Alemite 8568 Series Service Manual

Description
The major components of an 8568 series pump consist of an
air-operated motor and a pump tube. The air motor connects
directly to the double-acting reciprocating pump tube.
These medium-pressure stub pumps (4:1 ratio) are designed
to deliver a range of light weight oils including gear lubricants.
The pump's bung adapter [2 " NPTF (m)] allows installation
directly onto original containers or bulk tanks.
Each model stub pump is also designed to accept a variety
of different length and types of extension tubes. These
extension tubes can also be equipped with a low level cut-off
valve. See Table 2.
The pump can also be installed remotely. In this case the
pump threads directly to the appropriate piping hardware.
Model 8568 Series Comparison
Stub pump model 8568-A4 is equipped with air motor
model 324300-5. Pump model 8568-MA is equipped with a
motor that contains BSPP inlet and BSPT outlet adapters.
See Table 1.
All remaining models (with the obsolete piston) were
manufactured with an air motor with standard connections. See
SER 324300-5 for details.

Specifications

Pump Tube
Max. Delivery/Minute
Material Pressure (Approximate)*
psi bar
gals
800 56 3.4
* For detailed information, refer to Figure 3
Air Motor
Piston Dia. x Stroke
Air Motor
Model
Inches
324300-3, -4, & -5
2-7/16 x 1-5/8 6.2 x 4.1 1/4" NPSI
324300-M
Table 1 Medium-Pressure Stub Pump Model 8568 Series Specifications
670648
and is not to be copied, used, or disclosed to others without express written permission.
Service Guide
Medium-Pressure Stub Pump
Material Inlet
liters
12.9 1-1/2 " NPTF (f)
Air Inlet
Cm Body
1/4" BSPP (f) x 1/4" NPSI (m)
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
8568-A4
8568-MA *
8568 Series
NOTE: Figure 5 illustrates the Current and Obsolete Pistons.
* With 324300-M Air Motor (See Table 1).
Figure 1 Air Motor Model 8568 Series
Adapter Body
Not Applicable
3/8 " NPTF
Alemite, LLC
©
2005 by Alemite, LLC
8568 -A4
8568-MA
8568 Series
Piston
w/ O-Ring Seal w/o O-Ring Seal
(Current)
Model 8568-MA Shown
Material Outlet
Adapter
Not Applicable
3/8" BSPT (f) x 3/8" NPTF (m)
SER 8568-A4
Revision (7-05)
(Obsolete)
Max. Air
Pressure
psi bar
200 14