Envirco MAC 10 Original - Manual (Page 15)

MAC 10 ORIGINAL VE5 SERVICE MANUAL
PAGE 14
7 SERVICE: Removal and Installation of the RSRE Motor
WARNING!
Disconnect the unit from the electrical power source before attempting any
service.
WARNING!
Electrical service should be performed by licensed electricians or authorized
ENVIRCO service technicians.
Step 1. To gain access to the motor, remove the gel seal filter (see Section III).
Step 2. While supporting the baffle assembly from below, remove the four corner
screws on the baffle assembly and lower the assembly. (See Figure 7)
Step 3. Prior to removing motor/blower assembly, remove electrical box cover (located
underneath the lid panel) to expose motor connectors. Disconnect the nine pin
connector from it’s mate in the prefilter bracket.
Step 4. While supporting the motor/blower assembly from below, remove the six
machine screws that secure the venturi ring to the bottom face of the lid.
Step 5. Using a 5/32”(0.40 cm) Allen wrench, remove the blower wheel from the motor
shaft. Remove motor from the venturi ring by removing the three # 10 bolts.
Step 6. Before removal of the motor mount bracket, measure the precise location of
the bracket on the motor. Remove the bracket.
Step 7. Replace with the new motor and reassemble by reversing the above steps. Set
the location of the motor mount bracket as measured (see above Step 6). Set
the spacing between the venturi ring and the blower wheel at 0.06”(0.15 cm)
clearance. When reinstalling the motor plate, align the plate to insure that the
leads will reach the electrical box.