TM 10-3930-643-10 I t em No. Operator/Crew    Preventive    Maintenance    Checks    and    Services NOTE : Within    designated    interval,    these    checks    are    to    be performed    in    the    order    listed. B - B e f o re D - D u r i ng A -    A f t er W -    W e e k ly Item    To    Be    Inspected Procedure:    Check    and    have    repaired,    filled or    adjusted    as    needed. f. Engine    oil    pressure    gage    pointer is     in     green     area. g. Voltmeter    pointer    is    in    low    green area     when     start     switch     is     on     RUN     and high    green    area    when    engine    is    running and     start     switch     is     on     RUN. h. Torque     converter     temperature     gage pointer    is    in    green    area. i. Engine     coolant     temperature     gage pointer    is    in    green    area. j. The    following    warning    lights    are off: Low    air,    hydraulic    filter,    engine fan    off,    engine    oil    pressure, engine     coolant     temperature,     torque converter     temperature,     ground driven    steering. N O TE If    hydraulic    filter    lights    stay    on after    the    oil    has    warmed,    have    the reservoir    filter    serviced. Equipment    Is    NOT READY/AVAILABLE IF: Gage    pointer    is    in black    area. Gage    pointer    is erratic    or    in    black area. Gage    pointer    is    in black    area. Gage    pointer    is    in red    area. Any    warning    light is    illuminated. 2-22