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5.1
MECHANICAL
SECTION V
MAINTENANCE
WARNING
ELECTRIC SHOCK CAN CAUSE PERSONAL
INJURY OR LOSS OF LIFE.
IF POWER
OFF MAINTENANCE IS BEiING FERFORMED,
VERIFY ALL POWER TO THE DRIVE SyS-
TEM IS SWITCHED OFF OR DISCONNECTED.
RECOMMEND POWER SWITCHES BE RED TAG-
GED DURING POWER OFF MAINTENANCE.
The mechanical mainteRance required for the VT-700 Drive System is very
small.
The motor should be checked occasionally for excessive noise or
vibration that would indicate bearing wear or the need for lubrication.
The inspection requirements of the power unites) (POWER OFF) are as
follows with an "every 6 months recommendation
ll
•
a.
Check all electrical connections for tightness.
b.
Look for signs of poor connections or overheating (arcing, dis-
coloration) •
c.
Manually check cooling fans (if supplied) for easy rotation.
5.2
MOTOR LUBRICATION
The recommended motor lubrication period is once a year.
The type lub-
rication to be used is given on the motor nameplate.
The following
procedure is recommended for motor lubrication:
a.
Remove plug at bottom/underside of motor.
b.
Using the grease fitting on top of motor, add grease until new
grease is seen at bottom motor hole.
c.
Run motor with bottom plug out for 30 minutes - a column of grease
will appear at bottom plug hole due to grease expansion from heat-
ing.
d.
Clean off excess grease and replace plug in bottom hole.
5-1
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