Leister EXAMO 300F Instrucciones De Funcionamiento página 27

Operating faults and preventative measures
• Blockage of carriage on return passage
– If the carriage return is obstructed, the overload safety device will be activated.
– The trapezoidal thread nut (14) is released from the sliding carriage (12).
– The trapezoidal thread nut (14) moves to the safety position for return passage (17) of the drive shaft (6).
– The machine has to be stopped with the key
– In case machine is in modus « Wait for Initialize», operate spacer (13) manually.
– Start the machine with the key
– Move the trapezoidal thread nut (14) to the thread start for return passage (19) by hand. The trapezoidal
thread nut (14) is caught by the drive shaft (6) and moved in test direction.
– If at least one pitch of the screw thread on the drive shaft (6) is visible on the left hand side of the trapezoidal
thread nut (14), stop the machine with the key
– Push the sliding carriage (12) by hand until it stops at the trapezoidal thread nut (14).
– Switch off the machine with main switch (2) and switch it on again.
– Re-initialize the machine according to operating instructions on page 4.
• Overload safety device in test direction
– If the maximum allowable tensile load of 4000N is exceeded, the machine switches off automatically to
prevent damages.
– Relieve probe by pushing the key
– Remove sample.
– Fasten new sample and repeat test.
• Engine overload current
– The device always measures the engine record current. If the current exceeds the maximum permissible
current the engine is adjusted by reducing the engine speed. The < symbol appears on the display.
– Switch off drive with
– Remove sample.
– Clamp new sample and repeat test.
• Overrunning the end of drive shaft in test direction
– If the end of the test run is not recognised, the sliding carriage (12) goes to the safety position for test
direction (18).
– Stop machine with
– Start machine with
– Bring sliding carriage (12) by hand to the thread start for test direction (20).
– If at least one pitch of the screw thread on the drive shaft (6) is visible on the right hand side of the sliding
carriage (12), stop the machine with the
– Switch off the machine with the main switch (2) and switch it on again.
– Re-initialize the machine according to operating instructions.
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