Viking pump MAG DRIVE 855 SERIES Technical & Service Manual Download Page 2

Page: 2 / 16

SECTION TSM

685.2

ISSUE

PAGE 2 OF 16

BEfORE

opening any liquid chamber (pumping

chamber, reservoir, relief valve adjusting cap fitting,
etc.) be sure that :

●

Any pressure in the chamber has been completely
vented through the suction or discharge lines or
other appropriate openings or connections.

●

The  pump  drive  system  means  (motor,  turbine,
engine,  etc.)  has  been  “locked  out”  or  otherwise
been  made  non-operational  so  that  it  cannot  be
started while work is being done on the pump.

●

You  know  what  material  the  pump  has  been
handling,  have  obtained  a  material  safety  data
sheet  (MSDS)  for  the  material,  and  understand
and follow all precautions appropriate for the safe
handling of the material.

BEfORE

operating the pump, be sure all drive guards

are in place.

DO NOT

operate pump if the suction or discharge

piping is not connected.

DO NOT

place fingers into the pumping chamber or

its connection ports or into any part of the drive train
if there is

any possibility

of the pump shafts being

rotated.

DO NOT

exceed the pumps rated pressure, speed, and

temperature, or change the system/duty parameters
from those the pump was originally supplied, without
confirming its suitability for the new service.

BEfORE

operating the pump, be sure that:

●

It is clean and free from debris

●

all valves in the suction and discharge pipelines

are fully opened.

●

All piping connected to the pump is fully supported

and correctly aligned with the pump.

● P

ump rotation is correct for the desired direction

of flow.

INSTALL

pressure gauges/sensors next to the

pump suction and discharge connections to monitor
pressures.

USE

extreme caution when lifting the pump. Suitable

lifting devices should be used when appropriate. Lifting
eyes installed on the pump must be used

only

to lift

the pump,

not

the pump with drive and/or base plate.

If the pump is mounted on a base plate, the base plate
must be used for all lifting purposes. If slings are used
for lifting, they must be safely and securely attached.
For weight of the pump alone (which does not include
the drive and/or base plate) refer to the Viking Pump
product catalog.

DO NOT

attempt to dismantle a pressure relief valve

that has not had the spring pressure relieved or is
mounted on a pump that is operating.

AVOID

contact with hot areas of the pump and/or

drive.  Certain  operating  conditions,  temperature
control  devices  (jackets,  heat-tracing,  etc.),  improper
installation,  improper  operation,  and  improper
maintenance can all cause high temperatures on the
pump and/or drive.

THE PUMP

must be provided with pressure protection.

This may be provided through a relief valve mounted
directly on the pump, an in-line pressure relief valve,
a torque limiting device, or a rupture disk. If pump
rotation may be reversed during operation, pressure
protection must be provided on

both

sides of pump.

Relief  valve  adjusting  screw  caps  must  always  point
towards suction side of the pump. If pump rotation is
reversed, position of the relief valve must be changed.
Pressure relief valves cannot be used to control pump
flow  or  regulate  discharge  pressure.  For  additional
information, refer to Viking Pump’s Technical Service
Manual  TSM  000  and  Engineering  Service  Bulletin
ESB-31.

THE PUMP

must be installed in a matter that allows

safe access for routine maintenance and for inspection
during operation to check for leakage and monitor
pump operation.

WARNING

SAfETY INfORMATION AND INSTRUCTIONS

Danger -

Failure to follow the indicated

instruction may result in serious injury

or death.

Warning -

In addition to possible serious

injury or death, failure to follow the