Section 4.2
Machine Adjustments
400-088-120-02 4.2-25 Rev. Date: 10/2016
b. To decrease clearance between the sweep bar and the pin deck, move the end of the
telescoping link toward the rear of the pinspotter.
c. Repeat this adjustment on the other side of the machine to maintain both ends of the
sweep at the same height above the lane.
4. Manually crank the sweep to the #5 pin position (4-5-6 line). The sweep bar should clear the
pin deck by 3/16”. Use the pinspotter multigage (088-001-216) to check this.
a. To lower the sweep, loosen the pivot bracket’s mounting screws on the vertical frame
member and move the bracket up. To raise the sweep, move pivot bracket down.
b. Retighten the bracket’s mounting screws.
c. As necessary, repeat this adjustment on the other side of the pinspotter.
5. Set a pin on each side of the pin deck as far back as possible.
6. Continue cranking the sweep to its extreme back position. The sweep should just touch the
pins so that under power, the sweep should knock the pins into the pit. If the sweep does not
go back far enough, increase the length of the 10-1/8-inch long connecting rod. Do not
lengthen it more than is necessary. Under power, the sweep may collapse into the pit area.
7. Manually crank sweep to the home position. Recheck the stabilizing link for the correct
clearance. The long connecting rod may have to be readjusted in order to have sufficient
clearance.
8. Operate the machine under power and note sweep operation. If necessary, repeat the sweep
adjustments.
4.2.3.3 Sweep Home Position Adjustment
The Sweep drive shaft has a disc with a slot in it that provides feedback to the chassis via a sensor
when the drive shaft reaches the Home position. The Sweep’s Home position should be at the
highest point in its cycle. The Sweep’s Stabilizing Link should be approximately ½ inch from the
pinspotter’s frame (see Figure 4.2-28). To adjust the Sweep’s Home position:
1. Disengage the brake (see Figure 4.2-29) and manually crank the Sweep to the highest point of
its travel.
2. Loosen the setscrew in the collar that secures the home disc to the drive shaft, and rotate the
disc until a light on the sensor comes on indicating that the slot in the disc is aligned with the
sensor’s optics. Tighten the setscrew.
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