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SECTION TSM 845 ISSUE F PAGE 5 OF 14
4. Remove head from pump. Do not allow idler to fall from
idler pin. Tilt top of head back when removing to prevent
this. Avoid damaging head gasket set, all gaskets are
required to maintain end clearance.
5. Remove idler and bushing assembly. If idler bushing
needs replacing, see “Installation of Bushings”
page 9. If further disassembly is required pump must
be separated from coupling. Refer to “Disassembly:
Coupling,” on page 6, before proceeding with Step 6.
6. After inner magnet is removed then remove key and
external retaining ring from the shaft. Rotor and shaft
may now be extracted by tapping on end of the shaft
with a soft face hammer (if a soft faced hammer is
unavailable a regular hammer may be used with a piece
of hardwood).
7. Mark the location and orientation of the Balance plate
before removing by pulling out. (The balance plate may
not be removable in the 825 series).
The casing should be examined for wear, particularly in the
area between ports. All parts should be checked for wear
before pump is assembled.
When making major repairs, such as replacing a rotor and
shaft, it is advisable to also install a new head and idler pin,
idler and bushing, and casing bushings. See “Installation of
Bushings” on page 9.
Clean all parts thoroughly and examine for wear or damage.
Check bushings, idler pin and balance plate; replace if
necessary.
ITEM NAME OF PART ITEM NAME OF PART ITEM NAME OF PART
1 Bracket Gasket - Primary 10 Casing 19 Head Gasket
2 Bracket Gasket 11 Capscrew for Inner Magnet 20 Idler Pin
3 Orifice 12 Lockwasher 21 Head & Pin
4 Bracket 13 Washer 22 Pipe Plug
5 Capscrews for Casing 14 External Retaining Ring 23 Capscrews for Head
6 Casing Gasket 15 Key 24 Gaskets for Relief Valve
7 Bracket Bushings 16 Rotor & Shaft 25 Relief Valve
8 Balance Plate (Maybe Not in 825) 17 Idler Bushing 26 Capscrews for Relief Valve
9 Pipe Plugs 18 Idler & Bushing
FIGURE 5
K & KK MAG DRIVE PUMP