GORMAN-RUPP PUMPS SBM-00192, Инструкция по установке, эксплуатации и обслуживанию

Страница: 15 / 38

JD Series OM-05724
PAGE C - 2 OPERATION
Review all SAFETY information in Section A.
Follow the instructions on all tags, labels and
decals attached to the pump.
CONTROLS
The pump warranty is void if the motor is
not operated through a control box ap­
proved by Gorman‐Rupp.
See the operating instructions furnished with the
control box, and with other optional accessories
and controls, before attempting to start the pump.
PUMP OPERATION
Liquid Temperature and Overheating.
Standard versions of this pump will handle
liquids with temperatures up to 104
_
F
(40
_
C) maximum. Do not install in service
with higher liquid temperatures; otherwise,
pump components and operation may be
affected.
Overheated pumps can cause severe
burns and injury. If the pump becomes
overheated:
1. Stop the pump immediately.
2. Allow the pump to completely cool.
3. Refer to instructions in this manual
before restarting the pump.
Overheating can occur if the pump is misapplied; if
the control box fails to provide overload or thermal
protection, or if the pump is operated against a
closed discharge valve for an extended period of
time.
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.
These pumps are equipped with cooling jackets,
which do not require an outside source of cooling
water; liquid being pumped is forced through a
narrow opening behind the impeller and circulated
through the cooling jacket.
Impeller Rotation
Refer to Figure C-1, and check impeller rotation
as follows before installing the pump in a wet well.
FIGURE C-1. PUMP ROTATION
While checking impeller rotation, secure
the pump to prevent the motor power
cable from coiling.