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DESCRIPTION
Model 7783 Series Pumps are single-action, low pressure units de-
signed to deliver fluid lubricants from original containers or bulk
tanks.
The differences in the pumps are that model 7783-A4 is used with
55-gallon drums , model 7783-B4 is used with 16-gallon drums and
model 7783-C4 is a stub pump and can be used with extensions .
All models produce a 6:1 material-to-air pressure ratio. The maximum
operating air pressure of 200 psi would,therefore, create a maximum
material pressure of 1200 psi.
The pumps are capable of supplying a high volume of lubricant at a
low rate of speed (e.g.-At 100 psi air pressure,the pump delivers 10
gallons of SAE No. 140 gear oil per minute).
NOTE: The air motor (323440-4) is packed with lubricant at the fac-
tory and should require no additional lubrication.
SPECIFICATIONS
PUMP:
Ratio ..............................................................................................:6:1
Recommended Operating Air Pressure ..............................50-175 psi
Maximum Operating Air Pressure ........................................... 200 psi
Maximum Operating Material Pressure .................................1200 psi
Displacement ..............................................................9.8 cu. in./cycle
Weight (basic pump, approx.) ................................................... 50 lbs.
Dimensions (Figure 1):
"A" (Model7783-A4) ...................................................... 51-23/32"
(Model 7783-B4).........................................................44-7/32"
(Model Tl83-C 4) ..........................................................32-1/8"
"B" (Model 7783-A4) ................................................................33"
(Model7783-B4) ......................................................... 25- 1/2"
(Model 7783-C4) ...................................................... 13-13/22"
FOR FURTHER SERVICE, CONTACT YOUR LOCAL ALEMITE DISTRIBUTION CENTER
396686
SERVICE INSTRUCTIONS
7783-A4 , 7783-B4 and 7783-C4
Low Pressure Fluid Lubricant Pumps
Alemite , LLC
167 Roweland Drive, Johnson City, Tennessee 37601
www .alemite.com
Figure 1: Series 7783 Low-Pressure Pump
AIR MOTOR:
Air Inlet ........................................ ....................................3/4" NPTF
Air Outlet ...........................................................................1 /4" NPTF
Material Outlet ....................................................................1/2" NPTF
Piston Diameter ......................................................................... 4-1/4"
Stroke................................................................................................4"
GENERAL SAFETY REQUIREMENTS
Because these units are incorporated into pressure pumping systems,
it is good practice to observe and use the following safety precautions:
1 Do not exceed the pressure rating of any component in the system.
2 Protect all material and air supply lines from damage or puncture.
1
SER 7783-A4
7783-A4
7783-B4
7783-C4
SER 7783-A4
Revision (3-15)
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Table of Contents
Related Manuals for Alemite 7783 Series
Summary of Contents for Alemite 7783 Series
- Page 1 Low Pressure Fluid Lubricant Pumps 7783-C4 DESCRIPTION Model 7783 Series Pumps are single-action, low pressure units de- signed to deliver fluid lubricants from original containers or bulk tanks. The differences in the pumps are that model 7783-A4 is used with 55-gallon drums , model 7783-B4 is used with 16-gallon drums and model 7783-C4 is a stub pump and can be used with extensions .
-
Page 2: List Of Accessories
Cover Assembly for 120-pound Drums 323800-4 Cover Assembly for 400-pound Drums 323847-4 Bung Adapter 326750-B1 Low-Level Cut Off Switch (7783-C4 only) 321206 Extension Tube (7783-C4 only) 337123-1 Figure 2: Components of Series 7783 Low-Pressure Fluid-Lubricant Pumps Revision (3-15) Alemite LLC... -
Page 3: Installation
1 Check for any damage to material or air supply lines. 2 Check all connections and fittings for tightness. 3 ft. (0,9 m) 95 dB 95 dB 3 Check level of material in drum. NOTE: Do not allow pump to run “dry” at any time. Alemite LLC Revision (3-15) - Page 4 2 Remove washer 323419 and bushing 324274 from adapter. 3 Unscrew three screws 323787 and pull body 323786 from air motor assembly. 4 Remove ”O” rings 171009-33 and 171009-35 from body. Figure 3: Body and Packing Group Revision (3-15) Alemite LLC...
- Page 5 Fluid Lubricant Pump SER 7783-A4 Figure 4: Pump-Tube Assembly for Model 7783-C4 Figure 5: Pump-Tube Assembly for Models 7783-A4 & 7783-B4 Alemite LLC Revision (3-15)
- Page 6 333356-1, 333356-2 (Figure 5) or observe the accompanying notes. 333356-3 (Figure 4). 3 Remove lower spring clip 324648 from upper coupling 323439. Un- thread and remove upper coupling from rod 323438-2 (Figure 4), 323438-1 or 333438-5 (Figure 5). Revision (3-15) Alemite LLC...
- Page 7 171009-35 “O” Ring, 1-15/16” l.D. x 2-1/8” O.D ■ 172190-5 Seal, 1”1/16’’ O.D. and 1/4” thick ■ 172190-6 Seal, 1-9/16” O.D. x 3/8”thick 323419 Washer, 7/8” l.D. x 1-19/64” 0.0 323693 Aluminum Gasket, 1-29/32” O.D 337361 Washer,1-35/64” O.D 337362 Lantern Ring 337363 Spacer ■ See note in Kit 398986-2. Alemite LLC Revision (3-15)
- Page 8 SER 7783-A4 Fluid Lubricant Pump PARTS LIST• 7783 Series Lubricant Pumps (Figure 2) Part No. Description Qty. ■+ 323440-4 Air-Motor Assembly 323842 Eyebolt (7783-A4 and 7783-B4) • 324648 Spring Clip 328031 Air Coupler (Female) 328037 Male Adapter 333256 Jam Nut, 2-16 UN *+ Body’ and Packing Group (Figure 3)
- Page 9 Parts availability and prices are subject to change without notice PART CHANGES SINCE LAST PRINTING Correct heading Loctite and 242 are Trademarks of Henkel Corporation in the U.S. and elsewhere. ® denotes a trademark registeresd in the U.S. Patent and and Trademark Office. Alemite LLC Revision (3-15)
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Page 10: Applied Standards
Pump Units for Liquids - Common Safety Requirements • EN 349 Safety of Machinery - Minimum Gaps to Avoid Crushing of Parts of the Human Body St. Louis, MO 08/14, Bob Hoefler, Director Product Development and Product Engineering Revision (3-15) Alemite LLC...
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