Viking pump 4197 Series Technical & Service Manual Download Page 5

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FIGURE 6: THRUST BEARING ASSEMBLY GG, HJ, HL SIZES

FIGURE 7: THRUST BEARING ASSEMBLY AS, AK, AL SIZES

PUMP DISASSEMBLY

See

“Figure 4” on page 4

and

“Figure 5” on page

for model to be disassembled and name of parts.

Mark the head and casing before disassembly to ensure

proper reassembly.

3. GG NOTE:

The four valve capscrews, valve and gasket

must be removed before the six head capscrews are

removed.
Remove the head capscrews.

Tilt the top of the head back when removing to prevent the

idler from falling off the idler pin. Avoid damaging the head

gasket.
Remove the head from the pump.

Remove the idler and bushing assembly. If the idler

bushing needs replacing, refer to

“Installation: Carbon

Graphite Bushings” on page 9

Outer Ball Bearing

Bearing Housing

Inner Ball Bearing

Bearing Spacer

Setscrew

Endcap

Shaft

Locknut

Outer Ball Bearing

Bearing Housing

Inner Snap Ring

Outer Snap Ring

Shaft Snap Ring

Inner Ball Bearing

Bearing Retainer Washer

Setscrew

Shaft

Locknut

⚠

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.

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.

TSM 1741 | Issue B | Page 5 of 20

Summary of Contents for 4197 Series

Page 1: ... Maintenance 19 ESB 515 19 Lubrication of Viking Pumps 19 Lubrication of Viking Reducers 19 Lubrication of Viking Associative Equipment 19 FIGURE 2 AS AK AL SIZES FIGURE 1 GG HJ HL SIZES INTRODUCTION The illustrations used in this manual are for identification purposes only and cannot be used for ordering parts Obtain a parts list from your Viking Pump representative Always give a complete name of...

Page 2: ...ump rotation may be reversed during operation pressure protection must be provided on both sides of pump Relief valve adjusting screw caps must always point towards suction side of the pump If pump rotation is reversed position of the relief valve must be changed Pressure relief valves cannot be used to control pump flow or regulate discharge pressure For additional information refer to Appendix G...

Page 3: ...Bulletin ESB 31 MAINTENANCE These pumps are designed for long trouble free service life under a wide variety of application conditions with minimum maintenance The points listed below will help provide long service life 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 i...

Page 4: ...m Name Of Part Item Name Of Part 1 Locknut 9 Bearing Retainer Washer 17 Idler Bushing 2 Bearing Spacer Collar 10 Casing 18 Idler and Bushing Assembly 3 End Cap for Bearing Housing 11 O Rings for Relief Valve 19 Head O Ring 4 Lip Seal for Bearing Housing 12 Relief Valve 20 Idler Pin 5 Ball Bearing Outer 13 Pipe Plug 21 Head and Idler Pin Assembly 6 Bearing Housing 14 Capscrew for Valve 22 Capscrew ...

Page 5: ...tscrew Setscrew Endcap Shaft Locknut Outer Ball Bearing Bearing Housing Inner Snap Ring Outer Snap Ring Shaft Snap Ring Inner Ball Bearing Bearing Retainer Washer Setscrew Shaft Locknut 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 dis...

Page 6: ... them slowly by hand Spinning the bearings will damage the race and balls Make sure the bearings are clean then lubricate with non detergent SAE 30 weight oil and check for roughness Roughness can be determined by turning the outer race by hand Replace the bearings if they have roughness Be sure the shaft is free from nicks burrs and foreign particles that might damage the mechanical seal Scratche...

Page 7: ...ce can be pressed upon rotor hub See Figure 10 on page 7 or Figure 13 on page 8 To disassemble the rotating portion of the seal compress the carbon face and rapidly depress the retaining ring through the notch at the end of the retainer cartridge as shown in Figure 14 on page 8 Press the retainer cartridge onto the rotor hub See Figure 11 on page 7 At the factory an installation tube is used to pr...

Page 8: ...ler pin which is offset in the pump head is positioned toward and equal distance between the port connections to allow for proper flow of liquid through the pump 4 Tighten the head capscrews evenly 5 If the pump was equipped with a relief valve and was removed during disassembly install on the head with new gaskets The relief valve adjusting screw cap must always point towards the suction port Ref...

Page 9: ...aring assembly Turn the thrust bearing assembly clockwise until it can no longer be turned by hand Back off counter clockwise until the rotor shaft can be turned by hand with a noticeable drag 2 Make a mark on the outside diameter of the bearing housing and a corresponding mark on the casing 3 For standard end clearance back off the thrust bearing assembly the required length measured on the outsi...

Page 10: ... discharge line for actual adjusting operation 3 Turn adjusting screw CW in to increase pressure and CCW out to decrease pressure For guidance dimensions contact your Viking Pump representative for Engineering Standard ES 37 4 Close the discharge line at a point beyond the pressure gauge Limit the amount of time the pump is being operated at this condition The temperature inside the pump will rise...

Page 11: ...tions including right hand and left hand 4 Suction Discharge shaft rotation will determine which port is suction and which is discharge A look at Figure A3 will show how rotation determines which port is which As the pumping elements gears come out of mesh point A on Figure A3 liquid is drawn into the suction port Then at point B the gears come into mesh and the liquid is forced out the discharge ...

Page 12: ... reached at which all of the liquid being pumped is going through the valve This pressure is the relief valve setting Viking pumps can be furnished with either an internal pressure relief valve one which directs the flow from the valve back to the suction side of the pump or a return to tank valve which directs the flow through piping back to the supply tank See Figure A5 A and Figure A5 B An inli...

Page 13: ...sult in personal injury and or damage to the unit FIGURE A9 EXAMPLE OF IMPROPER LIFTING METHOD NOTE NEVER lift the unit with slings connected to the component lifting features The lifting features are designed for the individual component and are not rated to lift the entire unit Improper lifts can result in personal injury and or damage to the unit FIGURE A10 A Check width between these surfaces ...

Page 14: ...on or discharge line go around the obstacle instead of over it Going over it creates an air pocket See Figure A13 5 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 6 For a suction line with a long horizontal run keep the horizontal portion below the liquid level if possible This keeps the pipe full of li...

Page 15: ...s manual 3 Check piping to be sure there is no strain on the pump casing 4 Rotate the pump shaft by hand to be sure it turns freely MAKE SURE THE PUMP DRIVER IS LOCKED OUT OR CANNOT BE ENERGIZED BEFORE DOING THIS 5 Jog motor to be sure it is turning in the right direction refer to discussion on pump rotation under item 4 in General Installation Notes section 6 Check any relief valves to be sure th...

Page 16: ...ossibly an air leak insufficient liquid above the end of the suction pipe c Vibrating from cavitation misalignment or damaged parts PRESSURE GAUGE DISCHARGE PORT 1 High reading would indicate a High viscosity small diameter discharge line or long discharge line b Gate valve is partially closed c Filter is plugged d Vertical head did not consider a high specific gravity liquid e Line is partially p...

Page 17: ...tern on all parts Rapid wear occurring in a few minutes hours or days shows up as heavy grooving galling twisting breaking or similar severe signs of trouble See Rapid Wear Table RAPID WEAR RAPID WEAR TABLE CAUSE EVIDENCE POSSIBLE SOLUTION 1 ABRASIVES Gouges or marks made by large hard particles a rapid wearing away of bushings from very small abrasives or anything in between Flush the system with...

Page 18: ...d 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 Retighten all gasketed joints before using the pump DO S DON TS Do s and Don ts for installation operation and maintenance of Viking pumps t...

Page 19: ...ose polyurea grease Grease used for bracket bushing when seal is behind rotor Petrolatum Chevron Petrolatum Snow White Grease used for O Pro Seal Edible Grease aluminum complex Chevron FM ALC EP 0 1 2 Lubricate each grease fitting every 500 hours of operation or every six months whichever occurs first If service is severe grease more often Be sure the grease is compatible with the grease used by V...

Page 20: ...S EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ALL WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGMENT ALL OF WHICH OTHER WARRANTIES ARE EXPRESSLY EXCLUDED THE RIGHTS AND REMEDIES UNDER THIS WARRANTY ARE AND SHALL BE THE SOLE AND EXCLUSIVE RIGHTS AND REMEDIES AGAINST VIKING EXCEPT FOR THE SPECIFIC LIABILITIES AND OBLIGATIONS PROVIDED UNDER THIS WARRANTY VIKING SHA...

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