Disassembly of coupling, Series md2-b and md2-c, all sizes, Caution – Viking Pump TSM685.2: AS-KKE 855 User Manual

Page 8

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SECTION TSM

685.2

ISSUE

F

PAGE 8 OF 16

Buttonhead

Screws

Locknut

Inner Magnet

Set Collar

Canister

Bushing

Canister

O-ring

Button Head

Screws

Canister and Casing

Drain Holes

DISASSEMBLY OF COUPLING

FIGURE 9

PUMP, INNER MAGNET AND CANISTER ASSEMBLY

Series MD2-B and MD2-C, All Sizes

1. Remove the piping to the ports and remove the

capscrews securing the pump to the bracket. Support

the pump with an overhead hoist if possible. Use the

M10 x 120 capscrew (jackscrew) in the bracket to

separate the inner magnet from the outer.

(See Figure

Sequence 10).

CAUTION !

Use extreme caution, when pulling the in-

ner magnet away from the outer magnet (see

Figure 10). Do not place your fingers between

the pump mounting flange and the face of the

bracket. If you do not completely pull the pump

out it will snap back and could pinch a finger or

hand. Once the inner magnet is removed from

the bracket be careful setting it down as it will
attract any iron or steel object.

2. The canister will contain some liquid, therefore use care

while removing from the pump and pull it straight off.

FIGURE 12

MOTOR (OR BEARING CARRIER) AND BRACKET

FIGURE 11

INNER MAGNET AND LOCKNUT ASSEMBLY

Motor or

Bearing

Carrier

Bracket

Capscrews

3. Remove the two 6mm buttonhead machine screws and

the set collar. Insert a brass bar through a port between

two rotor teeth and remove the locknut

(See Figure 11).

Slide the inner magnet off the shaft. Do not forget this

is a very strong magnet. If further pump disassembly is

required, refer to Step 7 of

PUMP DISASSEMBLY.

FIGURE 10

PUMP AND BRACKET SEPARATION SEQUENCE

M10x120 CAPSCREW

DO NOT PLACE

FINGERS HERE

M10X120 CAPSCREW

DO NOT PLACE

FINGERS HER

E

(4) 12mm Screw

4. Do not remove the O-ring unless it is bad, especially

if PTFE (derivative) encapsulated. If a new O-ring is

required, follow instructions in the

ASSEMBLY section

on

page 10.

5. You should be able to visually inspect the outer magnets

from the end of the bracket. If removal is necessary,

start by removing the (4) capscrews

(See Figure 12)

and separate the bracket from the motor or bearing

carrier. Loosen the 2 setscrews on the outer shell hub

and slide the outer magnet assembly off the shaft. If

the unit features a bearing carrier,

refer to Page 9 for

disassembly of the bearing carrier housing.

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