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SECTION TSM 845 ISSUE F PAGE 4 OF 14
CLEANING PUMP: Keep pump as clean as possible. This
will facilitate inspection, adjustment and repair work.
STORAGE: If pump and coupling are to be stored, drain 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 pump shaft by
hand one complete revolution every 30 days to circulate the
oil. 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 823, 825, and 827 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. Allen wrenches
3. External Snap ring pliers - 2-810-029-375
4. Internal Snap ring pliers - 2-810-047-999
5. Feeler gauge set
6. Arbor Press
7. Brass Bar
8. Hand Knobs - 2-790-046-999 (2 Required)
9. Standard 5/16” 12 point socket
1. Refer to Figures 4, 5 & 6 for names of parts.
2. Mark head, casing, and bracket before disassembly to
insure proper reassembly. The idler pin, which is offset in
the pump head, must be positioned toward and an equal
distance from port connections to allow for proper flow of
liquid through the pump.
3. Remove the head capscrews.
DISASSEMBLY: PUMP
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
appropriate openings or connections.
(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 otherwise made 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.
FIGURE 4
CUTAWAY VIEW MAG-DRIVE PUMP, MODEL KK-825 MD-80 B ILLUSTRATED
OUTER MAGNET
ASSEMBLY
CANISTER
CANISTER
O-RINGS
BRACKET
BUSHINGS
BALANCE
PLATE
ROTOR
CASING
IDLER PIN
PRESSURE
RELIEF
VALVE
HEAD
HEAD
GASKET
IDLER
BRACKET
INNER MAGNET
ASSEMBLY
BRACKET
BEARING
CARRIER
ASSEMBLY