MOTOR REMOVAL & INSTALLATION TOOL LIST
Socket (7/16")
Deep Socket (9/16")
Open End Wrench (13/16")
Socket and Driver (7/32")
Open End Wrench (3/4")
Loctite #545 or Pipe Seal
Duct tape for sealing motor ports
3 pieces of wood blocking cut to 12"
CAUTION:
This unit is UL/CUL listed for use in hazardous locations. The grounding system links
all metal components together, If you fail to properly reattach grounding stud rings, washers, star
washers, and bolts, static electric build-up can result. The UL/CUL listing for this unit will also be
null and void.
MOTOR REMOVAL PROCEDURES
Step One:
Remove Grills and Duct Rings from the front and rear of the unit. Use a ¼" ratchet and a 7/32"
socket to remove bolts, washers and star washers. Store these components in a safe place. They will be
needed for the reassembly of the unit.
Step Two:
Position the unit so that the back of the motor is facing you. Disconnect air hoses from the motor
by pushing in on the ferrule lock ring while pulling on hoses.
Step Three:
Use a 13/16" open end wrench to spin off brass hex fittings from the air motor. NOTE: A ¾" open
end wrench may also be needed to spin off air connection ferrules of the 90° elbow because of limited space.
Step Four:
Lay unit down with the fan blade facing up. Remove the nylon nut that holds the blade on shaft
with a 9/16" open end wrench and remove the 3/8" flat washer. You may need to wedge the fan blade to pre-
vent rotation during this procedure.
Step Five:
Flip unit so that blade is facing workbench. Create a 3-legged
brace with pieces of wood cut approximately 12" in length. Pound gently on
the center of the cross beam to release the fan blade from the shaft.
NOTE:
Even pressure is required on at least two points at the same time to
release the fan hub without causing damage to the blade assembly or motor
shaft.
CAUTION:
Striking the back of the fan hub directly with a hard or sharp object (e.g. hammer or
screwdriver) may damage components.
