MICROPUMP, INC.
A Unit of IDEX Corporation
PO Box 8975, Vancouver, WA 98668-8975 • Phone: 360/253-2008 • Fax: 360/253-8294
MICROPUMP
LIMITED
A Subsidiary of Micropump, Inc.
2 Howard Road, Eaton Socon, St.
Neots, Cambridgeshire, PE 19 8ET England, • Phone: 011-44-1480-356600 • Fax: 011-44-
1480-
356300
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3.4.1 Rotate drive magnet (3) to align setscrew (2) with access hole in drive housing
(4).
3.4.2 Loosen setscrew (2) with 3/32 inch (2.381 mm) hex key. Pull drive magnet (3)
straight off rotor shaft.
4. Cleaning
4.1 Cleaning Agents and Materials
Note: Equivalent substitutes may be used for listed items.
4.1.1 Stoddard solvent.
4.1.2 Masking tape.
4.2 Cleaning Procedures
4.2.1 General
4.2.1.1 Clean all metal and plastic parts in Stoddard solvent. Blow dry with clean,
dry compressed air.
CAUTION: DO NOT USE SOLVENT ON ELECTRICAL PARTS OR
MOTOR BEARINGS.
4.2.2 Pump Housing
4.2.2.1 Remove any foreign matter or residue from pump housing and blow dry
with clean, dry compressed air.
CAUTION: DO NOT SCRATCH INTERIOR SURFACES OF ANY
HOLES IN BODY ASSEMBLY.
4.2.3 Magnet Assembly and Drive Magnet
4.2.3.1 Remove any particles from magnets by pressing sticky side of masking
tape against particles and removing tape.
5. Checks
5.1 Pump Assembly Condition
5.1.1 Visually check outside of cup for rub marks on back and side. Back marks
indicate drive magnet is maladjusted axially. Refer to Testing and
Troubleshooting. Side marks indicate that drive magnet is radially misaligned,
possibly due to a bent rotor shaft. Refer to Repair.
