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REPLACEMENT OF DRIVE MOTOR Disconnect main power to the ice flaker. Remove electric wiring cover on the drive motor. Remove the power leads attached to terminals marked L1 and L2. Refer to exhibit 30 The drive motor is attached to the gearbox with (4) bolts, through the motor mounting plate. Remove the (4) bolts., The motor may be removed by pulling it away from the gearbox. There are no set screws or couplings, the motor shaft fits directly into the hollow high speed input shaft on the speed reducer with a ¼" key. If the old motor cannot be removed easily, then locate two threaded holes on the motor mounting plate. They will be on the horizontal center line, one on each side of the input shaft. Insert one of the mounting bolts into each threaded hole so they push against the drive motor ( you may have to rotate the motor housing so the bolts can press against the mounting lugs on the motor, making sure the bolts do not thread into the mounting lugs.) Turn in both bolts until they are hand tight, then turn in each bolt ½ turn at a time, alternately until the motor if free enough to remove by hand. When installing the new motor, place the ¼ key on the shaft, lightly grease the surface of the motor shaft, and insert in the hole on the high speed input shaft, keeping the keyway aligned with the key. When the motor is in place, rotate it until the mounting lugs are aligned with the (4) mounting holes on the motor mounting plate on the speed reducer. Insert a bolt in each hole and tighten. Re attach the flexible power cable to the motor, connect the power leads to terminals marked L1 and L2, check to insure the motor is wired for the correct power (115 or 230) and for the correct rotation (CCW). Refer to wiring connections on the motor nameplate for the correct connections. When the motor is reattached and connected, turn on power and check operation. Place an ammeter on the power line and check to insure the motor is drawing within the nameplate FLA. REPLACEMENT OF SPEED REDUCER & FLEXIBLE COUPLING Disconnect main power to the ice flaker. Refer to exhibit 30. Remove the drive motor as described above, remove (4) mounting bolts attaching the gearbox to the top aluminum casting. The gearbox can then be lifted straight up, The top part of the flexible coupling will lift off with the gearbox, the bronze star and bottom part of the coupling will stay attached to the main shaft. Loosen the set screw on the top part of the coupling to remove it from the gearbox. Care should be taken to avoid oil from seeping out the relief vent (located on the top if the gearbox in a set screw) if the gear box is turned on its side or up side down. The bottom part of the flex coupling is attached to the shaft with a set screw. Loosen the set screw, then lift the coupling off the shaft. The use of a gear puller may be required to assist in removing either part of the coupling. Install the new ( or existing if it is not damaged) flex coupling to the shaft and speed reducer, lining up the keyways with the key. Re-tighten the set screws in both parts. Place the bronze star on the bottom part of the coupling. Install the gear box ( with top coupling attached) onto the top casting, over the bottom part of the flex coupling. If the gear box does not sit on the top casting properly, you may need to loosen one or both of the set screws on the flex coupling to allow the gearbox to seat on the machined surface of the casting. There should also be a 1/16" gap between the top coupling half and the bronze star. Rotate the gearbox COUNTERCLOCKWISE ONLY until the mounting holes line up. Once aligned re-install the mounting bolts. Re-position coupling halves with required clearance and re-tighten.
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Howe Corporation 1650 N
Elston Ave, Chicago, IL. 60622 USA. Telephone 1-773-235-0200 Copyright © 2006 Howe Corporation
Rev. 07/03/08
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