Advertisement
4. Maintenance
4.1 Spindle bearing
The bearing clearance is zero and self-adjusting. The spindle bearing is maintenance-free
and lubricated with HIGH-PRESSURE GREASE.
Use a grease gun to lubricate the spindle bearing every six months with high-pressure
grease (small grease nipple is located at the back of the VKA-110).
We recommend you use Klüber grease, Isoflex NBU 15, item no. 004026.
4.2 Ball holder (pos. 3)
The ball holder is worn when you can place the holder too far into the spindle, which
results in the ball holder gliding down on the spindle bottom. This, in turn, means that the
ball is not clamped tightly and glides around in the ball holder.
This is the case if you can spot tangential grinding marks on the surface of the released
spindle ball.
The spindle and the test ball in the spindle must run as true as possible. Damaged or dirty
ball holders cause the upper ball to run out, which leads to inaccurate measurement results.
Use a dial gauge to test the clearance and true running of the spindle from time to time
(ball run-out of maximally 0.03mm).
4.3 Standard ball cup (item no. 002.00426) and temperature-adjustable ball cup (item
no. 002.00145)
Check the pressure plate (item no. 002.00110/0012) and the clamping ring (item no.
002.00110/0011) for wear scars and/or scoring at regular intervals and replace the parts if
they are excessively worn.
If the pressure plate is damaged, turn it and continue using it.
If both sides of the pressure plate are worn, replace it.
4.4 Cutter holder
Check each cutter holder regularly.
The cutter holder consists of a cutting bolt (pos. 25) and a cutter holder plate (pos. 26).
Regularly lubricate the cutter holder, in particular if the machine operates at high loads.
29
Advertisement
