Service manual

4
Arrow showing direction of rotation
(located on front of scroll housing)
OUTLET OUTLET
Figure 1
Clockwise Rotation
(Available)
Figure 2
Counterclockwise Rotation
(Standard)
Inlet Flange
Assembly
Impeller
Pump Scroll
Rubber Mounts
(P/N 91906100)
Partial End View
1/8" NPT
Vacuum
Proving
Switch
Pump Assembly Instructions
Step 1
a. After determining the correct orientation of the pump scroll
outlet, attach the pump scroll to the pump frame using the
#10-24 Keps locknuts provided.
b. Spin the impeller to be sure that adequate clearance is
maintained between the impeller blades and the body of the
pump scroll.
Determine
Orientation of
Pump Scroll
An arrow is affixed to the outside of the pump scroll to indicate
the direction of rotation of the impeller. The standard rotation of
the impeller is in the counterclockwise direction.
Rotation of the impeller is as viewed from the rear of the motor as
shown in the Figure below. Note that the pump scroll outlet
must always be positioned at the bottom horizontal position.
Figure 3
EP-100 PUMP INSTALLATION, OPERATION AND SERVICE MANUAL