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Farm King FK301 Operator And Parts Manual
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17Bolt Torque - Finishing MowerBolt TorqueChecking Bolt TorqueThe tables shown below give correct torque values for various bolts and hex bolts. Tighten allbolts to the torques specified in chart unless otherwise noted. Check tightness of bolts periodically,using bolt torque chart as a guide. Replace hardware with the same strength bolt.Bolt Torque*Bolt Diameter Grade 2 Bolts Grade 5 Bolts Grade 8 Bolts(inches) SAE 2 SAE 5 SAE 8“A” (lb-ft) (N.m) (lb-ft) (N.m) (lb-ft) (N.m)0.25 (1/4) 6 8 9 12 12 170.313 (5/16) 10 13 19 25 27 360.375 (3/8) 20 27 33 45 45 630.438 (7/16) 30 42 53 72 75 1000.5 (1/2) 45 61 80 110 115 1550.563 (9/16) 70 95 115 155 165 2200.625 (5/8) 95 128 160 215 220 305.75 (3/4) 165 225 290 390 400 5400.875 (7/8) 170 230 420 570 650 8801 225 345 630 850 970 1320NOTE: See page 15 for correct spindle torque. Do not use this chart for spindle bolt only.Torque figures indicated above are valid for non-greased or non-oiled threads and heads unless otherwisespecified. Therefore, do not grease or oil bolts or hex bolts unless otherwise specified in this manual. Whenusing locking elements, increase torque values by 5%.* Torque value for bolts and hex bolts are identified by their head markings. |
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