Tally T6218, Maintenance Manual Supplement

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T6218 Maintenance Manual Supplement
22 Tally Printer Corp. P/N 1149-084775
Figure 3. Wedge Location
Note: When reinstalling the Hammer Bank, install and tighten the retainer
clips removed in Step 4 before installing and tightening the RIGHT
KEPS nuts. Leave the lower left KEPS nuts off temporarily.
Step 9:
After the retainer clips and lower right hex KEPS nuts are installed and
tightened, the tension on the lower left linear bearing must be set. This
is done by GENTLY
sliding the “wedge” under the lower left linear
bearing until it’s just finger-pressure snug.
Figure 4. Adjusting Wedge Pressure
Caution: This is a critical assembly step! The function of the “wedge” is to
maintain the vertical position of the lower left linear bearing housing,
while not causing ANY upwards or downwards force when the KEPS
nuts are tightened. Pushing the “wedge” in too far or not far enough
will over-stress the linear bearings and cause severely reduced linear
bearing life.
Wedge