Viking Pump TSM110.2: Heavy Duty LV3900 - Manual (Page 3)

CLEANING PUMP: It is good practice to keep pump as clean
as possible. This will facilitate inspection, adjustment and
repair work and help prevent omission of lubrication to fittings
covered or hidden with dirt.
STORAGE: If pump is to be stored, or not used for six months
or more, pump must be drained and a light coat of lubricating
and preservative oil should be applied to the internal parts.
Lubricate all fittings.
SUGGESTED REPAIR TOOLS: The following tools must
be available to properly repair Model LV3900 pumps. These
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 Headed hammer
2. AlIen wrenches
3. Packing hooks, flexible
4. Bearing locknut spanner wrench
(Source: #471 J. H. Williams & Co. or equal)
5. Spanner wrench, adjustable pin type for use on double
end caps (Source: #482 J. H. Williams & Co. or equal)
6. Brass bar
7. Arbor press
SECTION TSM 110.2 ISSUE C PAGE 3 OF 6
Rotation: The Model LV3900 is bi-rotational. When rotating
CW, the suction port is the side port. When rotating CCW,
the suction port is the top port.
MAINTENANCE
Model LV3900 pumps are designed for long, trouble-free
service life under a wide variety of application conditions with
a minimum of maintenance. The points listed below will help
provide long service life.
LUBRICATION: Before each use, external lubrication should
be applied slowly with a handgun at all 4 lubrication fittings
provided. A good quality of general purpose grease is
satisfactory in the majority of cases, however, applications
involving very high or low temperatures may require other
types of lubricants. Do not over-grease. Consult the factory if
you have specific lubrication questions.
PACKING ADJUSTMENT: New packed pumps require initial
packing adjustment to control leakage as packing ‘runs in”.
Make initial adjustments carefully and do not over-tighten
packing gland. After initial adjustment, inspection will reveal
need for packing gland adjustment or packing replacement.
Refer to instructions under Disassembly and Assembly
regarding repacking the pump.
PACKING
GLAND
IDLER
PIN
HEAD
CASING
ROTOR
PACKING
BEARING
HOUSING
ASSEMBLY
SHAFT
BRACKET
FIGURE 2
(PUMP SHOWN FOR NOMENCLATURE REFERENCE ONLY)
IDLER