STUFFING BOX

STUFFING BOX

fig.:-stuffing box

FUNCTION

•                   TO PREVENT PISTON ROD TAKING OIL FROM CRANKCASE.
•                  COUNTERACT THE LEAKING OUT OF SCAVENGE AIR

              

LOCATION

•               AT THE BOTTOM OF SCAVENGE AIR BOXES   

               

          

HOW TO CHECK DURING ENGINE RUNNING

•                 BY WATCHING THE OUTLET FROM TEST COCK ON MANOUVERING    PLATFORM.
•                 LEAKAGE OF AIR INDICATES THAT SEALING RINGS ARE DEFECTED.
•                 EXCESSIVE OIL OUTLET MEANS THAT SCRAPPER RING NEED OVERHAUL.

            

CHECK POINTS DURING OVERHAUL

•               CHECK CLEARANCE OF RINGS (VERTICAL, GAP)
•               CHECK SPIRAL SPRING TENSION
•               ALL DRAIN HOLES CLEANED
•               CHECK THE FITTING BOLT. RENEW LOCKING WASHER, RENEW ‘O’ RING.

overhauling of stuffing box