strong>/38 - 4 kVA<br />
<strong>SR</strong><strong>65</strong>/68/<strong>75</strong> - 13 kVA<br />
Do not use any other devices at the generator/transformator at the same time. The switching on and off<br />
of other devices can cause undervoltage and / or over voltage peaks that can damage the machine.<br />
4.2 Water connection<br />
Connect the water to the water supply via the plug-in nipple.<br />
Attention: max. water pressure 3 bar.<br />
Please use a GARDENA coupling as the connecting piece to the machine. This can be obtained from<br />
a garden center or builders' merchant.<br />
A water coupling of brass of high value can be received directly from <strong>WEKA</strong>.<br />
Use only clean water, as dirty water will considerably disturb the heat exchange on the cooling surface<br />
and thereby the motor can be totally damaged. Else the seals wear out very quickly.<br />
When water issues from the leakage hole on the water supply bush or at the back end of the<br />
motor, the seals are to be changed at once. This is only to be done in an authorized repair center.<br />
Attention: Under full power conditions at least 1l water per minute is required.<br />
Open the water coupling after the operation, so that the cooling split can empty. This is<br />
especially in cold seasons very important because of danger of frost.<br />
4.3 Fitting up in the core drill rig<br />
The <strong>SR</strong><strong>25</strong>/38/68 is fastened at the gear foot (see illustration) with 4 M8 screws (<strong>SR</strong><strong>65</strong>: 6 screws M8,<br />
<strong>SR</strong><strong>75</strong>: 8 screws M8) with the core drill rig (2) or through an adapter disc which is delivered by<br />
manufacturer of the drill rig.<br />
Choose these screws with a length of thread engagement of at least 20 mm and tighten them<br />
with a torque of 20 Nm.<br />
Place the machine only in a stable core drill rig which has precise guides which are free from clearance.<br />
Ensure that the machine axis is absolutely parallel to the rig column.<br />
Only use rigs with sufficient stability.<br />
Only tear the drill bit without any obstacles from the bore hole, i.e. do not try to pull out a jammed drill bit, as<br />
high angular forces on the drill spindle can break the bearing case. Take care, especially on horizontal<br />
drilling, that the core is not pulled out with the core bit, as its high weight can also break the bearing case.<br />
Since the rig is not included in the delivery, only a few important features are noted here.<br />
Please pay attention to the operating instructions for the rig.<br />
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