Shibaura MC60RD, Руководство оператора

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21
BOLT TORQUE CHART
STANDARD FASTENER TORQUES
Mounting bolts and fasteners may tend to work loose during operation due to vibration or stress. A
visual check of the complete tractor/mower should be made daily. All fasteners should be checked for
correct retention torque weekly, and more often if the unit is being operated in rough areas.
All locally procured fastening hardware should be Grade 5 or equivalent. Use the chart on pages 22-
23 for general torque specifications for fasteners. Special fastener torques for the mower are shown
separately below.
NOTE:
All standard torque specifications apply to plated or oiled fasteners. When dry or non-plated fasteners
are used, increase specified torque values by approximately 20%.
SPECIAL FASTENER TORQUES
IMPORTANT
Follow instructions on page 11 for blade bolt and pulley nut torquing procedure. DO NOT use the
pulley nut to hold the shaft from turning during blade tightening, as the pulley nut will be over torqued
which could cause spindle spacer and bearing damage.
Mowing Blade Retaining Bolt - Grade 8(9/16-12 x 1-3/4)
110 to 130 ft. lbs. (150-177 Nm)
Spindle Pulley Retaining Nut (3/4-16 UNF) 80ft. lbs. (109 N
Spindle Housing Retaining Nuts (7/16-20 UNF) 35-45 ft. lbs. (48-61 Nm)
Gearbox Housing (Socket Head Bolts) 15-20 ft. lbs. (20-27 Nm)