Excessive spreading of the hub could cause damage.
With the hub hole away from compressor, slide the pulley onto the shaft until 1/16 inch of the shaft is exposed.
Align the keyways on the shaft and hub and insert key. Remove the wedge.
Install the bolt and nut. Using a torque wrench tighten to 500 inch pounds.
Replace the belts following the procedures in paragraph 4-5.10.1.
k Remove the redtag for power panel 1 circuit breaker 3P5.
Start air compressor system by following the procedures in paragraph 3-2.1.
4-5.10.3 Motor pulley replacement (Barges 2 and 3)
Shut down compressor air system by following the procedures in paragraph 3-8.2.
Redtag power panel 1 circuit breaker 3P5 indicating, "WARNING DO NOT ACTIVATE REPAIRS BEING MADE."
Remove the belts by following the procedures in paragraph 4-5.10.1.
Remove set screw from the motor pulley.
Remove the pulley from motor shaft using a gear puller.
Align new pulley on motor shaft with the setscrew hole in line with the flat side of the motor shaft.
Gently tap the pulley on the motor shaft using a nonmetallic hammer.
Tighten the setscrew wrench tight.
Replace the belts and align by following the procedures in paragraph 4-5.10.1.
Remove the redtag from the power panel 1 circuit breaker 3P5.
Start the compressor air system by following the procedures in paragraph 3-2.1.
4-5.11 Air compressor general. For additional maintenance services on barge 1 air compressor, refer to paragraph 6,
and exploded views of parts lists in Instruction Book and Parts just for Direct air Compressors. For Barges 2 and 3, refer
to maintenance procedures and parts lists in Operating Manual and Service Guide for Dayton Speedaire Models in
4-5.12 Valve replacement. Replace or repack worn or damaged valves in accordance with TM 55-503.