Viking Pump TSM341.1: SG Mag Drive Series - Manual (Page 5)

SECTION TSM 341.1 ISSUE J PAGE 5 OF 19
START UP
Before pushing the “start” button, check the following:
1. Vacuum and pressure gauges (liquid filled) are mounted
on or near the pump. Gauges are the quickest and most
accurate way of finding out what is happening in the
pump.
2. The pump is correctly aligned.
3. There is no pipe strain on the pump.
4. Pump turns freely by hand. If the unit features a bearing
carrier then rotate the flexible coupling, but if the unit is
motor mounted then carefully try to turn the motor fan
blades to turn the pump over.
5. The motor has been jogged and is running in the correct
direction. Refer to “ General” page 4 item 3.
6. A pressure relief valve is installed properly.
7. The suction piping is connected and tight, and the valves
are open.
8. The discharge piping is connected and tight, the valves
are open and there is a place for liquid to go.
9. All guards are in place.
The above checklist is a general guideline to be used prior to
starting the pump. Since Viking Pump cannot foresee every
application for our product and possible system design, final
responsibility is with the user. The pump must be utilized
within the catalog specifications and the pump system must
be designed to provide safe working conditions.
MAINTENANCE
CLEANING UNIT: Keep the pump, coupling and motor as
clean as possible. This will facilitate inspection, adjustment
and repair work.
STORAGE: If the pump or coupling are to be stored, drain
pump and pour non-detergent SAE 30 weight oil into pump
port. Apply grease to pump or coupling shaft extension, if
present or accessible. Viking suggests rotating the pump
shaft every 30 days to circulate the oil in the pump. The pump
and coupling should be stored in a dry area. Note: if the liquid
to be pumped reacts with oil, use an acceptable alternate.
SUGGESTED REPAIR TOOLS: The following are required
to properly repair a SG/SGN Series Mag Drive pump. The
tools are in addition to standard mechanics tools such as
open end wrenches, pliers, screw drivers, etc. Most of the
items can be obtained from an industrial supply house.
1. Soft face hammer
2. Allen wrenches
3. Internal snap ring pliers (for bearing carriers only)
2-810-029-047-999
4. External snap ring pliers 2-810-029-375
5. Arbor press
6. Torque wrench
7. When fastening the piping to the pump, it should not
be necessary to impose any strain on pump casing.
“Springing” or “drawing” piping up to the pump will cause
distortion, possible misalignment and probable rapid
wear of the pump. Do not use pump to correct errors in
piping layout or assembly.
8. All joints of piping system must be tight; liquid thread
sealant will help assure leak free threaded joints. Loose
joints result in liquid leaks or suction side leaks. Air leaks
make the pump noisy and reduce flow. CAUTION: Be
careful not to over tighten fittings as this can cause
cracked joints. Do not use PTFE / plumber’s tape.
Reduced friction makes over tightening very easy and
will result in cracked ports.
9. Drive alignment must be checked after the piping is
hooked up.
10. Provide a pressure relief device if any part of a pump
and piping system that can be valved off, thus completely
isolated. A rise in temperature will cause liquid to expand.
With no provision for pressure relief in the closed off
section, there is a chance that the pump or piping will
rupture.
Push the “start” button. The pump should begin to deliver
liquid within 15 seconds!
If the pump does not deliver liquid, push the stop button. Do
not run the pump without liquid flow longer than 30 seconds
because the pump or coupling could be damaged or ruined.
Review steps just outlined. Consider what the suction and
discharge gauges indicate. Since the pump will not develop
much pressure when filled with air, it may be necessary to
vent the discharge line until liquid begins to flow.
Reprime the pump and push the “start” button again. If the
pump still does not deliver liquid, consider one or more of the
following:
1. Suction line air leaks.
2. The end of the suction pipe is not submerged deep
enough in liquid.
3. Suction lift is too great or suction piping is too long.
4. Liquid is vaporizing in the suction line before it gets to
the pump.
5. Magnetic coupling is decoupling for some reason.
If after consideration of these points, the pump still does not
deliver liquid, review all points given under START UP and
read through the TROUBLESHOOTING guide (page 16)
and try again. If pump still will not deliver liquid, contact your
Viking Pump supplier.
DANGER !
Before starting pump, be sure all drive
equipment guards are in place.
Failure to properly mount guards may result in
serious injury or death.