Huvema HU 320 UM TOPLINE, Manual

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CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
5.7 T
roUble sHooTinG
Trouble Probable cause Remedy
Uncommanded
machine
shutdown
Work table limit switch
actuated.
• Limit switch out of adjustment. Manually move worktable
until limit switch is clear of limit switch trip ramp. Adjust
limit switch actuation point and check operation.
• Limit switch failure. Manually move worktable until limit
switch is clear of limit switch trip ramp. Adjust limit switch
actuation.
Excessive
ballscrew noise
Low or no lubrication. • Pull out lever on one-shot lubrication system to lube
• ballscrews.
• Check lube level in lube reservoir. Replenish as required.
Worn ballscrew or ball nut.
• Replace ballscrew and ball nutassembly.
Drive motor
inoperative
Fuse blown. • Replace fuse.
Open windings in motor • Check for open motor windings. Replace motor if open
Frequency
motor inoperative
Fuse blown. • Replace fuse.
Open windings in motor. • Check for open motor windings. Replace motor if open.
Inverter failure/
programming error.
• Refer to Inverter documentation for
• the troubleshooting.
No or low
coolant flow.
Low coolant sump level. • Check coolant level. Replenish
• coolant as required.
Failed coolant pump. • Check pump for motor failure.
• Replace if motor failed.
Screens in trough of
machine baseclogged with
chips and machining debris.
• Remove material from screens.
Sludge or debris in inlet of
coolant
pump.
• Clean coolant sump to remove
• pump blockage.