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a rattling or scraping noise at drive casing
abnormal vibration during no-load operating
unusual high temperature of cover plate
When replacing the bearing, be sure to completely remove damaged parts and metallic particle. Then, apply
clean grease to the new bearing sufficiently.
Do not attempt to replace bearing in the field. Maintenance job for the bearing always should be
performed in the properly equipped workshop by a well-trained service personnel.
WARNING!
While servicing the bearings, protect
hands or fingers from injury.
Removal:
1.
Drain all gear oil.
2.
Remove hydraulic hoses from the motor.
3. Remove the hydraulic motor, cover.
4. Remove the damaged bearings and any broken metal pieces from the housings.
5.
If metal pieces enter into the drive casing, remove the cover and eccentric shaft. Thoroughly clean the inside of the
drive casing.
Installation:
1.
Keep clean all the parts which removed.
2. Assemble the eccentric shaft and cover.
3. Pack the new bearings with grease. Then, insert the bearings into the cover.
4. Assemble other parts in reverse order of the removal procedure.
5.
Be sure to follow the specified tightening torque.
6.
Refill gear oil.
Cushion plates (rubbers)
Because the cushion plates are subject to high load and large deflection, scratch, aging by oxidization, etc.,
it is required to check and replace them periodically.
Although the life of cushion plates depends primarily on operating time, it can be affected by working
environment and other factors. Extremely high or low temperature, humidity, chemicals or improper storage
can shorten their life.
Replace the cushion plates as follows;
1. Put the compactor on stable, flat surface.
2. Support properly the mounting frame using blocks or hoist so as to release weight on the cushion plates.
3. Loosen all bolts prior to removing the bolts.
4. Remove the bolts, nuts and cushion plates.
5. Remove any dirt, rust or scale on the contact surfaces of the frames and cushion plates.
6. Position new cushion plates and reinstall the bolts and nuts.
7. Follow the bolt tightening instruction described before.
If multiple cushion plates are to be replaced except that some of cushion plates damaged by special cause in
short time, it is recommended to completely replace a set of cushion plates at a time.
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