SER 7886-S5
Medium-Pressure Stainless Material Pump
Revision (8-00)
8
Alemite Corporation
Pump Tube
17. Clamp the Cylinder assembly horizontally in a vise at
the Bung Adapter.
18. Unscrew Foot Valve (40) from Cylinder (24).
• Place a large wrench in the slot of the Foot Valve.
19. Remove Gasket (22), Stop Washer (38), additional
Gasket (22), and Ball (39) from the Foot Valve.
20. Remove the Rod assembly from the bottom of the
Cylinder.
21. Remove upper and lower Spring Clips (10) that secure
Rod (27) and Stem (28) to lower Coupling (26).
22. Unscrew the Rod assembly and the Stem assembly
from the Coupling.
23. Clamp the flats of the Stem assembly in a vise.
24. Unscrew Valve (37) from the Stem.
25. Remove the Valve Seat and Packing assembly from the
Stem.
26. Remove Stop (29) from the Stem.
27. Unscrew Valve Seat (36) from Adapter (30).
28. Remove Packing (34) and Back-Up Ring (35) from the
Valve Seat.
29. Remove Spacer (33), Cup Packing (32), and
Washer (31) from the Adapter.
Optional Procedures
30. Remove upper and lower Spring Clips (10) that secure
Piston (11) and Rod (27) to upper Coupling (26).
31. Unscrew the Piston and the Rod from the Coupling.
Clean and Inspect
NOTE: Use the appropriate repair kit for
replacement parts. Make sure all the compo-
nents are included in the kit before discard-
ing used parts.
1. Clean all metal parts in a solvent compatible with the
product dispensed. The solvent should be
environmentally safe.
2. Make sure to remove the thread sealant from both male
and female threaded connections.
3. Inspect all parts for wear and/or damage.
• Replace as necessary.
4. Inspect Piston (11) and Cylinder (24) closely. Use a
magnifying glass to detect any score marks.
• Replace as necessary.
5. Closely inspect the mating surfaces of all check valve
components for any imperfections. Ensure a smooth
and clean contact is obtained when assembled.
EXAMPLE: Place Ball (39) into Foot Valve
(40). Fill the Foot Valve with solvent. Make
sure no leakage occurs.
Assembly
NOTE: Prior to assembly, certain compo-
nents require lubrication in clean mineral
oil. Refer to Table 4 for details.
Body Packing
NOTE: Refer to Figure 5 for a section view
of the Pump Tube Assembly.
1. Position Gland Screw (16) threads upward.
2. Install and seat the following components in order:
• Washer (17) ......................................................Qty 1
• Female Ring (18) [concave surface upward] ....Qty 1
• V-Packings (19) [concave surface upward] ..... Qty 5
• Male Ring (20) [flat surface upward]...............Qty 1
3. Clamp Body (23) small diameter upward.
4. Install and seat Gasket (22) and Washer (21) into the
Body.
5. Screw the Gland Screw assembly into the Body.
• Tighten securely to properly crush the Gasket.
6. Install and align Upper Mounting (15) onto the Body.
7. Install Lock Washers (14) and Screws (13) that secure
the Upper Mounting to the Body.
• Tighten the Screws securely in a crisscross pattern.
Item No.
Description
11
Piston
24
bore of Cylinder
Table 4
Components Lubricated in Clean Mineral Oil
