Table of Contents
Advertisement
Quick Links
High-Pressure Bulk Grease Pump
Description
The major components of pump model 7730 consist of an air-
operated motor and a pump tube. The air motor connects directly
to the double-acting reciprocating pump tube.
This high-pressure (75:1 ratio) grease pump is designed to
deliver a range of greases [up to NLGI # 3] directly from bulk
containers.
Mounting
In most cases these pumps connect horizontally to a bulk
container. See Figure 6. The pump includes the male portion of a
3-inch camlock connection for ease in installation.
Distribution System
The use of the proper equipment that comprise the entire
product distribution system is essential.
All components must have a pressure rating that allows safe
operation at the maximum anticipated pump pressure.
Specifications
Air Motor
Piston Diameter x Stroke
Inches
Centimeters
4-1/4 x 4
10.8 x 10.2
For information on the air motor, refer to Service Guide SER 323440-4
Pump Tube
Max. Material
Pressure
Material
Outlet
psi
Bars
1/2 " NPTF (f)
7500
517
* For detailed information, refer to Figure 3
Table 1 7730 Model Series Specifications
This document contains confidential information that is the property of Alemite Corporation
670700
and is not to be copied, used, or disclosed to others without express written permission.
Service Guide
Max. Air Pressure
Air Inlet / Outlet
psi
3/4 " NPTF (f)
100
Max. Delivery/Minute
Displacement
(Approximate)*
per Cycle
3
Pounds
Kilograms
in
12.5
5.7
1.36
Alemite Corporation
PO Box 473515, Charlotte, North Carolina 28247-3515
www.alemite.com
©
Copyright
2001 by Alemite Corporation
Bars
6.9
3
cm
22.3
Figure 1 High-Pressure Bulk Grease Pump
7730
Model 7730
SER 7730
Revision (8-01)
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Alemite 7730
Summary of Contents for Alemite 7730
- Page 1 7730 High-Pressure Bulk Grease Pump Description The major components of pump model 7730 consist of an air- operated motor and a pump tube. The air motor connects directly to the double-acting reciprocating pump tube. This high-pressure (75:1 ratio) grease pump is designed to deliver a range of greases [up to NLGI # 3] directly from bulk containers.
- Page 2 SER 7730 High-Pressure Bulk Grease Pump Figure 2-A High-Pressure Bulk Grease Pump Model 7730- Exploded View Revision (8-01) Alemite Corporation...
- Page 3 High-Pressure Bulk Grease Pump SER 7730 Item Numeric Order Part No. Description Notes Part # (Item #) 10522 Plug, Square Head Pipe, 1/4 " NPTF (m) 10522 327706 Adapter, 1/2 " NPTF (m) 11828 See SER 323440-4 Motor Assembly, Air...
- Page 4 SER 7730 High-Pressure Bulk Grease Pump Figure 2-B High-Pressure Bulk Grease Pump Model 7730 Series - Exploded View Revision (8-01) Alemite Corporation...
- Page 5 High-Pressure Bulk Grease Pump SER 7730 Item Numeric Order Part No. Description Notes Part # (Item #) 171000-107 O-Ring, 4 " ID x 4-3/8 " OD 18850 (50) 338838 Adapter, Camlock 46584 (40) 323439 Coupling 131398-1 (48) 324648 Clip, Spring...
-
Page 6: Preventive Maintenance
Wipe Exterior with Clean Cloth Inspect for Air and/or Material Leakage Table 3 7730 Model Series Preventive Maintenance Schedule Performance Curves A pump’s ability to deliver material is based on the pressure (psi/Bars) and quantity (cfm/lpm) of air supplied to the motor and the amount of material discharge [back] pressure to be overcome within the system. - Page 7 High-Pressure Bulk Grease Pump SER 7730 Alemite Corporation Revision (8-01)
- Page 8 SER 7730 High-Pressure Bulk Grease Pump Overhaul CAUTION Support the Pump Tube assembly during removal. NOTE: Refer to Figure 2-A and 2-B for Damage to components can occur. component identification on all overhaul procedures. 5. Unscrew Pump Tube (28) [with attached components] Prior to performing any maintenance procedure, the from the Air Motor.
-
Page 9: Clean And Inspect
High-Pressure Bulk Grease Pump SER 7730 23. Remove brass Bearing (34), Back-Up Ring (33), and Clean and Inspect Seal (32) from the Barrel Assembly. NOTE: Use the appropriate repair kit for NOTE: Inspect the inside diameter of nylon replacement parts. Make sure all the compo- Wear Ring (31). - Page 10 SER 7730 High-Pressure Bulk Grease Pump 22. Install and seat Seal (46) [heel end first] into Valve CAUTION Body (47). Do not place Washer (19) inside Spacer (20). Dam- 23. Lubricate Primer Rod (43) with grease. age to components will occur.
- Page 11 High-Pressure Bulk Grease Pump SER 7730 28. Install Valve Seat (48), Plate (49), and Stop Nut (50) onto the Primer Rod. • Tighten the Stop Nut securely. • Place a small punch into the hole of the Primer Rod to prevent its rotation.
-
Page 12: Bench Test
SER 7730 High-Pressure Bulk Grease Pump IMPORTANT: If a primer is used with Loc- 4. Slowly supply air pressure [not to exceed 20 psi tite 222, the curing time is greatly reduced. (1.4 Bars] to the pump’s motor. • The pump assembly should cycle. -
Page 13: Installation
* Although the air motor is lubricated at the factory, Chart for details. the life of the motor can be extended with the use of a lubricator. Figure 6 Medium-Pressure Grease Pump Model 7730 (Shown with Accessories) - Typical Installation Alemite Corporation Revision (8-01) -
Page 14: Troubleshooting Chart
SER 7730 High-Pressure Bulk Grease Pump Troubleshooting Chart Pump Indications Possible Problems Solution Pump does not cycle 1. Insufficient air pressure 1. Increase air pressure 2. Air motor not operating properly 2. Inspect air motor and rebuild or replace as necessary 3.
Need help?
Do you have a question about the 7730 and is the answer not in the manual?
Questions and answers