TM 5-3805-280-24-1
Tests
5. Disconnect drain line (A) from return manifold. Install a
cap on elbow. Put drain line in a calibrated container.
CAUTION: To avoid personnel injury, clear area
of all bystanders before doing test. Slowly
swing through one complete revolution to
ensure that the area is clear of objects before
doing test.
6. Raise and lower boom to pressurize hydraulic oil tank.
7. Operate swing function for one minute. Compare
amount of leakage to specifications. Repeat for swing
in opposite direction.
Engine in Standard Mode--Specification
Speed ........................................................................................... Fast Idle
Work Mode Selector--Specification
Position ........................................................................................ Dig Mode
E Mode Switch--Specification
Position .................................................................................................. Off
HP Mode Switch--Specification
9025
A--Swing Motor Drain Line
25
Position .................................................................................................. Off
B--Cap
131
Auto-Idle Switch--Specification
Position .................................................................................................. Off
Swing Motor--Specification
Leakage ................................................. 0.2--1.0 L/min (0.05--0.26 gpm)
new acceptable while swinging
Leakage .............................................................. 2 L/min (0.53 gpm) used
maximum acceptable while
swinging
8. Operate swing function at stall for one minute. Put the
bucket against an immovable object or in a trench then
hold swing control lever fully actuated to stall swing
function. Compare the amount of leakage to
specifications.
Continued on next page
TX,9025,GG2666
1908JUN983/4
6-262
