Viking Pump TSM442: GG-AL 4195-G LP-Gas - Manual (Page 3)

SECTION TSM 442 ISSUE C PAGE 3 OF 10
SPECIaL INfORMaTION
DaNgER !
before opening any Viking pump liquid
chamber (pumping chamber, reservoir, relief
valve adjusting cap fitting etc.) be sure:
1. That any pressure in the chamber has
been completely vented through the
suction or discharge lines or other
appropriate openings or connections.
2. That the driving means (motor, turbine,
engine, etc.) has been “locked out” or
made non- operational so that it cannot
be started while work is being done on
pump.
3. That you know what liquid the pump
has been handling and the precautions
necessary to safely handle the liquid.
Obtain a material safety data sheet
(MSDS) for the liquid to be sure these
precautions are understood.
failure to follow above listed precautionary
measures may result in serious injury or
death.
MaINTENaNCE
Model 4195 pumps are designed for long, trouble free life
under a wide variety of application conditions with a minimum
of maintenance, however the following should be considered:
1. END CLEaRaNCE aDJUSTMENT: After long term
operation it is sometimes possible to improve the
performance of the pump, without major repair, through
adjustment of end clearance of the pump Refer
to instructions under Reassembly of the pump for
information regarding this procedure
2. CLEaNINg THE PUMP: It is good practice to keep the
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
3. STORagE: If the pump is to be stored or not used for
any appreciable length of time it should 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 Series 4195 These tools are
in addition to standard mechanics’ tools such as open end
wrenches, pliers, screwdrivers etc Most of the items can be
obtained from an industrial supply house
1. Soft Headed Hammer
2. Allen Wrenches
(some mechanical seals and set collars)
3. Mechanical seal installation sleeve
4. Bearing locknut spanner wrench
(Source: #471 J H Williams & Co or equal)
5. Brass Bar
6. Arbor Press
ROTATION: Viking pumps operate equally well in a clockwise
or counterclockwise rotation When rotation changes, the
suction and discharge is reversed
PRESSURE RELIEF VALVES:
1. Viking pumps are positive placement pumps and must
be provided with some sort of pressure protection
Series 4195-G pumps are available with a return to tank
or standard relief valve, as options
2. If pump rotation is to be reversed during operation,
pressure protection must be provided on both sides of
pump
3. Relief valve adjusting screw cap must always point
towards suction side of pump If pump rotation is
reversed, remove pressure relief valve and turn end for
end
4. Pressure relief valves cannot be used to control pump
flow or regulate discharge pressure
For additional information on pressure relief valves, Refer
to Technical Service Manual TSM000 and Engineering
Service bulletin ESb-31.
SPECIAL MECHANICAL SEALS:
Extra care should be taken in repair of these pumps Be sure
to read and follow all special instructions supplied with your
pump