TM 5-6675-318-14 Table   9-1. OPERATOR   PREVENTIVE   MAINTENANCE   CHECKS   AND   SERVICES If   the   equipment only   those   items a t i o n . Make   the shut   down. B - Before W D - During M A  -  After^- Q ITEM NO. 1 2 3 9-14 lN- TER- VAL B B Q NOTE must   be   kept   in   continuous   operation,   check   and   service that   can   be   checked   and   serviced   without   disturbing   oper- complete   checks   and   services   when   the   equipment   can   be - Weekly AN - Annually (Number) - Hundreds of Hours - Monthly S -  Semiannually - Quarterly BI - Biennially ITEM TO BE INSPECTED PROCEDURE SUPPORT ITEMS Magnifier   Lamp. 1. I n s p e c t    l e n s    f o r    c r a c k s ,    b r e a k s ,    o r    d i r t. Clean   as   required. 2. Inspect   arms   and   base   for   cracks   or   breaks. Service   Magnifier   Lamp. 1. Turn   off   magnifier   lamp. 2. Apply   small   amount   of   liquid   lens   cleaner   to lens   and   wipe   clean   with   cheesecloth. 3. Turn   on   magnifier   lamp. Vacuum   Cleaner. Inspect   vacuum   cleaner   for   damage   to housing,   frayed   or   worn   power   cord,   and   proper operation   of   motor. For Readiness Reporting, Equipment Is Not Readv/ Available  if: Lens   cracked or   broken. Arms   or   base cracked   or broken. Housing   is cracked   or broken. Power   cord i s    f r a y e d, worn,   or damaged. Motor   op- e r a t i o n    is n o i s y    or improper.