Micropump GK Series Service Instructions - Manual (Page 2)

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.
Forge Close, Eaton Socon, St. Neots, Cambridgeshire, PE 19 3TP England, • Phone: (44) (0) 1480-219844 • Fax: (44) (0) 1480-476959
REVISION
LTR. DESCRIPTION DATE BY
C REVISED PER ECN-3951 10/31/96 D.M.S.
PART NUMBER: 5479
Page 2 of 3
3. The first two Bushings should be installed into the Pump Body (7) from the gear side. These Bushings
should be inserted to .020 inch (.51 mm) below seal surface. The remaining two Bushings should be
inserted into the Pump Body from the Driven Magnet (5) side.
4. Next install Seal (14) and Dowel Pin (12) each in the Cavity Plate (11) and Bearing Plate (13). Face Seal
(14) chamfer away from O-Ring groove.
5. Assemble Gear Driving (9) and Gear Driven (10) into Pump Body (7) as shown. Then carefully assemble
Cavity Plate (11) and Bearing Plate (13) to Body (7) and Gear Assembly. Take care not to punch Seals
(14) during assembly.
6. Secure the assembly with 2 Bolts (6). Torque Bolts (6) to 65 in.lbs. on Model 114. (See Fig. 3). Torque
Bolts (6) to 110 in.lbs. on Model 114-56C. (See Fig. 4). Bolts (6) must be retorqued after one-half hour
before proceeding with assembly.
7. Place Magnet (5) on gear shaft and set height as shown. (See Fig. 5). Magnet must be free of metal chips
and must rotate without sticking.
8. Locate Seal (4) into body with chamfer facing magnet (5), place Magnet Cup (3) into Body (7). Assemble
Drive Housing Sleeve (1) and outer Drive Housing (2) over magnet cup lining up screw holes in Housing (1)
(2) and Body (7).
9. Secure assembly by evenly tightening 6 Screws (16) as shown. Torque 8 Screws (17) to 40 in.lbs.