TM  10-3930-643-34 FRAME  AND  TOWING  ATTACHMENTS  MAINTENANCE. 10-3. Counterweights. (Sheet 1 of 4) This task covers: a.  Removal b. Installation INITIAL  SETUP Tools Torques Bolts (4 and 18) to 280 lb-ft. Tool  Kit,  General  Mechanic’s Bolt (8) to 680 lb-ft. Automotive NSN 5180-00-177-7033 Shop Equipment, Automotive Maintenance  and  Repair: Field  Maintenance,  Basic, Less  Power NSN 4910-00-754-0705 Shop Equipment, Automotive Maintenance  and  Repair: Field Maintenance NSN 4910-00-919-0076 1-1/2"  Open  end  wrench NSN 5120-00-184-8489 Hoist and sling, capacity of 2562 lbs. EQUIPMENT  CONDITION References TM  10-3930-643-20 Condition  Description Pintle hook and drawbar removed. Go to sheet 2 10-19