Lincoln Electric CCHD1000 Safety Instruction For Use And Maintenance page 34

8695 8420 / A
Front lubricator
Rear lubricator
Bearing maintenance
Bearing inspection
As soon as the motor shows the following:
- noise or abnormal vibrations,
- abnormal heating at the bearing when it is lubricated correctly; the condition of the bearings must be inspected.
Damaged bearings must be replaced as soon as possible to prevent more significant damage to the motor and
driven parts.
When a bearing needs to be replaced, the other bearing must also be replaced.
Seals must always be changed when bearings are changed.
the floating bearing must allow the expansion of the rotor shaft (make sure to identify it during disassembly).
Bearing housing overhaul
Housings with bearings with no lubricator
Disassemble the motor; remove the old lubricant and clean the bearings and accessories with grease remover.
Put fresh lubricant: the filling rate of the housing with fresh lubricant is 50% of the free space.
Housings with bearings with lubricator
Always start off by cleaning the waste grease channel
If using the type of grease on the nameplate, remove the covers and clean the lubricator heads.
If a different grease from that on the nameplate is being used, the motor must be dismantled and the bearings and
accessories cleaned with degreasing agent (carefully clean the grease inlet and outlet pipes) to remove the old
grease before relubrication.
For proper lubrication, fill the inner free spaces of bearing retainers, flanges and grease pipes and 30% of the bearing
free space.
Then rotate the motor shaft to spread the grease.
Important:
Too much grease causes the bearing to overheat (statistics show that more bearings are damaged through too much
grease than too little grease).
Important note:
Fresh grease must be recently manufactured, of equivalent performance and must not contain any impurity (dust,
water, etc.).
CCHD
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