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FOLLOWING INSPECTION IS CARRIED OUT IN CHAIN DRIVE :-

1. MAKE GENERAL INSPECTION FOR LOOSE SCREWS AND BOLTS.
2. INSPECT FOR DAMAGE IN L.O PIPES AND NOZZLES. 
3. CHECK NOZZLE FOR DEFORMATION AND BLOCKAGE.
4. EXAMINE THE RUBBER TRACK OF THE GUIDEWAY FOR CRACKS OR OTHER DAMAGE.
5. CHECK THE TEETH OF THE CHAIN WHEELS FOR ABNORMAL WEAR. IF FOUND THEN CHECK THE MEASUREMENT BY PUTTING A MEASURING SCALE ON THE CHAIN TEETH AS SHOWN IN THE FIGURE AND MEASURE THE GAP. COMPARE IT WITH READING IN MANUAL. 
6.  CHECK FOR CRACKS ON DEFECTIVE ROLLER AND SIDE PLATES.
7. CHECK THAT THE CHAIN ROLLERS CAN RUN FREELY AND THAT THE CHAIN LINKS CAN FREELY MOVE ON THE PIN AND BUSHING.
8. CHECK CHAIR WEAR BY MEASURING LENGTH OF 10 CHAIN LINKS AND COMPARE IT WITH READING IN MANUAL.