HOLZMANN MASCHINEN FSM25AUTO Instrucciones De Servicio página 61

23 TROUBLESHOOTING
Danger due to electrical voltage! Manipulating the machine with the power supply up
may result in serious injury or death. Before carrying out any troubleshooting work,
always disconnect the machine from the power supply and secure it against
unintentional recommissioning.
Many possible sources of error can be excluded in advance if the machine is properly connected to
the mains.
If you are unable to carry out necessary repairs properly and/or do not have the required training,
always consult a specialist to solve the problem.
Fault
Machine does not start
Machine does not reach
speed
Grinding wheel cannot
be switched on
Machine vibrates strongly
Grooves on the grinding
surface
Bad grinding result
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WAR N I N G
Possible cause
 Machine is not connected
 Fuse or contactor broken
 Cable damaged
 Safety device not locked
 Hydraulicsystem
 Emergency stop button is pushed
 Extension cable too long
 weak power network
 Hydraulic pump is switched off
 Magnetic chuck is switched off
 Stands on uneven ground
 Motor mounting is loose
 Grinding wheel is not balanced
 Flange screw is loose
 Grinding wheel badly dressed
 Use unpropper grinding wheel
 To much grinding abrasion
 Feed of cross and longitudinal travel
 Grinding table does not move easily
 Surface of the magnetic chuck dirty
 Coolant
TROUBLESHOOTING
Remedy
Check all electrical connections

Change fuse, activate contactor

Replace cable

Check grinding wheel guard, grinding

table guard, cabinet
Check oil level; fill in if necessary

Unlock the emergency stop button

Exchange to suitable extension cable

Contact electrician

Switch on the hydraulic pump

Switch on magnetic chuck

Level new

Tighten the fixing screws

Balance the grinding wheel

Tighten the flange screw

Dress the grinding wheel

Select suitable grinding wheel

Reduce grinding abrasion

Adjust speed

Check central lubrication, refill oil if

necessary or shorten lubrication
interval
Clean magnetic chuck

Switch on coolant pump, adjust

coolant supply
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FSM25AUTO