TMS STRING PINSPOTTER OWNER’S MANUAL
400-051-010-01 Rev. Date: 7/17 Page 2-15
Procedure 2-4, Adjusting Drawbar Chain Tension
The drawbar chain must not be overtightened. The mechanism must have some
slack to it in order to extend the life of the pinspotter. Oil the chain with a very
small quantity of 10-weight motor oil only when absolutely needed. Remove all
excess oil from the chain and surrounding area on a weekly basis. The chain's
tension should be verified and adjusted monthly.
1. Open the Machine Power circuit breaker located on the top of the control chassis.
Apply LOTO contraints.
2. Unlock and open the top cover and visually check for a 1/4-inch (6mm) dip in the
middle of the chain (upper or lower portion) using a straight-edged tool. Too much of
a dip means the chain needs to be tightened, while too little dip means it is too tight.
Figure 2-5, Drawbar Chain
3. If adjustment is necessary, loosen the sprocket's nut (A) at the front of the chain and
adjust as necessary using the front end adjustment nut (B) (see Figure 2-6).
Outside View Inside View
Figure 2-6, Drawbar Chain Adjustment
4. Retighten the sprocket's nut (A).
5. Repeat this procedure for the chain on the other side of the machine. Both chains
must have approximately equal tension to prevent binding.
6. Remove LOTO. Close and secure the top cover, shut the Main Power circuit breaker,
and clear the Lane Breaker error message.
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