TM 9-4910-726-14&P
PRE-OPERATIONS CHECK LIST
BEFORE STARTING EQUIPMENT
TESTING
1. WHAT ARE THE MANUFACTURERSE RATINGS
6. ACCELERATE THE ENGINE TO OPERATING RPM
FOR THE SYSTEM, PUMP, RPM, GPM, PSI AND
AND HOLD AT THAT RPM.
TEMPERATURE?
7. READ GPM ON THE TESTER FLOW GAUGE
2. CONNECT THE TESTER AS IN DRAWINGS 2 AND
BLOCKED AT POINT A.
8. LIFT LOAD LEVER C TO OUTBOARD POSITION
AND GRADUALLY APPLY PRESSURE UNTIL
3. CHECK THE TESTER CONNECTIONS AND THE
OPERATING PSI IS OBTAINED.
SYS-TEM.
BE SURE TO KNOW WHICH
COMPONENTS ARE SUBJECTED TO THE TEST OIL
9. AT OPERATING RPM, TEMPERATURE REPEAT
COLUMN AND PRESSURE DEVELOPED BY THE
VALVE PSI READ GAUGES E,B AND D.
TESTER LOAD VALVE. REPEAT THIS CHECK AFTER
EACH CHANGE OF SYSTEM CONNECTION OR
10. COMPARE THE GPM READINGS WITHOUT
VALVE POSITION.
PRESSURE IN STEP 7 WITH READINGS IN 9.
SUBTRACT 9 FROM 7. CORRELATE WITH THE
4. START THE EQUIPMENT. ASCERTAIN THAT OIL
PUMP GPM RATING. DETERMINE THE EFFICIENCY
IS FLOWING FREELY THROUGH THE TESTER AND
OF THE PUMP IN REGARD TO THE MANUPAC-
RETURNING TO THE SYSTEM RESERVOIR. IDLE
TURERIS RATINGS AND ACCEPT BILITY.
THE EQUIPMENT UNTIL THE OIL HEATS TO
OPERATING TEMPERATURE, (CA'JTION-IF OIL IS
SYSTEMS TEE TEST
NOT RETURNING TO THE RESERVOIR, CUT THE
EQUIPMENT OFF AND CHECK CONNECTIONS
11. CHANGE TESTER SYSTEM CONNECTION TO
TOTHE TESTER, THE EQUIPMENT, THE VALVE
PERMIT THE TEE TEST
SETTINGS AND THE OIL LEVEL IN THE EQUIPMENT
RESERVOIR.)
12. IN A SYSTEM SUCH AS THE ONE SHOWN IN
5. SET THE ORIFICE TO THE FLOW SCALE WHICH
VALVES AND FULLY EXTEND THE CYLIJNDERS.
PERMITS THE CLOSEST MID-SCALE FLOW
THE PUMP WILL THEN OFFER A COLUMN OF OIL
READINGS ON FLOW GAUGE, DRAWINGS 3, ITEM A
TO THE SYSTEM AND THE TESTER. DEPRESS THE
AND DRAWING 4.
TESTER LOAD VALVE C, DRAWING 3, UNTIL THE
SYSTEM OPERATING PRESSURE IS ACHIEVED.
THE OIL OUTPUT OF THE PUMP MUST THEN COME
OVER THE TESTER LOAD VALVE AT OPERATING
PRESSURE OR SLIP PAST A WORN, LEAKING
COMPONENT IN THE SYSTEM.
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