GSI Outdoors PNEG-377 - Manual (Page 23)

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Fan and Heater
Hub Bolt Torque Requirement for Fan Blades
FAN SERVICE
A. 3-15HP 3500RPM fans............................16ft. lbs. (Browning)
B. 20-50HP 3500RPM fans..........................29ft. lbs. (Browning)
C. 3-50HP 1750RPM fans............................29ft. lbs. (Browning)
D. 3-7.5HP 1750RPM fans.........................125ft. lbs. (Trantorque)
E. 10-20HP 1750RPM fans........................160ft. lbs. (Trantorque)
F. 30-50HP 1750RPM fans........................200ft. lbs. (Trantorque)