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GAUGE
PORT BOSS
STORAGE:
If the pump and coupling are to be stored, drain the pump
and pour non-detergent SAE 30-weight oil into the pump port.
Apply grease to the pump or the coupling shaft extension, if
present or accessible.
Viking suggests rotating the pump shaft every 30 days to
circulate the oil in the pump. The coupling should be stored
in a dry area.
Note: If the liquid to be pumped reacts with oil, use an
acceptable alternate.
SUGGESTED REPAIR TOOLS:
The following tools are required to properly repair Series 855
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 face hammer
2. Metric Allen wrenches (for set screws)
3. Torque Wrench with a locknut socket
4. External snap ring pliers - (Viking Part # 2-810-029-375)
5. Internal snap ring pliers - (Viking Part # 2- 810-047-999)
6. Arbor press
7. Brass bar
8. Hook style spanner wrench
SECTION TSM 685.2 ISSUE C PAGE 4 OF 16
MAINTENANCE
Series 855 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.
CLEANING PUMP:
Keep the pump as clean as possible. This will facilitate
inspection, adjustment and repair work.
ROTOR
HEAD
IDLER PIN
RELIEF VALVE
(shown with optional
RV coverplate)
HEAD
GASKET
SEAL
IDLER
CUTAWAY VIEW MAG DRIVE PUMP, MD2-B
WITH BEARING CARRIER ILLUSTRATED
INNER MAGNET
ASSEMBLY
OUTER
MAGNET
ASSEMBLY
BEARING
CARRIER
ASSEMBLY
(Optional)
CANISTER
TEMPERATURE
PROBE HOLE
CANISTER
O-RING
CASING
BUSHING
BRACKET
SHAFT
FIGURE 4
CASING
LUBRICATION:
Some bearing carriers require external lubrication. This must
be applied slowly with a handgun to 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
ESB-515. Consult factory with specific lubrication questions.