BLACKMER IOM E Series, Installation, Operation & Maintenance Manual, Page: 43 / 52

1901-a00 43
8. Position the head with the crescent facing upward and set idler assembly and spindle in place.
Head/Idler/Spindle Unit
9. Carefully insert the head/idler/spindle unit into the rotor. Take care to avoid cracking or chipping the carbon bushings.
10. Rotate the head so that the rotor and idler mesh are between the ports.
11. Insert the screws that hold the head to the casing and torque them to their final values:
a. 10 mm (3/8”) screws: 54 N•m (40 ft-lb)
b. 13 mm (1/2”) screws: 88 N•m (65 ft-lb)
c. 16 mm (5/8") screws: 61 N•m (45 ft-lb)