C065 - Check Telescopic Covers And Wipers - Index G220 Operating Instructions And Maintenance Instructions

C065 - Check telescopic covers and wipers
Orientation
Requirement
Procedure
46
Depending on the material used and the machining process, the telescopic covers
and wipers must be cleaned and checked regularly. In particular, before any
prolonged shutdown of the machine (e.g., during weekends).
Dirty telescopic covers and wipers affect the accuracy of the machine and its
service life.
Contamination of the telescopic covers and wipers results in increased friction
(stiffness) of the plates. This may damage the telescopic covers and wipers so that
contaminants can get into the area behind the telescopic cover. This in turn may
cause damage to other machine parts, requiring expensive repair. In the event of
damage, determine the cause of the damage and immediately notify the machine
manufacturer or its representative company.
After cleaning, the telescopic covers and wipers must be coated with
low-viscosity oil.
The oil must not resinify and sediments must not form when exposed
to other fluids or machining residues (e.g., metallic dust). Otherwise,
the service life of the wipers would be considerably impaired.
Before starting the cleaning, move the tool slides to positions that are more
convenient for the cleaning process.
Power off the machine and secure it against power on.
1. Clean telescopic plates. Remove chips with a suitable chip hook or hand-held
broom. Afterwards rub with a cloth.
2. Check telescopic and guide plates for damage. Look for deep scoring or
abrasion.
3. Oil the telescopic covers.
4. Switch the machine on and move the tool slides until an even film of oil is
visible over the whole travel range of the telescopic cover. If relubrication is
required, first stop the traversing motion and set feed rate override to "zero"
position.
Maintenance Summary - 2.000 Operating hours
Maintenance Instructions
G220
DIE017EN - 05.06.2019