Torque specifications 1.3 – Proheat X45–School Bus User Manual
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PROHEAT INSTALLATION & SERVICE
1-6
TORQUE SPECIFICATIONS
1.3
FAN END CASTING
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Apply anti-seize to bolts (3)
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Torque bolts (3) to 75±5 in/lbs (8.5±0.5 Nm)
REGULATOR
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Apply anti-seize to cap screw
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Torque cap screw to 94±6 in/lbs (10.6±0.7 Nm)
FLAME SENSOR
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Torque sensor to 25±3 in/lbs (2.8±0.3 Nm)
IGNITER
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Apply anti-seize to igniter threads
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Ensure gasket is present before installing
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Torque igniter to 50±5 in/lbs (5.6±0.6 Nm)
COMBUSTION TUBE
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Apply anti-seize to cap screws
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Torque cap screws (4) to 25±3 in/lbs (2.8±0.3 Nm)