Instruction Book
Page 47
IB131009EN
6-10 LUBRICATION
All parts that require lubrication have been lubricated
during the assembly with molybdenum disulphide
grease. Eaton No. 53701QB. Over a period of time, this
lubricant may be pushed out of the way or degrade.
Proper lubrication at regular intervals is essential for
maintaining the reliable performance of the mechanism.
Once a year or every 2000 operations whichever
comes first, the breaker should be relubricat- ed. The
locations shown in Figure
6-1
should be lubri- cated
with a drop of light machine oil. After lubrication,
operate the breaker several times manually and electri-
cally.
Roller bearings are used on the pole shaft, the cam
shaft, the main link and the motor eccentric. These
bearings are packed at the factory with a top grade slow
oxidizing grease which normally should be effective for
many years. They should not be disturbed unless there
is definite evidence of sluggishness, dirt or parts are dis-
mantled for some reason.
If it becomes necessary to disassemble the mecha-
nism, the bearings and related parts should be thor-
oughly cleaned. Remove old grease in a good grease
solvent. Do not use carbon tetrachloride. They should
then be washed in light machine oil until the cleaner is
removed. After the oil has been drawn off, the bear-
ings should be packed with Eaton Grease 53701QB
or equivalent.
6-11 TROUBLESHOOTING CHART
SYMPTOM
INSPECTION AREA
CONTROL DEFECTS
Fails To Close
• Closing Springs not charged
• Control Circuit
• Control Power
(fuse blown or switch off)
• Secondary Disconnects
• Motor Cut-off Switch
(Poor or burned contacts,
Lever not operational)
• Terminals and connectors
(Poor or burned contacts)
• Motor
(Brushes worn or commutator
segment open)
• Mechanism
• Pawls
(Slipping or Broken)
• Ratchet Wheel
(Teeth worn or broken)
• Cam Shaft Assembly
(Sluggish or jammed)
• Oscillator
(Reset spring off or broken)
Summary of Contents for W-VAC Series
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