TM 5-3810-306-34
c. Allow ports, on each side of port to be tested, to
PRESSURE TEST:
vent in order to detect leakage.
NOTE
d. Pressurize port to be tested while rotating spool
or case 360 degrees.
Use only 10W hydraulic oil for
testing hydraulic ports. Air
e. If leakage is detected disassemble swivel and
pressure should be used to
determine cause.
test the air ports.
f. Pressure check each port individually until all
1. PRESSURE TEST SWIVEL PORTS.
ports have been tested.
a. Install a pressure gauge into a port on swivel
g. Test ports with following pressures:
case.
b. Install a pressure line in the corresponding port
in the swivel spool.
Port
Test
Port
Test
Number
Pressure
Function
Number
Pressure
Function
1
500 psi
(Oil) Transmission
7
500 psi
(Oil) Reverse
(3447.5 kPa/
Shift Drain
(3447.5 kPa/
34.5 bar)
34.5 bar)
2
150 psi
(Air) Throttle
8
500 psi
(Oil) Forward
(1034.3 kPa/
(3447.5 kPa/
10.34 bar)
34.5 bar)
3
150 psi
(Air) Service
9
500 psi
(Oil) Pressure
(1034.3 kPa/
Brake
(3447.5 kPa/
10.34 bar)
34.5 bar)
4
150 psi
(Air) Park Brake
10
500 psi
(Oil) First
(1034.3 kPa/
(3447.5 kPa/
10.34 bar)
34.5 bar)
5
150 psi
(Air) Service
11
500 psi
(Oil) Second
(1034.3 kPa/
Supply
(3447.5 kPa/
10.34 bar)
34.5 bar)
6
150 psi
(Air) Auxiliary
12
500 psi
(Oil) Third
(1034.3 kPa/
Supply
(3447.5 kPa/
10.34 bar)
34.5 bar)
END OF TASK
15-82
