Pro Pack Solutions, Inc.

Celebrating 50 years of service from 1958-2008

 Measuring Wheel Tension Spring Setting  

(all machines)

Unplug machine from power source. Remove Key Drum Assembly. The tension on the clock spring is what returns the measuring wheel back to its starting position as soon as the feed cycle is completed and the clutch roller is released from contact with the measuring wheel. This tension is not critical, but must be enough to return the measuring wheel quickly, But not enough to cause so much resistance to the measuring wheel that slippage is encountered when the clutch roller is turning it during the feeding cycle.
The spring is carried in a metal cup mounted on the pivot shaft for the measuring wheel. The cup and spring can be rotated with respect to the measuring wheel after the retaining ring is removed. To rotate the cup it must be pulled out slightly so that the disengages from the two pins mounted on the measuring wheel hub. After the proper tension is achieved the cup must be returned to the pins to retain proper spring tension.

The following is the tension applied to each model at the factory:

Model 556
By turning the cup one full turn clockwise with the trip lever (FF160) resting against the Clutch Roller (EA52AXX).

Model 555L
With the bumper cup resting against the bumper plate, 1/2 turn counter
clockwise.

Model 555S
With the bumper cup resting against the bumper plate, 1/2 turn clockwise.

Model 554
With the stop discs set with the pointer set for 4" lengths, 1/2 turn counter clockwise.