TM 9-4910-726-14&P
DRAWING 5.
DRAWING 6.
13. RAD THE GPM ON THE TESTER AT- OPERATING
16. REPEAT SAME AS IN 15 CLOSING VALVE 1 AND
PSI. CORRELATE THESE READIGS WTH PUMP
OPEN 2.
TEST STEP 9. IF THERE IS A LOSS IN GPM
OVER THE TESTER, THERE IS LEAKAGE,
17. IN THIS SYSTEM IF READINS IN PARAGRAPH 15
SLIPPAGE
OR
A
MALFUNCTIONING
AND 16 VARY AND ARE LESS THAN THE
COMPONENT IN THE SYSTEM.
READINS IN PARAGRAPH 14, OIL IS BEING
LOST IN EITHER THE VALVES OR CYLINDER.
14. CHECK THE RELIEF VALVE.
BLOCK LINE AS IN DRAWING 6, BLOCK B OR BY
18. ANALYZE THESE RESULTS AND DETERMINE IF
CLOSNG THE VALVES. DEPRESS THE TESTER
BLOCKS AND TEST SHOULD BE MADE AT
LOAD LEVER UNTIL THE RATED PRESSURE OF
POINTS C AND D.
THE RELIEF VALVE IS AHIEVED. WHEN THE
RELIEF VALVE OPENS, A SUDDEN DROP IN
19. THE CONSIDERATION IN ALL ANALYSIS IS THAT
GRM AND PSI WILL BE NOTED ON TEH TESTER
IF AT ANY POINT IN TEST THERE IS A LOSS OF
INSTRUMENTS.
GPM SHOWN ON THE TESTER AT OPERATING
RPM, TEMPERATURE AND PSI, THE OIL IS
LEAKING PAST ONE OF TME COMPONENTS
NOTE THE PSI AT WHICH THE RELIEF OPENS
RECEIVING FLOW AND PRESSURE.
AND
COMPARE
WITH
SYSTEM
SPECIFICATIONS. CORRECT RELIEF SETTING
20.
BY -ORATING WITH THE TEE TO TESTER
IF NECESSARY.
SHIFTING VALVES, DEAD ENDING CYLINDERS
AND BLOCKING LINES, A HYDRAULIC SYSTEM
CAN BE SEGMENTED AND EXAMINED.
15.
REMOVE BLOCK B WITH CONTROL VALVE 1
OPEN AND 2 CLOSED FULLY EXTENDED, THE
CYLINDER AND READ GPM AND PSI -AT
THIS TYPE OF ANALYSIS WILL LOCATE FAULTY
OPERATING TEMPERATURE AND RPM.
COMPONENTS IN PLACE ON THE SYSTEM.
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