MAINTENANCE
Maintenance
WARNING! Inspection and/or maintenance
!should be carried out with the motor switched off and the plug disconnected.
Cooling system
The machine is equipped with an efficient fan to cool the motor. Cooling air which is drawn in through the grille by the machines rear handle passes over the stator and rotor and out through the front of the motor housing.
In order for the machine to always be cooled sufficiently the cooling air openings must be kept clear and clean. Blow down the machine regularly with compressed air.
Electrical Feed
WARNING! Never use damaged cables. They
!can cause serious, even fatal, personal injuries.
Check that the cord and extension cord are intact and in good condition. Never use the machine if the cord is damaged, hand it in to an authorized service workshop for repair.
Replacing the carbon brushes
Check the carbon brushes at least once a month. The carbon brushes should be replaced with new brushes if they are worn, cracked or in any other way deformed.
All carbon brushes must be replaced when the brushes are replaced.
•Remove both inspection covers by loosening both screws.
•Unscrew the cable holding the carbon brush. Now lift up the spring and then lift out the carbon brush from the brush retainer.
•Clean the brush retainers with a dry brush.
•Carefully blow away the dust.
•Fit the new carbon brushes and, at the same time, check that they slide easily in the brush retainers.
•Fold down the springs and tighten the cable.
•New carbon brushes must be run in for approximately 40 minutes while idling.
Bevel gear
The grease in the gear housing should be changed every 4 months. Use high quality gear grease
The gear housing must not be filled completely with grease. The grease expands as the machine heats up during operation. If the gear housing was completely filled with grease it could damage the seals and lead to leakage of grease.
The gear housing should contain 90 g of grease in total.
16 – English
