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Holzmann ED300ECO Instrucciones De Servicio página 59

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Fault
Machine does not start
Machine does not reach speed
Machine vibrates strongly
Lathe tool has a short tool life
Cutting edge breaks out
Turned thread is wrong
HOLZMANN MASCHINEN GmbH www.holzmann-maschinen.at
Possible cause
Machine is not connected
Fuse or contactor broken
Cable damaged
Safety device not locked
 Extension cable too long
 Motor not suitable for existing
voltage
 weak power network
Stands on uneven ground
Motor mounting is loose
Hard cast skin
Too high cutting speed
Too large infeed
Too little cooling
 Wedge angle too small (heat
build-up)
 Abrasive cracks due to incorrect
cooling
 Too much play in the spindle
bearing (vibrations occur)
 Thread chisel is incorrectly
clamped or incorrectly ground
 Incorrect thread pitch
 Incorrect diameter
TROUBLESHOOTING
Remedy
Check all electrical connections
Change fuse, activate contactor
Replace cable
Check spindle protection
Exchange to suitable extension
cable
See switch box cover for correct
wiring
Contact electrician
Level new
Tighten the fixing screws
 Break casting skin beforehand
 Choose lower cutting speed
 Lower infeed (finishing
allowance)
not more than 0.5 mm)
 More cooling
 Select a larger wedge angle
 Uniform cooling
 Adjust play in the spindle
bearing. Replace tapered roller
bearing if necessary.
 Set lathe tool to centre
 Grinding angles correctly
 Set the correct gradient
 Pre-turn workpiece to exact
diameter
59
ED300ECO

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