Xylem Bell&Gosset 100 Series Instruction Manual

isell & Gossett
a xylem brand
Instructions for Replacing Booster Pump
Bearing Assemblies
WARNING: This product can expose you to chemicals including Lead, which is known
to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to: www.P65Warnings.ca.gov.
A
WARNING: Before proceeding with any of these instructions, make certain that power is disconnected and locked out. Electrical
.. power to the boiler and any related accessory must also be disconnected and locked out. Failure to follow these instructions
could result in injury or death.
A
CAUTION: Check surfaces for high temperatures, allow the pump/piping temperature to reach approximately 100 deg. F.,
.. before proceeding. Failure to follow these instructions could result in severe personal injury and/or property damage.
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CAUTION: Close the valves on the suction and discharge sides of the pump before proceeding. If no valves have been installed,
.. it will be necessary to drain the system. If it becomes necessary to drain the system, close the city water supply or shutoff valve to
the pressure reducing valve, allow the system to cool to approximately 100 deg. F., open the drain valve (take precautions
against water damage) and leave the drain valve open until servicing is completed. Failure to follow these instructions could
result in severe personal injury and/or property damage.
STEP
N0.1
The conduit box cover is removed as shown prior to removing
the motor for service. The wire nuts are removed and the flexible
conduit connector is then removed.
STEP
NO. 3
Use a box wrench to loosen the four motor cap screws and the
motor is free from the bearing assembly.
STEP
N0.5
Loosen the four body cap screws. Shift the bearing assembly
position slightly to allow for any pressurized water to escape.
Remove the four body cap screws.
(Pump shown is Series 100, replacement for other pumps is similar)
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INSTRUCTION MANUAL
STEP
N0.2
The coupler is loosened by means of backing off the set screw
with an Allen Wrench on the pump shaft coupler half. The
T-Handle Allen Wrench shown is provided with the B&G Service
Kit, but a conventional L-Handle will do the job.
STEP
N0.4
With the cap screws removed, the motor is backed off and if the
set screw is backed off the pump shaft sufficiently, the coupler
should slide free of the pump shaft. A screwdriver may be used
to pry it loose if tight.
STEP
N0.6
Pull the Bearing Assembly from the Pump Body.
S17673D