BIM 1004/2005/05
Page 6 of 20
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INSPECTION
1. Inspection
Interval
Inspect the motor after every 500 operating hours.
2. Inspection
Criteria
Inspect the motor according to the criteria in Table 3.
CAUTION:
IF IT IS NECESSARY TO CLEAN THE MOTOR EXTERIOR, DO NOT USE SHOP AIR.
SHOP AIR CAN FORCE CONTAMINANTS INTO THE MOTOR, AND CAN CAUSE THE
BLOWN CONTAMINANTS TO AFFECT OTHER COMPONENTS.
Inspect Check
Action
Check the external surfaces for
contamination. Accumulation of dirt and
fibrous deposits must be removed.
Clean the motor external surfaces using
clean, lint-free cloths.
Clean deposits from between cooling fins
using a vacuum cleaner and a stiff-bristled
nylon brush.
Check the external surfaces for oil film
and greasy deposits.
Clean the oil film and greasy deposits from
the motor surface using clean, lint-free
cloths.
If necessary, moisten the cloth with an
approved non-flammable, residue-free
solvent. Do not pour solvent on the motor.
Motor exterior
Check for evidence of damage or
overheating.
If the motor has physical damage, replace
the motor.
Motor mountings
Make sure the mounting hardware is
secure.
If the mounting hardware is not secure,
check the motor/gearbox alignment, and
tighten the mounting hardware.
Check that all electrical connections are
secure.
If the electrical connections are not secure,
tighten them.
Motor electrical
connections
Check the electrical connections for
evidence of arcing.
Loose electrical connections can cause
arcing, which is evident by discoloration
and charring. If you find evidence of
arcing, replace the damaged connections.
Insulation resistance
Using an ohmmeter, check and record the
resistance of motor winding insulation.
Compare the current resistance reading to
previous readings. If the resistance drops
significantly, perform an internal
inspection for insulation damage or
deterioration.
Motor Brake
On motors that have a brake, use a feeler
gauge to check the air gap in between the
brake pad and the rotor according to
NORD Gear Corporation Manual BIM-
1090, Motor Brakes Installation and
Maintenance Instructions.
If the air gap exceeds the maximum
allowed for that brake configuration
provided in the manual, adjust the air gap
or replace the brake pad according to the
instructions in NORD Gear Corporation
Manual BIM-1090, Motor Brakes
Installation and Maintenance Manual.
Table 3. Motor Inspection Criteria
Summary of Contents for ChipMaster
Page 1: ...ChipMaster Operation Maintenance Manual ...
Page 35: ...ChipMaster Conveyor Operation Maintenance Manual 35 Rev 05 2021 Notes ...
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Page 43: ...BIM 1004 2005 05 Page 2 of 20 www nord com NOTES ...
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