TM 9-2330-381-14
2.
If fluid level is above top line of FULL mark, system is overfilled. First check for proper gooseneck and platform
heights. Readjust if semitrailer is not properly adjusted. If fluid level is more than 1 inch over top line of FULL mark,
proceed as follows:
a. Operate semitrailer (chapter 2, section III) and check for sluggish or slow operation which may be caused by air
trapped in hydraulic system.
b. If improper operations are found, refer to bleeding procedure and bleed hydraulic system (para. 4-19).
c. If all operations are normal and hydraulic fluid level is still high, proceed as follows:
NOTE
One person should monitor fluid level indicator while on top of gooseneck while
other person drains fluid from rear of hydraulic control panel.
(1) Drain fluid from hydraulic tank by loosening hose fitting (1) at rear of hydraulic control module (2).
(2) Allow fluid to drain from hydraulic tank into drain pan until fluid level is approximately in middle of FULL mark.
(3) Tighten hose fitting (1).
(4) If too much hydraulic fluid was drained, refill to proper level per following fluid fill procedure.
Change 1 4-67
