Tuthill 6000, Installation And Service Instructions Manual, Page: 10 / 36

Service Manual # 67
Page 10 of 36
1. Remove piping from the ports.
2. Mark cover and housing before disassembly to ensure proper reassembly.
3. Remove the cover screws, cover and idler.
4. Inspect the following parts carefully for deep grooves, scratches or other damage:
•
The end face of the rotor
•
The O.D. of the idler
•
The I.D. of the idler.
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Both faces of the idler.
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The O.D. of the idler pin.
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The inside surfaces of the cover including the crescent.
5. Check for signs of wear. A decrease in capacity is generally caused by the abrasive action of
foreign materials in the liquid, resulting in excessive end clearances. End clearance can be
reduced by changing to a thinner cover gasket. To adjust the end clearance, see assembly
procedure.
! CAUTION
The pump must be separated from the magnet coupling if further disassembly is required. Follow
the instructions below.
The housing, rotor and inner magnet can be removed by hand.
DO NOT PLACE HAND OR FINGERS BETWEEN THE HOUSING AND ADAPTER. The magnets
are extremely strong and will attract all metallic objects and can be the source of pinch points. Do
not wear watches or other metallic jewelry when working with magnets. See warning on Page 2.
Failure to follow proper procedures or use appropriate tools could result in injury to you or damage
to either personal property or the pump.
6. Remove the housing screws.
7. Remove the pump head assembly from the adapter, making sure to pull it straight off.
8. Remove the canister from the housing. The canister will probably contain pumping residue.
Use care when removing, making sure to pull the canister straight off. Inspect the canister I.D.
and O.D. for evidence of contact or wear.
9. Set the housing, rotor and inner magnet assembly face-down. Remove the retaining ring, inner
magnet and key.
10. Set the magnet down on a clean, non-magnetic surface. Inspect the magnet sleeve for
evidence of damage or excessive wear and cover with a cloth to prevent contamination.
11. Check the shaft O.D. for any burrs and remove to prevent damage to the housing bushing.