Operation
5
For parts or assistance, call Master Plumber Customer Service at 1-800-628-9439
1. The shaft seal depends on water for lubrication.
Do not operate the pump unless it is submerged
in water; running it dry may damage the seal.
2. If the pump overheats, an automatic-reset
thermal protector cuts off the power and stops
the motor before it can be damaged. The motor
will automatically restart when it cools. If the
protector trips repeatedly, unplug the pump,
remove it from the sump, and check it for the
cause of the difficulty. Low voltage, long
extension cords, clogged impeller, very low lift, a
plugged or frozen discharge pipe, etc., can all
cause cycling and overheating.
3. This pump will not remove all the water in the
sump. If you are running the pump manually and
water stops coming out of the discharge, the
pump has probably run dry. Shut it off
immediately and check the water level.
TM
E.I. DuPont De Nemours and Company Corporation, Delaware.
Sump
Pit
Check Valve
(Install Vertically)
Basement
Floor
Discharge
Pipe
Lift
Figure 7
LIFT:
Lift is the vertical distance the pump actually lifts
water. The higher the lift, the lower the flow.
NOTICE
: The friction caused by water running through
the pipe will also, on longer pipe runs, reduce the flow.
GPH AT TOTAL FEET OF LIFT
(See Figure 7)
Model
5 ft.
10 ft.
15 ft.
20 ft.
CAPACITY GALLONS/HOUR
633752
4,380
3,840
3,300
2,340
28’
633766
4,700
4,100
3,500
2,820
32’
No flow
at height
shown
below
PERFORMANCE
Individual
Switch Setting
Motor
Branch
in inches
Motor Full Load
Circuit
Model
HP
Amps
Req.(Amps)
On
Off
633752
1/2
6.3
15
6-1/2"
3"
633766
3/4
7.0
15
6-1/2"
3"
ELECTRICAL & SWITCH SPECIFICATIONS
