Table of Contents
Advertisement
6.2.2.2 Insert bushing into hole in body or pump base assembly and seat with
6.3 Motor and Drive Housing Assembly with Pressure Switch
6.3.1 Repair of the motor and drive housing assembly with pressure switch is limited
to replacing either the magnet assembly or the entire assembly, including the
pressure switch. Replacement should be made for any motor winding that does
not pass the motor winding test (refer to Testing and Troubleshooting). Also
replace if rotor shaft is bent.
7. Assembly
7.1 Tools & materials
7.1.1 The following tools and materials are required to assemble the Model 668-400-2.
Note: Equivalent substitutes may be used.
7.1.1.1 One (1) each 3/32 inch (0.238 cm) hex key.
7.1.1.2 One (1) each flat blade screwdriver, 3/16 inch (0.476 cm).
7.1.1.3 Dow Corning high-vacuum grease.
7.2 Assembly of Pump Assembly (-1). (Refer to Figure 2 in IPL.)
CAUTION: DO ALL WORK ON CLEAN SURFACE.
7.2.1 Install screen (33) in body assembly (2). Lightly lubricate O-ring (34) with
specified grease and place into groove in cap (32). Thread cap into body
assembly.
7.2.2 Insert piston (22) in pressure regulator hole in body assembly (2). Lightly
lubricate O-ring (21) with specified grease and place on lip inside pressure
regulator hole. Install retainer (20), spring (19), and retainer (18).
7.2.3 Install spring (29), shim or shims (28), plate (27), ball (26), and sleeve (25) in
remaining hole in body assembly (2). Then add spring (24), adapter (23) with
O-ring (30) and (31) at each end of adapter.
7.2.4 Place adjuster assembly (15) with adjusting screw (16) and nut (17) over
assemblies installed in Steps 7.2.2 and 7.2.3. Attach to body assembly (2) with
two screws (14).
PO Box 8975, Vancouver, WA 98668-8975 • Phone: 360/253-2008 • Fax: 360/253-8294
2 Howard Road, Eaton Socon, St.
bushing insertion tool. Seat bushing to 0.15 inch (0.038 cm) below body
or pump base surface as applicable.
MICROPUMP, INC.
A Unit of IDEX Corporation
MICROPUMP
A Subsidiary of Micropump, Inc.
Neots, Cambridgeshire, PE 19 8ET England, • Phone: 011-44-1480-356600 • Fax: 011-44-
LIMITED
356300
Page 23 of 33
1480-
Advertisement
Table of Contents
