35
7.3 - Regulating arm blockage
If there is insufficient blockage of the head arm in the de-
sired position, slacken the screw (1) on the lever, hold the
bush (2) in position, turn the lever to the left and tighten
the screw.
BEFORE PERFORMING THE FOLLOWING OPERATIONS, THE ELECTRIC POWER
SUPPLY AND THE POWER CABLE MUST BE COMPLETELY DISCONNECTED.
7.4 - Changing the blade
To change the blade:
•
Release the mobile guard and turn it back.
•
Block a piece of wood in the vice and lean the blade
on it.
•
Insert the special spanner provided and remove the
screw (1), slackening it in a clockwise direction be-
cause it has a left-handed thread, then slip off the
flange that holds the blade.
•
Fit a new blade, checking the cutting direction of the
teeth, then replace the flange, the screw and the mobile
guard.
7.5 - Changing the lubricating coolant pump
•
Take off the pipes of the lubricating-refrigerating system.
•
Remove the fastening screws and replace the little pump, being careful to keep the driving stem
centred on the drive shaft bearing.
8 ROUTINE AND SPECIAL MAINTENANCE
The maintenance jobs are listed below, divided into daily, weekly, monthly and six-monthly inter-
vals. If the following operations are neglected, the result will be premature wear of the machine and
poor performance.
8.1 - Daily maintenance
•
General cleaning of the machine to remove accumulated shavings.
•
Top up the level of lubricating coolant.
•
Check the blade for wear.
•
Lift the head into a high position to avoid yield stress on the return spring.
•
Check functionality of the shields and emergency stops.
8.2 - Weekly maintenance
•
More accurate general cleaning of the machine to remove shavings, especially from the lubri-
cant fluid tank.
•
Clean the filter of the pump suction head and the suction area.
•
Clean and grease the screw and the sliding guide of the vice.