TM 9-2330-390-14&P3-7. CHECKING AND FILLING HYDRAULIC FLUID (Con't).d. If checking hydraulic fluid level afterreplacement of a hydraulic component (hydraulic cylin-der, control valve, etc.), start engine (seeparagraph 2-20) and operate hydraulic control valve tocirculate hydraulic fluid throughout system (see para-graph 2-21). Check level of hydraulic fluid (see steps band c).e. Lock pivoting tray lockout brace (2) tolower bracket (3) with hitch pin (5) and safety pin (4).3-8. CHECKING AND FILLING CRANKCASE OIL.NOTEPerform this task at both front and rear dollyengines.a. Checking Crankcase Oil Level.(1)Park dolly set on level ground. If pivot-ing tray (1) is not level, remove safety pin (4) and hitchpin (5) and unlock pivoting tray lockout brace (2) fromlower bracket (3).3-23
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