TM 10-3930-643-10 3-2. LUBRICATION INFORMATION. a.    Care    of    Lubricants.    Keep    all    lubricants    in    clean,    closed    containers    and store    in    a    dry    area    away    from    external    heat.    Don’t    allow    dust,    dirt,    or    other foreign    matter    to    mix    with    lubricants    during    storage    or    use.    Keep    all    lubrica- tion     clean     and     ready     for     use. b. Cleaning.    Keep    all    external    parts    that    do    not    require    lubrication    free of     lubricants.     Use     a     clean     cloth     to     wipe     all     dirt     and     other     foreign     matter     from lubrication    points.    Clean    caps,    covers,    plug    and    surrounding    area    before removing    them    from    the    vehicle. Clean    lubrication    points    after    lubrication    to prevent    accumulation    of    foreign    matter. c.    Points    of    Lubrication. Refer    to    LO    10-3930-643-12    for    lubrication points    and    intervals    of    lubrication. Section    11. OPERATOR/CREW TROUBLESHOOTING PROCEDURES 3-3. TROUBLESHOOTING    INFORMATION. Paragraph    3-4    lists    the    common    malfunctions which    you    may    find    during    the    operation    or    maintenance    of    the    vehicle.    YO  U should    perform    the    tests/inspections    and    corrective    actions    in    the    order listed. This    manual    cannot    list    all    malfunctions    that    may    occur,    nor    all    tests,    in- spections,    or    corrective    actions.    If    a    malfunction    is    not    listed,    or    is    not corrected    by    listed    corrective    actions,    notify    your    supervisor. 3-2