Sterlco 6017 Series, Operation And Installation Manual

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SPECIAL INFORMATION
ROTATION: Viking pumps operate equally well in a
clockwise or counterclockwise rotation. Shaft rotation
determines which port is suction and which is discharge. Port
in area where pumping elements (gear teeth) come out of
mesh is suction port.
PRESSURE RELIEF VALVES:
1. Viking pumps are positive displacement pumps and
must be provided with some sort of pressure protection.
This may be a relief valve mounted directly on the pump,
an inline pressure relief valve, a torque limiting device or
a rupture disk.
2. There are relief valve options available on those pump
models designed to accept a relief valve. Options may
include a return to tank relief valve and a jacketed relief
valve. Pumps equipped with a jacketed head plate are
generally not available with a relief valve.
3. If pump rotation is reversed during operation, pressure
protection must be provided on both sides of pump.
4. 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.
Refer to Figures 1 and 2.
5. 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 must be taken in repair of pumps with
mechanical seals. Read and follow all special information
supplied with pump.
MAINTENANCE
Series 125 and 4125 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: External lubrication must be applied
slowly with a hand gun to all lubrication fittings every 500
hours of operation with multi-purpose grease, NLGI #2. Do
not over-grease. Applications involving very high or low
temperatures will require other types of lubrication.
Refer
to Engineering Service Bulletin ESB-515. Consult
factory with 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, page 4, and Assembly, page 5, regarding
repacking pump.
CLEANING PUMP: Keep pump as clean as possible. This
will facilitate inspection, adjustment and repair work and
help prevent overlooking a dirt covered grease fitting.
STORAGE: If pump is to be stored, or not used for six
months or more, pump must be drained and a light coat of
non-detergent SAE 30 weight oil must be applied to all
internal pump parts. Lubricate fittings and apply grease to
pump shaft extension. Viking suggests rotating pump shaft
by hand one complete revolution every 30 days to circulate
the oil.
SUGGESTED REPAIR TOOLS: The following tools must
be available to properly repair Series 125 and 4125 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 (some mechanical seals and set
collars)
3. Packing hooks, flexible (packed pumps)
Large for 0.38 inch and up cross section packing
4. Mechanical seal installation sleeve
Viking Part No. 2-751-005-630 for 2.44 inch
Q, QS & M4125
5. Bearing locknut spanner wrench
(Source: #472 J. H. Williams & Co. or equal)
6. Spanner wrench, adjustable pin type for use on
double end caps
(Source: #482 J. H. Williams & Co. or equal)
7. Brass bar
8. Arbor press
DANGER
BEFORE OPENING ANY VIKING PUMP LIQUID
CHAMBER (PUMPING CHAMBER, RESERVOIR,
RELIEF VALVE ADJUSTING CAP FITTING ETC.)
BE SURE:
1. THAT ANY PRESSURE IN CHAMBER HAS
BEEN COMPLETELY VENTED THROUGH
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.
SECTION TSM 141.2 ISSUE C PAGE 2 OF 13