Safety Clutch - Weka SR 25 Notice D'utilisation

Menu Short description Meaning
selection
1 STZ
2 BSZ
3 On-Counter
4 OFF-Counter
5 VN-ST
6 VN-IO
7 Type
08 - 31 Error storage
5.6 Gear change
The SR38/68/75 have a 3-speed gear.
Never use force to change the gear and only change it when the machine is decelerating or has stopped.
Always select the appropriate speed for the drill diameter (see table and rating plate on the machine).
5.7

Safety clutch

The integrated friction clutch protects the operator, the machine and the tool against high mechanical
overloads. On proper use you should realize the releasing of the clutch hardly.
5.8 Drilling
Set the volume of water at the ball valve (1a) concerning the above mentioned table. Thereby take care
that the carried off material is completely flushed out of the drill hole.
If mud forms round the drill hole, this points to the use of too less water.
Use force as required. If you do not, the diamonds will tend to "polish". In this case the rate of advance
will fall constantly until it finally stops.
In this case the segments can only be "sharpened" again by means of a SiC-grindstone.
Is the torque too low, change to the next lower gear.
Take care that the drill bit and therefore the drill rig do not vibrate, otherwise the diamonds are detached
by force and drill rig and machine wear out hugely.
When drilling through reinforcements, you might have to use greater initial pressure and if required
change to the next lower gear.
If the drill blocks, do not try to loosen it by switching the machine on and off. Switch the machine off
immediately and loosen the drill bit by turning right and left using a suitable wrench. Carefully remove the
machine from the borehole.
Take care not to cut a water-pipe or even an electric mains. In case of doubt use a line detector
for searching the drilling area.
6. M A I N T E N A N C E
ATTENTION: Before beginning maintenance or repair remove the mains plug from the
supply socket.
Clean the machine once the drilling work has been completed. Also clean and grease the drill bit-holding
thread.
Clean the machine with a dry or moist cleaning-rag and not with a jet of water.
Take care that especially casing, cord enterings and ON-OFF switch are not damaged,
resp. put the SR25/35/65/75 immediately out of operation if these parts are damaged, as
water can enter the machine and thus a considerable risk of electrical shock exists for the
operator. Further more it is probable that the large-scale electronic gets damaged
unrepairably.
In the SR-machine an operating hour counter is integrated which is set to 250 hours. After
Operation hours until next service (maintenance)
Total number of operated hours
Number of switch on cycles
Number of switch off cycles
Software version number of motor control
Software version number of I/O-control
Machine type
Here the last occurred errors (max. 24) are shown. Thereby index and
error code are flashing. The last error code flashes in double frequency.
20