OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) - Continued

OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) - Continued - TM-5-3810-306-10_48

OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) - Continued - TM-5-3810-306-10_50

TM-5-3810-306-10 Container Crane 40-Ton Rough Terrain Model RTB75CC Manual
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TM 5-3810-306-10 OPERATOR PMCS (CONTD) INTERVAL ITEM NO. B D A W M ITEM TO BE INSPECTED PROCEDURE: CHECK FOR AND HAVE REPAIRED, FILLED, OR ADJUSTED EQUIPMENT IS NOT READY/AVAILABLE IF: NOTE See item 27 to check function of Boom Angle Indicator. NOTE If you cannot clearly see the hook block approaching the boom, you should have an assistant watch the hook block. You should be prepared to stop the crane immediately if the LMI system does not function properly by lighting the red warning light, sounding the audible alarm and locking the dangerous crane movements. a. Check anti-twoblock alarm light and audible alarm by manually lifting the weight attached to anti-twoblock switches. b. Slowly raise the main boom hook block to bring it into contact with switch weight. When the hook block lifts weight, audible alarm should sound; anti-twoblock alarm light should light and motion of hook block should be stopped. Lower hook block slightly to eliminate this condition. c. Slowly lower or extend boom to create a potential two-block condition. When hook block lifts weight, alarm should sound, anti- twoblock alarm light should light and boom lowering and/or boom extension function should be stopped. NOTE: If the light and audible alarm do not function as described and the crane move- ments are not stopped, the system is not working properly. The malfunction must be corrected before operating the crane. Change 1 2-25

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