background image

    Service Guide

7889-6
7889-B
7889-C

Alemite Corporation

PO Box 473515, Charlotte, North Carolina 28247-3515

www.alemite.com

Copyright 

© 

2003 by Alemite Corporation

This document contains confidential information that is the property of Alemite Corporation

670750

and is not to be copied, used, or disclosed to others without express written permission.

Revision (3-03)

SER 7889-6

Figure 1

High-Pressure Pump Model 7889 Series

Description

The major components of the pump models in the 

7889 series consist of a reciprocating air motor and a 
double-acting pump tube. The pump tube is divorced 
from the motor which:

• protects the motor from product contamination
• allows separation without product leakage

The pump tube features a dynamic primer (see 

Figure 

3A

) that enables the delivery of a variety of materials, 

including lubricants. These high-pressure (40:1) pumps 
contain a bung adapter [2 " NPTF (m)] that allows 
operation directly from original drums or bulk 
containers.* 

Models 7889-6, 7889-B and 7889-C

NOTE

: Models 7889-6 and 7889-C can be

hoist-mounted. Refer to the 

Page 2

 for details.

Pump models 7889-6 and 7889-C are designed with a 

pump tube length to accommodate different size 
containers. See 

Figure 1

* Model 7889-B is designed for remote installation.

Specifications

Air Motor

Pump Tube

Piston Diameter / Stroke

Air Inlet/Outlet

Max. Air Pressure

Inches

Centimeters

psi

Bars

4-1/4 / 4

10.8 / 10.2

3/4 " NPTF (f)

200

14

For air motor data, refer to Service Guide

 

SER

 323440-4

Material 

Outlet

Max. Material 

Pressure

Delivery/Minute

(Approximate)*

Displacement/

Cycle

psi

Bars

lb

kg

gal

l

ci

cc

1/2 " NPTF

8000

552 

27

12.3

3.5

13.2

2.45

40.15

* For detailed information, refer to 

Figure 2

Table 1

7889 Model Series Specifications

High-Pressure Material Pump

Pump 

Model

Container Size

X

Y

lb

kg

Inches

Cm

Inches

Cm

7889-6

400

180

64-3/8

164

35-1/8

89

7889-B

Threaded Primer Body 
for Remote Installation 54-3/8

138

25-1/8

64

7889-C

120

-

Summary of Contents for 7889-6

Page 1: ...s contain a bung adapter 2 NPTF m that allows operation directly from original drums or bulk containers Models 7889 6 7889 B and 7889 C NOTE Models 7889 6 and 7889 C can be hoist mounted Refer to the...

Page 2: ...re in psi Bars left Y axis Model Number Air Hose Material Hose Follower Cover Union Muffler Pound Kilogram 7889 6 317811 5 317882 7 338912 318040 4 338984 321155 324170 322590 4 7889 B 7889 C 338804 3...

Page 3: ...nnector 3 4 NPTF m 1 172207 4 7 4 328031 Coupler Air 1 2 NPTF f 1 323440 A1 2 5 Screw 1 2 20 x 2 4 323842 1 6a Tube Assembly Pump 1 7889 6 See Figure 3 B 328031 4 7889 C 328037 3 6b Tube Assembly Pump...

Page 4: ...SER 7889 6 High Pressure Material Pump Revision 3 03 4 Alemite Corporation Figure 3 B High Pressure Lubricant and Material Pump Model 7889 Series Exploded View...

Page 5: ...323717 32 22 326750 B1 Adapter Bung 2 NPTF m 1 323732 36 23 323693 Gasket 1 92 OD Aluminum 1 323734 46 24 333257 2 Tube Pump 25 65 Long 1 Model 7889 6 323738 44 333257 5 Tube Pump 15 65 Long 1 Model...

Page 6: ...SER 7889 6 High Pressure Material Pump Revision 3 03 6 Alemite Corporation...

Page 7: ...uch as methylene chloride or 1 1 1 trichlor ethane in this pump An explosion can result within an enclosed device capable of containing pressure when aluminum and or zinc plated parts come in contact...

Page 8: ...to use Seal 28 Bearing 29 and Spacer 30 Order Barrel Assembly 26 separately 26 Remove the Barrel Assembly from the Pump Tube 27 Remove both aluminum Gaskets 25 28 Remove brass Bearing 29 Seal 28 and...

Page 9: ...Tighten the Adapter and Insert Assembly securely 14 Remove the Piston assembly from the vise 15 Install Washer 42 into Valve Body 44 16 Install and seat Seal 43 heel end first into the Valve Body Use...

Page 10: ...7889 6 High Pressure Material Pump Revision 3 03 10 Alemite Corporation Figure 5 Pump Tube Assemblies 333183 A1 333183 B1 and 333183 C1 Section View Refer to Figure 3 B Parts List for Parts identifica...

Page 11: ...ng Clip holes align 38 Install Spring Clip 18 39 Screw the Rod and Coupling assembly onto the Piston until the Spring Clip holes align 40 Install the Spring Clip IMPORTANT If a primer is used with Loc...

Page 12: ...ppear to puncture the skin get medical care immediately Ensure all components are in operable condition Replace any suspect parts prior to operation Should leakage occur anywhere within the system dis...

Page 13: ...mp does not stall refer to the Troubleshooting Chart for details 16 Check the motor for air leakage If the motor leaks refer to the Air Motor Service Guide for details IMPORTANT Make sure to reset the...

Page 14: ...Rod 19 1 Replace Seal 14 2 Replace Upper Piston Rod 19 Product leakage visible at bottom of Body 16 1 Pump tube not sufficiently tight 2 Damaged Gasket 23 1 Tighten pump tube assembly 2 Replace Gasket...

Reviews: