Viking Pump TSM340.0: SG-04, -05, -07 - Manual (Page 3)

SECTION TSM 340 ISSUE G PAGE 3 OF 10
2. Be sure the inside of the pipe is clean before installing.
3. When approaching an obstacle to the suction line, go around instead of over it. Going
over an obstacle can create an air pocket. Where practical, slope the piping so no air or
liquid pockets will be formed. Air pockets in the suction line make it hard for the pump to
prime.
4. A strainer on the suction side of the pump should always be considered in any pumping
system. The strainer will keep foreign matter from entering the pump. The strainer mesh
or perforation size should be large enough so that it does not cause excessive pressure
drop, but fine enough to protect the pump. Use of a strainer is particularly important at
start up to help clean the system of weld beads, pipe scale and other foreign objects.
5. A pressure relief valve is required in the discharge line. See Pressure Relief Valves,
General page 1 item 4.
6. The pump must not be used to support the piping. Hangers, supports, stands, etc. must
carry the weight of the pipes.
7. When fastening piping to the pump do not impose any strain on the pump casing.
“Springing” or “drawing” the piping up to the pump will cause distortion, possible
misalignment and probable rapid wear of the pump. Do not use the 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 tape. Reduced friction makes over tightening
very easy and will result in cracked ports. Leaks in the suction line can permit air to be
drawn in, and will cause a noisy pump and reduction in capacity.
9. Drive alignment must be checked after piping is hooked up.
10. Provide a pressure relief device in any part of a pump and piping system that can be
valved off and, thus, completely isolated. A rise in temperature will cause a liquid to
expand. If there is no provision for pressure relief in the closed off section, there is a
chance that the pump or piping will rupture.
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.
STArT uP
Before pushing “start” button, check the following:
1. Are vacuum and pressure gauges (liquid filled) mounted on or near the pump? Gauges
are the quickest and most accurate way of finding out what is happening in the pump.
2. Is the pump is correctly aligned with the drive equipment?
3. Make sure there is no pipe strain on the pump ports.
4. Rotate the pump shaft by hand to be sure it turns freely.