Huvema HU 50 G-4 TOPLINE, Instruction Manual

Page: 11 / 24

16. T
roubleshooting
Trouble Possible cause Solution
Main switch interruption while volts Adjust input voltage and draw back the main
irregula switch
No running after Break down of fuse in switch box Replace with new one
switch on
In case of too much current, Press the overload relay, and it will
the overload relay jumps away return to the correct position
automatically
Overload Decrease the load of feed
Lower voltage Adjust to accurate voltage
Spoiled contact point of magnetic Replace with new one
Motor Overheat
switch
Breakdown of overload relay Connect it or replace with new one
and no power
Motor is poor Replace with new one
Break down of fuse or poor contact Switch off power
with wire (it is easily, to spoil motor source at once and replace fuse with new one
while short circuit)
The temperature of
Grease is insufficient Fill the grease
The spindle beating is fixed too tight turning with no speed and feel the tightness
spindle bearing is
with hand.
too hot
Turning with high speed for a long time Turn it to lightly cutting
Lack of power Motor has burned out Change a new motor
with main spindle
Fuse has burned out Replace with new one
revolving
Table travel has not
The gap of spindle taper too wide Adjust bolt in proper
Loosening of leaf bolt Turn and fasten in place
balanced
Feed too deep Decrease depth of feed
The gap of spindle bearing too wide Adjust the gap in proper or replace bearing
with new one
Shake of spindle
Spindle loosening up and down Make two of inner bearing covers on the top
tight each other. Do not over-tighten two inner
and roughness of bearing covers with the taper bearing; it is ok as
working surface has long as no gap between them
taken place during
The gap of taper sliding locks too wide Adjust the tension of bolt in proper
performance
Loosening of chuck Fasten chuck
Cutter is dull Re-sharpen it
Work-piece has not hold firmly Be sure to tighten work-piece
Micro feed does not
Loosening of clutch Be sure to tighten it
Worm and worm shaft has worried out Replace with new one
work smoothly
Loosening of hand-wheel fixed screw Be sure to tighten it.
The balance of the work piece must be considered as the principle balance
while holdingwork-piece
Without accuracy in Often use of hammer to strike work Forbidden to use hammer to strike work-piece
performance piece
Unaccurate horizontal table Cheek and maintain table for keeping accurate
horizontal after a period of use
Excessive vibration
Motor out-of-balance Balance or replace problem motor
Bad motor Replace motor
11