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G8144Z/G8145Z/G8146Z
Vertical Metal Cutting Bandsaw
Checking Wheel Coplanarity
1. DISCONNECT BANDSAW FROM POWER!
2. Remove the table assembly from the
machine.
3. Make sure the blade is correctly installed and
tensioned.
4. Hold a self-made coplanarity gauge (see
Figure 50) close to the center of both wheels,
making sure that the gauge fully extends
across the wheels as shown in
Figure 50.
— If the wheels are coplaner (in the same
plane), the gauge will evenly touch the top
and bottom of both wheels.
— If the wheels are NOT coplanar, place the
coplanarity gauge on the upper wheel first,
ensuring that it touches both the top and
bottom rim. Then adjust the lower wheel to
be coplanar with the upper wheel.
Note: The upper wheel of the Model G8146Z
can also be adjusted. To do this, refer to the
detailed instructions later in this subsection.
Adjusting Lower Wheel
1. Check the coplanarity of the wheels as
outlined above,
then identify the four wheel
adjusting assemblies of the bottom wheel
(see Figure 51).
Note: The lower wheel adjusting assemblies
have a locking hex bolt threaded into an
adjusting sleeve.
2. Use a 17mm wrench to loosen the locking
hex bolts.
3. Use a 21mm wrench to loosen or tighten the
adjusting sleeves as necessary to bring the
lower wheel coplanar with the upper wheel.
Example 1: If the top of the lower wheel
leans to far forward (see the top right exam
-
ple in
Figure 50), thread the top two adjusting
sleeves out.
Example 2: Alternately, if the lower wheel
is parallel to the upper wheel but behind the
plane of the upper wheel (see bottom right
example in
Figure 50), then thread all four
adjusting sleeves in.
4. Re-tighten the locking hex bolts to secure the
settings of the adjusting sleeves.
5. Re-check the wheels for alignment and repeat
the steps above if necessary.
6. Re-check the pulley alignment and V-belt
tension (
Page 41).
7. Re-install the table and check its alignment
with the blade (
Page 44).
Figure 51. Lower wheel adjusting assemblies.
Lower Wheel
Adjusting Assemblies
(3 of 4 shown)
checking coplanarity