TM 9-2350-261-20-1Table 2-1. Unit Level Preventive Maintenance Checks and Services for M113A2 FOVChange 3 2-77N O T ESee page 2-29 for proper use oftorque wrench adapters.Use adapter (Item 8, Appendix D for6C joints or Item 7, Appendix D for 7Cjoints) to tighten screws.If you have 6C joints, tighten screws(3/8 -24 x 1-3/4) to 35-40 lb-ft (47-54N.m) torque. If you have 7C joints,tighten screws (1/2-20x2) to 83-100 lb-ft (113-136 N.m) torque. See page 2-29for torque wrench reading with adapt-e r .Lubricate U-joints every 150 hours,1500 miles or semi-annually withGAA. Clean fittings with PD 680 Typeof solvent
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