Doosan DX60R Shop Manual page 105

Abrasive Roller Wear
Pattern on races and rollers caused by fine abrasives.
Clean all parts and housings, check seals and bearings and
replace if leaking, rough or noisy.
Cracked Inner Race
Race cracked because of improper fit, cocking or poor bearing
seat.
Replace all parts and housings, check seals and bearings and
replace if leaking.
Smears
Smearing of metal because of slippage caused by poor fitting,
lubrication, overheating, overloads or handling damage.
Replace bearings, clean related parts and check for proper fit
and lubrication.
Replace shaft if damaged.
General Maintenance Procedures
Figure 13
Figure 14
Figure 15
SP000016
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