MAINTENANCE
Part No.: 4417340 Revision 1 Service Manual 255
954 SmartServo FlexLine
9 MAINTENANCE
9.1 Preventive maintenance
There are several tests available to check whether maintenance is
needed:
• Check bearings
o A short test that checks:
ď‚§ the state of the bearings at one position on the
drum
• Measure displacer weight
o A short test that checks:
ď‚§ the displacer weight (force transducer)
• Balance test
o A more elaborate test that checks:
ď‚§ the state of the bearings at several drum
positions
ď‚§ the unbalance of the drum
ď‚§ the displacer weight (force transducer)
• Run-down test
o A more elaborate test that checks:
ď‚§ the state of the bearings over a range
ď‚§ obstructions over a range
• Repeatability test