Alemite 7835-SDTR1 Service Manual - Page 8

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SER 7835-SDTR1

Clean and Inspect

1. Clean all metal parts in cleaning solvent. The solvent

should be environmentally safe.

2. Inspect all parts for wear and/or damage.

• Replace as necessary.

3. Inspect Packing Rings (11) and Cups (25) for wear.

• Replace as necessary.

4. Inspect Packing Rod (15) and lower bore of Cylinder

(31) for 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 (34) into Foot Valve

Body (35). Fill the Foot Valve Body with

solvent. Make sure no leakage occurs.

Assembly

NOTE: Prior to assembly, certain compo-

nents require lubrication in clean mineral

oil. Refer to Table 3 for details.

Pump Tube Assembly

Outlet Body

1. Clamp Outlet Body (13) [cage end upward] into a soft-

jaw vise.

1. Screw Pipe Plug (14) [with thread sealant] into the

Outlet Body.

• Tighten the Plug securely.

2. Install and seat Male Adapter Ring (12) [flat side

first], Packing Rings (11) [lip side first], and Female

Adapter Ring (10) [flat side upward] into the top of the

Outlet Body.

3. Screw Packing Nut (9) into the Outlet Body loosely.

IMPORTANT: The Packing Nut will require

adjustment. Refer to the section entitled

Bench Test and Operation for details.

Item No.

Packing Rod

bore of Cylinder

Table 3 Components Lubricated in Clean Mineral Oil

Revision 8-00

1-800-548-1191-http://[email protected]

Description

Medium-Pressure Stainless Pump

4. Install Packing Rod (15) [threaded end first] into the

top of the Outlet Body.

• Allow the threaded end to extend from the bottom of

the Outlet Body.

5. Screw Coupling (16) onto the Packing Rod until the

cotter pin holes align.

6. Install Cotter Pin (17).

Adapter

7. Position Adapter (23) small diameter upward.

8. Install and seat Washer (24) [lip upward], Cup (25) [lip

first], Spacer (26) [large diameter first], additional Cup

(25) [lip first], and Washer (27) onto the Adapter.

9. Screw Valve Body (28) onto the Adapter.

• Tighten the Valve Body until it bottoms.

Rod

10. Screw Nut (19) to the top of Rod (18).

11. Screw Stop (20) onto the Rod until it bottoms.

12. Tighten Nut (19) to the Stop.

13. Install Spacers (21) and (22) onto the Rod.

14. Install the Adapter assembly [Adapter end fist] onto

the Rod.

15. Screw Valve Seat (29) onto the Rod until it bottoms.

16. Measure the distance from the bottom of Stop (20) to

the top of Spacer (21).

• The distance must not be less than 0.20 " (5.1 mm)

and no greater than 0.28 " (7.1 mm). See Figure 4.

NOTE: This setting effects the efficiency of

the pump.

Cylinder

17. Install Cylinder (31) [bottom end first] onto the top of

the Rod and Adapter assembly.

• Allow the Rod to extend from the top of the Cylinder.

18. Position the Outlet Body horizontally in the vise.

19. Install and seat Gasket (30) into the bottom of the

Outlet Body.

20. Screw the Rod of the Cylinder assembly into the

Coupling until the cotter pins holes align.

21. Install Cotter Pin (17).

Alemite Corporation