Scotsman MCM1062R - Manual (Page 14)

ADJUSTMENTS
Adjustment Of The Timer & Switch Assembly
One complete revolution of the cam on the timer
represents eight minutes. If left as factory set, four
and one-half minutes comprise the freezing cycle
portion during cam rotation, and the final three and
one-half minutes is the defrost/harvest cycle.
Rotating the shaft of the timer cam clockwise will
put the ice machine in the freeze or harvest cycle.
////////////////////////////// WARNING ///////////////////////////////
Disconnect electrical power supply to icemaker
whenever adjustment procedures are performed.
///////////////////////////////////////////////////////////////////////////////
To adjust the timer & switch assembly:
1. Remove front panel.
2. Remove control box cover.
A. To start the HARVEST CYCLE: Slowly rotate
the shaft of the timer and switch assembly
clockwise until the actuator arm on the microswitch
begins the harvest cycle. An audible click can be
heard, but in a noisy area, look at the cam and
switch to observe the event
B. To start the FREEZING CYCLE: Slowly rotate
the shaft of the timer and switch assembly
clockwise, until the actuator arm on the
microswitch starts the freezing cycle.
C. To adjust the length of the harvest cycle:
1. Loosen the adjustment screw on the cam, and
rotate the shaft of the cam to move the top part of
the assembly. More of a gap between the high and
low portions will yield more harvest time.
2. Tighten the set screw.
3. Replace the control box cover and front panel.
lt is important that the length of the harvest cycle
allow enough time for all the ice cubes to fall from
the evaporator. Too short of a time will cause the
evaporator to freeze up and stop ejecting ice into
the bin. Too much time wastes icemaking capacity,
energy and water. Adjustment of the harvest cycle
may require an adjustment of the cube size
control.
TIMER CAM POSITIONS
MICROSWITCH
ACTUATOR
CAM &
SHAFT
HARVEST
PORTION
FREEZE
PORTION
TIMER ADJUSTMENT
SHAFT OF
CAM
MICROSWITCH
SET SCREW
MCM1062R
October 1993
Page 14