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To adjust the mix pump for a lower over-run, refer to
Figure 14, and follow the adjustment procedures below:
CAUTION
THE MIX PUMP SWITCH MUST BE IN THE OFF
POSITION WHEN SERVICING OR CLEANING
PUMP.
A. Remove two knobs and safety guard covering drive
mechanism.
CAUTION
THE
DRIVE MECHANISM MUST BE
POSITIONED AT THE BOTTOM OF THE
STROKE.
B. The position of the stroke is adjusted by loosening
the jam nut (B) above the drive clevis (C), and then
turning the drive clevis down for a lower over-run.
The drive clevis and yoke stud (A) must be engaged
by a minimum of four full threads.
4.2
PRESSURE CONTROL SWITCH
The pressure control switch control the pressure at
which the mix pump cuts in or out. This switch can not
be adjusted.
Pressure gauge manifold accessory kit (Part No.
1156527) is available to check pressures.
CAUTION
DISCONNECT ELECTRICAL SUPPLY TO MIX
PUMP BEFORE SERVICING.
A. Install the pressure gauge kit into the pressure
switch. Figure 15.
NOTE
Figure 15. Pressure Gauge
B. Connect electrical input power to the mix pump.
C. The pressure check must be made with either water
or mix in the freezer cylinder.
D. Place the mix pump switch in the ON position and
check pressures.
4.3
PREVENTIVE MAINTENANCE
It is recommended that a preventive maintenance
schedule be followed to keep the mix pump clean and
operating properly. The following steps are suggested
as a preventive maintenance guide.
NEVER ATTEMPT TO REPAIR OR PERFORM
MAINTENANCE ON MIX PUMP UNTIL ALL
MAIN ELECTRICAL POWER HAS BEEN
DISCONNECTED.
The United States Department of Agriculture and the
Food and Drug Administration require that lubricants
used on food processing equipment be certified for this
use. Use lubricants only in accordance with the
manufacturer's instructions.
14
WARNING
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