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M412616
ACCESSORY TIMING CAM INSTALLATION
(Coin Meter Models)
INSTALLATION OF NEW TIMING CAM
1. Insert drive into timing cam with wide prong in
wide hole of cam.
2. Position timing cam and drive fork over the timer
shaft, aligning the timer flat with the drive fork and
the "V" notch with one of the ratchet teeth.
3. Press timing cam down firmly to seat timing cam
onto the motor shaft.
REMOVAL OF EXISTING TIMING CAM
1. Rotate cam by hand until "V" notch lines up
beneath the ratchet tooth see
Figure 28.
2. Insert narrow screwdriver under nylon cam, close
to the clock shaft. Lift gently off shaft. Make sure
that pressure is directed upward and that the "V"
notch clears the ratchet tooth.
Figure 28
T039IE1A
LINE UP NOTCH
TO CLEAR RATCHET
TOOTH
LIFT GENTLY
WITH NARROW
BLADE
4. Remove all accumulated time by turning cam
counterclockwise until switch shuts off. Apply
moderate clockwise pressure to fully seated
timing cam and drive against the timing motor
shaft. Meter must be advanced electrically for one
cycle before an accurate measure of time can be
made.
Figure 27
No. of Pins in Cam
6
5
4
Cycle Length (Minutes)
10
12
15
Cams that allow other timer increments are available
through your distributor.
To figure time increments, use this formula: Timer
Motor Speed (60) divided by number of pins on
cam = Cycle Length (minutes). Cams are available
with 1 to 12 pins.
Example: 60 ÷ 5 (Pin cam) = 12 minute cycle.