REED LOHE VI Series, Operation, Maintenance And Parts Manual

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BIM 1004/2005/05 Page 10 of 20 www.nord.com
3. Installation with NEMA and IEC Flanges
Refer to NORD Gearbox Inputs Installation and Maintenance Instructions in BIM1009.
A.
Make sure the flanges are clean and free of gasket material. Install a new gasket between the mating flanges, if
applicable.
B. Carefully move the motor to insert the motor shaft and its hub/sheave into the adapter spline, making sure the
shaft key enters the mating keyway.
C. Seat the motor flange against the mating flange. Install the mounting bolts and tighten them securely.
D. Reconnect the wiring to the motor. Refer to Figure 2 for the motor and options connection diagrams.
4.
Removing and Replacing C-Face Motors
A.
Shut off the power to the motor and post the shutoff with an “OUT OF SERVICE” placard. Disconnect the
wiring to the motor. Tag each wire as it is disconnected.
B. Support the motor. Remove four bolts securing the motor to the NEMA or IEC adapter.
NOTE: The bolts securing the motor to the adapter are retained using a medium strength thread locker such
as blue Loctite.
C.
Pull the motor straight out from the adapter.
D. Measure and record the dimension from the coupling to the motor flange. Use this dimension to locate the
coupling on the replacement motor.
E. Install a new drive key in the keyway, staking the key or using Loctite to retain the key in the keyway,
according to the following instructions:
1) If the drive key is not trapped in the keyway (the keyway is open at both ends), stake and install the
drive key as follows:
a. Make sure the keyway is free of contamination so that the drive key will seat properly.
b. Add a few drops of an approved lubricant to the keyway.
c. Place the drive key on an appropriate surface with the shaft side of the drive key up. Stake the
key in two places near each long edge to deform the edge outward.
CAUTION: SUPPORT THE MOTOR SHAFT BEFORE STAKING THE KEY TO PREVENT
DAMAGE TO THE MOTOR BEARINGS.
d.
Support the motor shaft in V-blocks. Place the key with the staked surface down over the key
slot. Place a sheet of copper shimstock, or equivalent, on the drive key and tap it into the keyway
using a hammer.
e. Check the key to make sure it is fully seated and securely retained.
2) Install and Loctite the drive key as follows:
a. Make sure the keyway is clean of old Loctite and is free of oil film.
b. Apply Loctite primer and medium strength (blue) Loctite to the surface of the key and keyway
according to the Loctite instructions.
CAUTION: IF THE DRIVE KEY IS TO BE LOCTITED IN PLACE, CLEAN ALL THE
LOCTITE FROM THE SURFACE OF THE DRIVE KEY AND THE MOTOR
SHAFT TO PREVENT POSSIBLE BONDING OF THE COUPLING AND
SPLINE SHAFT TO THE DRIVE KEY.
c.
Install the drive key and center it in the keyway. Cure the Loctite according to Loctite
instructions.