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2.6.2 Removing the ball holder
Caution: risk of injury!
Remove the ball holder only when the motor is switched off. Make sure that the spindle
does not rotate.
Switch off the VKA motor.
When the spindle has come to a complete stop, press down the release lever (pos. 32) to
release the ball cup.
Use the drill drift supplied (pos. 9) to loosen the ball holder in the spindle as well as the
clamped ball. To loosen the ball holder, insert the drill drift into the crossways slot of the
spindle and then bend it downwards.
Warning:
Don't hit the ball holder to remove it from the spindle; hitting it will damage the
spindle bearing.
Use the drift punch (pos. 18) to remove the ball on the mounting plate opening from the
ball holder.
2.7 Standard ball cup and temperature-adjustable ball cup
Feed three test balls into the standard ball cup (item no. 002.00426) and the temperature-
adjustable ball cup (item no. 002.00145) by using the pressed pressure plate (pos. 12).
Place the clamping ring (pos. 11) on the balls in the ball cups with the polished conical
surface pointing downwards. The conically shaped clamping ring centres the test balls in
the ball cup.
Tighten the clamping nut (pos. 13) to fix the three test balls. To do so, insert the square of
the ball cup into the mounting plate. Use the HANSA Press wrench (pos. 16) to tighten the
ball cup clamping nut to ensure that the balls are fixed and cannot move.
The high forces occurring during the welding process would destroy the pressure plate and
the clamping ring as the balls rotate too.
Afterwards fill test lubricant into the ball cup.
Fill only as much test lubricant into the ball cup as you need to ensure that the lubricant
level is about 3mm above the three clamped-in test balls (about 75ml)
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