Alemite 7786-C Service Manual

Description
The major components of the pump models in the 7786 series
consist of an air-operated motor and a pump tube. The air motor
connects directly to the double-acting reciprocating pump tube.
These high-pressure non-divorced grease pumps (75:1 ratio)
are designed to deliver a range of greases (up to NLGI # 3) and
operate directly from their original drums or bulk containers*.
Models 7786 Series Comparison
Each pump model is designed with a pump tube length to
accommodate different size containers. See Figure 1.
Model 7786-MA is equipped with an air inlet and a material
outlet adapter with BSPP threads. See Table 1.
* Pump model 7786-A5 is operated in various type systems,
Refer to the section entitled Alternate Installation (Page 12) for
details.
Specifications
Air Motor
Pump
Model
Body
7786-A5, -C
3/4" NPTF
7786-MA 3/4" BSPP (f) x 3/4" NPTF (m)
For additional specifications, refer to Service Guide SER 323440-4
Pump Tube
Pump Model
7786-A5 and 7786-C
7786-MA
** For detailed information, refer to Figure 3
396910
and is not to be copied, used, or disclosed to others without express written permission.
Service Guide
High-Pressure Grease Pump
Air Inlet
Adapter
Not Applicable
Material Outlet Adapter
1/2 " NPTF (f) x 1/2 " NPTF (m)
1/2 " BSPP (f) x 1/2 " NPTF (m)
Table 1 High-Pressure Pump Model 7786 Series Specifications
167 Roweland Drive, Johnson City, Tennessee 37601
www.alemite.com
Copyright
This document contains confidential information that is the property of Alemite, LLC
Pump
Model
Max.
Air Pressure
7786-A5
psi bar
7786-MA *
7786-C
100 6.9
* With BSPP Inlet and Outlet Adapters (See Table 1)
Figure 1 High-Pressure Pump Model 7786 Series
Max.
Material Pressure
psi bar
7500 517
Alemite, LLC
©
2006 by Alemite, LLC
7786-A5
7786-C
7786-MA
Container Size X
lbs kg Inches Cm
400 -
33-1/8 84
- 180
120 - 25-5/8 65
Model 7786-A5 Shown
Delivery/Min. Displacement
(Approximate) ** per Cycle
3
lbs. kg
in
12.5 5.7 1.36
SER 7786-A5
Revision (1-13)
Y
Inches Cm
52-1/4 133
44-3/4
114
3
cm
22.3