Motor And Speed Reducer Procedures; Replacing The Motor - Nordson 3400 Manual

B 2-18
Pump
4. Motor and Speed
Reducer Procedures

Replacing the Motor

B2EN-02-[3-PUMP]-5
Use these procedures to replace the motor, check the speed reducer oil,
or replace the speed reducer. Refer to the Parts section for the part
numbers of any components that need to be replaced. You can also use
the parts list illustrations as a guide while performing the following
procedures.
Follow this procedure to replace the motor.
1. Place the melter circuit breaker in the OFF position, disconnect and
lock out electrical power to the melter at the branch circuit disconnect
switch, and disconnect and lock out electrical power supplied through
any I/O wiring.
2. See Figure B 2-6. Remove the drive cover.
3. Remove the motor conduit box cover and disconnect the electrical
wires; then remove the conduit nut and separate the conduit and
wires from the motor.
4. Disconnect the motor (1) from the speed reducer.
5. Remove the speed reducer coupling (2). Apply anti-seize lubricant to
both the reducer and motor shafts. Reinstall the speed reducer
coupling.
Fig. B 2-6 Replacing the Motor
1. Motor
6. Attach the new motor to the speed reducer. Tighten the screws,
washers, and lock washers to 6.78–8.14 NSm (5–6 ft-lb).
41-3000
Issued 11/00
1
2
2. Speed reducer coupling
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