TM10-3930-660-20 Change the interval if your lubricants/elements are contaminated or if you are operating the equipment under adverse operating conditions, including longer-than-usual operating hours. 2-9. PMCS COLUMN DBSCRIPTION a. Item  Number  - The order that PMCS should be performed, and also used as a source of item numbers for the TM number column on DA Form 2404 Equipment Inspection b. Interval  - c. Item To Be d. Procedures performed. and Maintenance worksheet when recording results of PMCS. Tells when each check is to be performed. Inspected  -  Lists the checks to be performed. Description of the procedure by which the check is to be Perform Operator PMCS prior to or in conjunction with Organizational PMCS if: a. There is a delay between the daily operation and the Organizational PMCS. b. Regular operator is not assisting/participating. Table  2-1. Organizational Preventive Maintenance Checks and Services (PMCS) W  - Weekly Q - Quarterly S -   semiannually A -   Annually Item To Be Inspected Procedure: Check for and repair, fill or adjust as necessary CAUTION The following new vehicle (break-in) maintenance is required on the 6KVRRTFL to prevent damage to the equipment and maintain the warranty. THE FOLLOWING ITEMS MUST BE CHANGED AFTER THE FIRST 20 HOURS    OPERATION: -Transmission  oil  and  transmission  oil  filter  element. Refer  to  para.  9-7. 2-5