JS AND JSV SERIES PUMPS
OM−03833
FM
APPROVED
PAGE C − 2
OPERATION
Do not start the pump more than 10 times
per hour. If the motor does not cool be-
tween starts it will overheat, resulting in
damage to the motor windings or control
box components.
When installed in a standard alternating
duplex
application, where one pump runs while the other
is shut down, the pump may be operated continu-
ously until fully exposed. The shut down cycle will
provide sufficient time for the motor to cool.
Impeller Rotation
Check impeller rotation as follows before installing
the pump on rails or in a wet well.
While checking impeller rotation, secure
the pump to prevent the motor power
cable from coiling.
Suspend the pump by the lifting handle. Apply
power briefly and note the direction of pump kick-
back. As viewed from the top, the pump should
kick in a
counterclockwise
direction; this will indi-
cate that impeller rotation is correct.
If the pump kicks in a
clockwise
direction, impeller
rotation is incorrect. If the pump is powered by a
three-phase motor, have a qualified electrician in-
terchange the control box connections of any two
pump motor power leads. Re-check pump kick-
back; it should now be in a counterclockwise direc-
tion.
If rotation is incorrect on a single-phase motor, con-
tact the factory before installing the pump.
STARTING, STOPPING, AND
OPERATIONAL CHECKS
Starting
Do not attempt to operate the pump until
impeller rotation has been checked; im-
proper rotation will affect pump perform-
ance and may damage the pump.
Follow the instructions accompanying the control
box, start the pump, and run any recommended
checks.
Stopping
Follow the instructions accompanying the control
box for stopping the pump.
The integral thermal overload device
will
shut off the motor if the temperature
rises above design limits. When the
pump cools and the temperature falls
below these limits, the motor will restart
automatically. To avoid the hazards of
an unexpected motor start-up, do not at-
tempt to handle or service the pump un-
less all power to the motor has been
shut off and locked out at the control
box; otherwise, serious personal injury
could result.
During motor shutoff by the thermal
overload device, control box circuits re-
main live. Do not attempt to service any
control box components unless incom-
ing power has been shut off.
After stopping the pump, be sure to perform all re-
quired maintenance and preservation procedures.
