Tally T6090, Maintenace Manual

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T6090 Maintenance Manual
4–38
STEP 5. Gently turn the upper drive shaft pulley (without belt) manually until the gauge or paper is
snug.
STEP 6. Install the upper drive belt. (The phasing gauge or paper must be kept snug during this step).
STEP 7. Loosen the one screw holding the paper drive motor snug. Adjust the tension on the upper belt
by pushing the motor down towards the floor and tighten the screws. At this point, check the
tension by using tension gauge (#081148) in tool kit (#081147). Lay the angled end of tension
gauge on the inside half of the paper drive motor pulley until the gauge comes in contact with
the idler phase pulley. The spring loaded pin on the gauge should be flush with the plastic
casing of the gauge for proper tensioning. If the pin is extended out to the second shoulder,
tension is too tight. If the pin is not flush with casing, tension is too low. Adjust paper drive
motor positioning until proper tension is achieved.
Lower Belt
Paper Drive
Pulley
Paper Drive
Pulley
Paper Drive
Pulley
Lower Idler
Bracket
Lower Shaft
Pulley
Tension Gauge
Upper Belt
Inside Pulley
Outside Pulley
Idler Phase
Pulley
Tension Gauge
Tension Gauge
Indicator
Tension Gauge
Indicator
Figure 4–35. Paper Drive Belt Adjustment
STEP 8. Loosen the screw securing the lower idler bracket and slide it down to adjust the lower belt
tension. Lay the angled end of the belt tension gauge on the outside half of the paper drive
motor pulley until it touches the lower shaft pulley. Adjust the position of the lower idler
bracket until proper tension is achieved.