TM 10-3930-641-34-2
TEE TEST PROCEDURE FOR HYDRAULIC SYSTEM (CONT)
(Sheet 24 of 27)
LOCATION/ITEM
ACTION
REMARKS
The system components tested in Tests 12 and
24 are the same except for the control valves.
So the difference in flow rates must be the
leakage in the control valves in the circuit.
Subtract the test information for Test 24 from
the test information for Test 12.
The system components tested in Tests 24 and
4 are the same except for the cylinders. So the
difference in flow rates must be the leakage in
the cylinders in the circuit. Subtract the test
information for Test 4 from the test informa-
tion for Test 24.
Compare the test data with the data on Chart C
for the specific test. The information on
Chart C is the maximum for best performance.
NOTE
Right Side Cylinders Blocked
If the Blocked Cylinder tests give an indication
of leakage that is too high in one or more of
the cylinders, do the Blocked Cylinder Tests
for the Right Side. For best accuracy, operate
all controls through several cycles to get the
temperature of the oil in the cylinders the
same as the temperature of the oil in the hy-
draulic tank. Make the temperature of the com-
plete system 1500F (660C).
Lower all implements to the ground. Stop the
engine. Move the control levers through
OPERATE and HOLD positions to release any
Go on to Sheet 25
7-147
