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Service Manual 32 – Contour 3 Series, Profiler & Advance – Approved Issue 5 Printed 2/13/2014 11:50:17 AM
59
Cooler Operation.
(cont.)
Fan Operation
(cont.)
Dismantling - Fan and Fan Motor Removal
•
Remove thumb screws from roof panel.
•
Remove the 4 filter pad frames and support tube brackets.
•
Isolate power supply on the switch under front left hand side of the cooler.
•
Close the Servoseal / Drain valve and drain tank of water.
•
Remove the 2 screws from the service access panel and open cover.
•
Unplug the Trident loom plug from the N-E5 control.
•
Remove the pump inlet lock nut from the tank base.
•
Remove the 4 screws that secure the tank to the coolers sub frame, then lift up
and remove the tank assembly.
•
Remove motor wire loom terminals on the motor supply loom terminal block
located on the service compartment back wall.
•
Feed back the wiring into the fan motor assembly area and disconnect the cable
ties from the motor bracket
•
Disconnect the speed sensor loom from the N-E5 circuit board, and feed back the
wiring loom to the motor assembly.
•
Loosen and remove the nuts on the fan impellor retaining bracket bolts.
•
Place a 50mm or larger socket fitting or similar, over the motor shaft and fan
impellor retaining bracket, so that it seats on the fan impellor hub body. Use a
mallet to hit the 50mm socket fitting, to release the tapered bracket cone from the
hub, loosening the impellor on the motor shaft.
•
Remove impellor.
•
Support the motor's weight, then loosen and remove the 2 nuts and washers on
the bolts that secure the fan motor mounting bracket around the motor's case.
•
Lower fan motor down and out of the mounting bracket.