Viking K-823, KK825, KK827, K-825, KK823, K-827 service manual Special Information, Maintenance, Danger

SPECIAL INFORMATION

DANGER !

Before opening any Viking pump liquid chamber (pumping chamber, reservoir, etc.) Be sure:

1.That any pressure in the chamber has been completely vented through the suction or discharge lines or other appropriateopeningsorconnections. (See detailed procedure for venting the pumps, pages 4, 5 and 6).

2.That the driving means (motor, turbine, engine, etc.) has been “locked out” or made otherwise non- operational so that it cannot be inadvertently started while work is being done on the 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 Mag-Drive® pumps are designed to run in the direction indicated on the nameplate only. If rotation must be reversed, see “Pump Rotation” on page 10.

PRESSURE RELIEF VALVES:

1.Relief valves are mounted on the head of K and KK size pumps. Relief Valves are not available on jacketed heads.

2.If a Relief Valve is not furnished on the pump, some means of over protection such as an in-line relief valve should be provided. Do not rely on magnets decoupling for protection from over pressure. This may result in damage to magnets, pump or other equipment.

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 (See “Pump Rotation” on page 10 for additional steps required for proper operation). See Figure 3.

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.

DISCHARGE

SUCTION

RELIEF VALVE ADJUSTING SCREW CAP

Figure 3

MAINTENANCE

CAUTION !

Rare earth magnets used in these couplings have extremely strong magnetic fields capable of changing the performance or damaging items such as the following:

Pacemakers

Metal Implants Watches Computers & discs Credit Cards

Completely assembled magnetic couplings will not affect items listed above.

Altered performance or damage can occur only when the coupling halves are separated.

There are no known harmful effects of these magnetic fields on the human body.

Series 823, 825 and 827 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.

SECTION TSM 845 ISSUE F PAGE 3 OF 14