TM-9-4940-427-14-and-P

TM 9-4940-427-14&P
DEPARTMENT
OF THE ARMY TECHNICAL MANUAL
OPERATOR’S , ORGANIZATIONAL, DIRECT SUPPORT
AND GENERAL SUPPORT MAINTENANCE
MANUAL INCLUDING REPAIR PARTS LIST
FOR
SEPARATOR, OIL AND WATER
MODEL 303C
(SHARPE MFG. CO.) (4940-00-242-4101)
HEADQUARTERS,
DEPARTMENT OF THE ARMY
31 OCTOBER 1980
TM 9-4940-427-14&P
HEADQUARTERS
DEPARTMENT OF THE ARMY
Washington, DC, 31 October 1980
Technical Manual
No. 9-4940-427-14&P
OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT
AND GENERAL SUPPORT MAINTENANCE
MANUAL INCLUDING REPAIR PARTS LIST
FOR
SEPARATOR, OIL AND WATER
MODEL 303C
(SHARPE MFG. CO.)
(NSN 4940-00-242-4101)
REPORTING OF ERRORS
You can help improve this manual. If you find any mistakes or if you know of a way
to improve the procedures, please let us know. Mail your letter, DA Form 2028
(Recommended Changes to Publications and Blank Forms), or DA Form 2028-2,
located in the back of this manual direct to: Commander, US Army Armament
Materiel Readiness Command, ATTN: DRSAR-MAS, Rock Island, IL 61299. A
reply will be furnished directly to you.
NOTE
This manual is published for the purpose of identifying an
authorized commercial manual for the use of the personnel to
whom this separator is issued.
Manufactured by:
Sharpe Manufacturing Co.
1224 Wall Street
Los Angeles, CA 90015
Procured under Contract No. DAAA09-76-D-6002
This technical manual is an authentication of the manufacturers’ commercial
literature and does not conform with the format and content specified in AR 310-3,
Military Publications. This technical manual does, however, contain available
information that is essential to the operation and maintenance of the equipment.
i/(ii blank)
TM 9-4940-427-14&P
INSTRUCTIONS FOR REQUISITIONING PARTS
NOT IDENTIFIED BY NSN
When requisitioning parts not identified by National Stock NUMBER, it is
mandatory that the following information be furnished the supply officer.
Manufacturer’s Federal Supply Code Number Manufacturer’s Part Number exactly as listed Herein. Pages 2 and 3 )
Nomenclature exactly as listed herein, including dimensions,if
necessary.
Manufacturer’s Model Number -
303C
Manufacturer's Serial Number (End Item)
Any other information such as type, Frame Number, and Electrical
Characteristics, if applicable.
If DD Form 1348 is used, fill In all blocks except 4, 5, 6, and
Remarks field in accordance with AR 725-50.
Complete Form as Follows:
(a) In blocks 4,5,6,list manufacturer’s Federal Supply Code
followed by a colon and manufacturer’s
Number Part Number for the repair part.
(b) Complete Remarks field as follows:
( nomenclature of repair part)
Noun:
NSN: 4940-00-242-4101
For:
Manufacturer: Sharpe Mfg. CO.
Model: 303C
Serial: (of end item)
Any other pertinent information such as Frame Number,
Type. Dimensions, etc.
iii/(ivblank)
TM 9-4940-427-14&P
MANUAL FOR
MODEL 303C OIL & WATER SEPARATOR
MIL-S-12928E CLASS II
The Model 303C is made up of the 303 Air Filter and two 18C-3R Air
(attached), which
Part Sheet
Regulators as shown on
provides an exploded view of both.
The 303 air filter section of the 303C is where the compressed air is
cleaned of contamination (dirt,rust,etc.) and moisture,which is generally a
mixture of oil and water. In operation, the unit should be drained daily.
This is accomplished at the drain cock (1-HC-320).
To insure maximum efficiency, the reusable filter element (1-303-19)
should be inspected at least every three months. This is accomplished as
follows:
1. Relieve the unit of air pressure.
2. Loosen the cap nuts (1-303-07), using 3/4” wrenches.
3. Remove the lower cap nut (1-303-07), bottom casting (1-303-02),
and filter housing (1-303-03).
The filter element (1-303-19) is an edge type filter and all the contamination collects on the outside of the element. If it is excessive, remove
the element and clean. This is accomplished as follows:
1.
2.
3.
4.
5.
6.
Unscrew the upper cap nut (1--303--07) from the center rod
(1-303-04). This removes the main baffle and filter assembly.
Clean the filter element in solvent.
Install the main baffle and filter assembly by inserting the
center rod (1-303-04) thru the upper casting (1-303-01) and
screwing on the upper cap nut (1-303-07) hand-snug.
Install the filter housing (1-303-03), bottom casting (1-303-02),
and lower cap nut (1-303-07).
Tighten upper and lower cap nuts (1-303-07) with wrench.
The unit is now ready for service.
The 18C-3R is the air regulator section of the 303C, and it is here the
regulation of air pressure is accomplished through the operation of the thumb
screw (1-18-20). When the thumb screw is turned clockwise, the indicated pressure on the gage (GA-160) will increase. To decrease the pressure, simply
turn the the thumb screw counterclockwise.
TO increase the life of the diaphragm (1-18-10), the thumb screw should
be turned counterclockwise until the gage reads zero when the unit is not in
operation for extended periods of time. It is good practice, for instance,
if the unit is not being used at night, to have the day crew leave the unit
set at zero.
Troubleshooting of the 18C-3R is generally confined to two areas--the
diaphragm (1-18-10) and the valve stem (1-18-09). If the gage (GA-160) is
acting erratically, and air is coming out of the relief hole in the bonnet
(1-18-02A), then the diaphragm is faulty. If the same condition exists and
air is not coming out of the above-mentioned relief hole, then the trouble
is in the valve stem. Generally, something is keeping it stuck open.
To check either part, the following procedure should be followed:
1.
2.
Remove all pressure from the unit.
Unscrew the machine screws (1-18-21), and the unit will disassemble as shown on Parts List
1
TM 9-4940-427-14&P
TM 9-4940-427-14&P
3
By Order of the Secretary of the Army:
E. C. MEYER
General,
United
Chief
Official:
J. C. PENNINGTON
Major
General, United States
The Adjutant General
DISTRIBUTION:
Army
of
States
Staff
Army
PIN: 047498-000
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