Team SILK SX28-72, Instruction Manual

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SX28-72 Flange Facing Machine
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7. The balancing procedure is used to estimate the weight required to balance the
surfacing arm, toolpost and accessories. The toolpost should be located at the
mid-cut position, this should average out the out-of-balance effect as the toolpost
moves across the flange.
To balance the flange facing machine, proceed as follows:
8. Remove the eyebolt from the lifting boss located near to the feed gearbox and
place in a secure position for later use. Fit the main counterbalance plate by
locating the larger diameter hole over the lifting boss (see Fig. 20). Secure into
position with the balance weight washer and eyebolt previously removed. Locate
M16 cap screw through the counterbalance weight and tighten to secure onto
drive assembly. Ensure the plate is securely located on the drive assembly before
proceeding.
Fig. 20 Main counter balance plate
9. Attach a weight (large or small dependant on position of the arm) to the main
counterbalance plate and secure with the M16 screws and washers. The further
out the weight is positioned the greater counterbalance effect it has.
10. Remove the M16 cap head screw from the lifting boss located adjacent to the
surface arm and place in a secure position for later use. Fit the secondary
counterbalance plate (see Fig. 21). As above, attach a weight (large or small
dependant on position of the arm. To the plate and adjust as required to achieve
balance.
Fig. 21 Secondary counter balance plate
11. Once the plate and weights are attached slowly rotate the machine under power
(refer to 5.3.1 - Connection to the air supply) and observe the speed of rotation
is constant. If it is not the balance weights must be adjusted. An indication of a
balanced machine is to listen for any uneven motor tone as the arm passes 12
o'clock and 6 o'clock, a constant tone indicates the machine is in balance. If
Larger diameter
hole