Section 4.2
Machine Adjustments
400-088-120-02 4.2-13 Rev. Date: 10/2016
Cell fingers to close to pick up the pins that remain standing. The Sweep cycles to remove the
fallen pins (dead wood), and a shifter link pivots causing the fingers to open on the Table’s second
visit to the respot position. The Table and Sweep then return to the home position.
4.2.2.12 Table Home Position Adjustment
The Table drive shaft has a disc with a slot in it that provides feedback to the chassis via a sensor
when the table drive shaft reaches the home position. This position should be just before the Table
reaches the highest point in its cycle (top dead center), at approximately the 355 point of drive shaft
rotation. To adjust the Table’s home position:
1. Disengage the brake (see Figure 4.2-14), and manually crank the table to just before top dead center.
There should be a gap of approximately ½ inch between the table drive eccentric’s white nylon roller
and the rear edge of the cam link as viewed from above.
2. Loosen the setscrew in the collar that secures the home disc to the shaft, and rotate the disc
until the light on the sensor comes on indicating that the slot in the disc is aligned with the
sensor’s optics. Tighten the setscrew.
3. Run the Table through several cycles, and verify it is stopping at the desired position.
Because of the Table’s inertia, it may stop slightly
past the home position. This is normal. If the Table
runs considerably past the home position and stops
consistently at the same point, increase the gap
between the nylon roller and cam link, and then
reset the home disc at this new position. Excessive
coasting past the home position could indicate a
motor brake problem. You can observe the
operation of the brake by watching the motor
shaft and hexagonal hub in the center of the
brake. The shaft should stop abruptly when the
motor turns off.
4.2.2.13 Table Drive Eccentric Operation
The table drive eccentric controls the low points of table travel during the spot and respot cycles.
During a respot cycle, the eccentric’s latch is engaged locking the eccentric’s input and output sides
together, which only allows the table to lower to the respot height. When the spotting solenoid is
energized at the start of a spotting cycle, the eccentric’s latch is disengaged allowing the two sides
of the eccentric to operate independently. This permits the table to descend further for spotting a
set of pins.
Hold this lever down to
disengage brake.
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