Direct Support and General Support Maintenance Manual: Mast AB-621/G (NSN 5985-00-782-5278), Mast AB-621A/G (NSN 5985-01-061-2828), Extension Kit MK-2044/G (NSN 5985-01-119-2925).
Headquarters, Department of the Army, 1990 - Masts and rigging
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29 SCREW antenna Army ASSEMBLY 20 axle AZIMUTH RING ball end bolts and nuts brackets brake assembly CABLE ASSEMBLY cable pulley cable stud Check for damaged clean Compressed air decomposition are toxic direct support maintenance dissolves natural oils drive DRSEL-ME-MP elevator cable ETHANE exploded view Figure flange front plate gearbox graphite grease groove pin guide plate assembly GUY CONTROL DEVICE guy ring plate guy ring race hole Inspect KNURLED launcher frame LOCKING locknut lockwasher lower guide plate machine bolt maintenance procedures manual Mast Carrier mast section operation pin punch reassemble reel assembly reel lockpin Refer to TM Removal and Replacement Remove the winch roller guide assembly rotate the reel screws 12 secure self-locking nut six screws Slide solvent cannot penetrate spacer spring pin Step SUPPORT MAINTENANCE INSTRUCTIONS surfaces tenna Test thrust washer 11 tighten TRICHLOROTRIFLUORO TRIFLUOROETHANE Troubleshooting Upper Guy Ring winch base Winch Studs worm gear worm shaft