Global Machinery Company BG150A - Manual (Page 11)

1. Drain all the water from the bath (10).
2. Remove the two securing screws at the top of the bath.
3. Loosen, but do not remove
the lower retaining screw.
4. Push the top clips of the
bath clear of housing and
then lower the bath clear of
the housing.
5. Using an 18mm spanner,
remove the wheel retaining
nut by turning the nut in an
anti-clockwise direction.
6. Remove the washer and the
outer flange, followed by
the wheel.
7. Ensure the new wheel
conforms to the replacement
wheel specifications in this
manual.
8. Ensure the clamping surfaces
are clean and fitted with
blotters.
9. Fit the wheel on to the
spindle and directly against
the inner flange.
10. Fit the outer flange against
the outer blotter of the
wheel, followed by the steel
washer and then the
retaining nut.
11. Tighten the retaining nut
firmly by rotating the
spanner in a clockwise
direction.
12. Replace the water bath in the reverse direction as the
removal procedure given above.
How to true and dress the wheels
Dressing a wheel cleans and levels the front surface to
increase efficiency of operation and prevent vibration.
1. Dressing a wheel involves the use of a wheel dresser
which is not supplied with the grinder. Follow the
manufacturers instructions of the wheel dresser.
2. Adjust the tool rest to allow the front part of the wheel
dresser to fit between the tool rest and wheel.
3. Start the motor and move the dresser across the front
of the wheel a sufficient number of times until the
surface is level. It is not necessary to apply excessive
force in an attempt to dress the wheel in one pass of
the wheel dresser.
4. Adjust the tool rest so that it is no more than 1-1.5mm
from the wheel.
5. Adjust the eye shield bracket to ensure the gap between
the bracket and wheels is less than 6mm.
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