Viking-pump TSM630.1: H-LL Universal Seal User Manual download pdf (Page 3)

SECTION TSM 630.1 ISSUE F PAGE 3 OF 14

MAINTENANCE

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.

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.

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.

Series 124E, 124EH, 224A, 4224A, 224AE, 4224AE, 224AH,

4224AH, 4224B, 226A, 4226A, 223A, 4223A, 227A, and

4227A 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. Refer to

Engineering Service Bulletin ESB-515. Consult factory with

specific lubrication questions. Applications involving very high

or low temperatures will require other types of lubrication.

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”,

page 7, 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

light 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. Tighten all pump

assembly bolts before putting pump in service after being

stored.

SUGGESTED REPAIR TOOLS: The following tools must

be available to properly repair series 124E, 124EH, 224A,

4224A, 224AE, 4224AE, 224AH, 4224AH, 4224B, 226A,

4226A, 223A, 4223A, 227A, and 4227A pumps. 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. Packing hooks, flexible (packed pumps)

4. Mechanical seal installation sleeve

2-751-002-900 for 1.125 inch seal; H-HL pumps.

2-751-003-900 for 1.4375 inch seal; K-LL pumps.

5. Bearing locknut spanner wrench

(Source: #471 J. H. Williams & Co. or equal)

6. Spanner wrench, adjustable pin type for use on bearing

housing (Source: #482 J. H. Williams & Co. or equal)

7. Brass bar

8. Arbor press

Jacketing of the bracket and head provide large chambers at

both ends of the pumping chamber and around the stuffing

box for temperature control of the product in the pump.

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.

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Viking-pump TSM630.1: H-LL Universal Seal User Manual Page 3

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