27
Models 8752, 8756, 8757 Operating Procedures
140306
Step 6
Secure the air/mix pump. Place the pump collar over
thepump cy linder.(T he cross holes of the pump collar
should be on top.)
Figure 28
Alignthe driv e hole in thepis ton to the ball crank of the
motorr educer.A t the same time, align the locating pin
holein the pump cylinder t o the locating pin on the face
plate.
Figure 29
Slidet he pump collar upwards into the grooves on the
side of the face plate and secure the air /mix pump in
place by slipping the retaining pin through the cross
holes of the pump collar.
Figure 30
Note: Alignment of the air/mix pump is extremely
important. Severe and costly damage may occur if it is
not properly aligned.
Step 7
Lubricate both sides of the pressure switch
diaphragm.
Figure 31
Step 8
Place the diaphragm on the front face of the pressure
switch housing. The lubricant will act as an adhesive
to hold the diaphragm in place.
Note: DO NOT place the diaphragm in the pr essure
switch cap.
Step 9
Screw the cap onto the housing securely.
Figure 32
Repeat Steps1 through 8 for the other side of the
freezer on the Models 8756 and 8757.