Question about Chevrolet Chevy
YOU HAVE TO REMOVE UNIT FROM CAR.REMOVE THE CONTROL VALVE ASSEMBLY AND THE ACTUATING LEVER.REMOVE THE PITMAN ARM SHAFT ASSEMBLY.REMOVE THE CAP SCREWS HOLDING THE UPPER END COVER TO THE HOUSING AND REMOVE THE END COVER.USE A SMALL PUNCH OR SCREWDRIVER TO REMOVE THE OIL SEAL FROM THE COVER BE CAREFUL OF THE NEEDLE BEARING.NOTE THAT IDENTIFICATION NUMBER OF THE BEARING IS INSTALLED TO THE OUTSIDE OF THE COVER.PULL THE RACK PISTON BALL NUT AND THE WORM ASSEMBLY FROM THE HOUSING.REMOVE THE PISTON RINGS FROM THE PISTON REMOVE THE BALL NUT RETAINING SCREW. TURN THE RETAINING SCREW HOLE DOWN SO THAT THE BALLS AND THEIR GUIDE DO NOT DROP OUT AND SLIDE THE BALL NUT AND WORM ASSEMBLY OUT OF THE RACK PISTON.REMOVE THE BALL GUIDE FROM THE NUT AND TURN THE HOLES DOWN.THEN TURN THE WORM BACK AND FORTH UNTIL ALL THE BALLS HAVE BEEN CAUGHT ON A CLEAN CLOTH.THERE ARE 23 BALLS.THEY HAVE A DEFINITE SIZE AND MUST BE REPLACED AS A SET.THEIR SIZE IS STAMPED ON THE END OF THE BALL NUT.REMOVE THE BALL NUT AND ADAPTER FROM THE WORM.REMOVE THE RETAINING RING WASHER AND SEAL.FROM THE NUT SIDE OF THE ADAPTER.CHECK OVER THE BALL RETURN GUIDES AND CLIPS THE RACK PISTON THE BALL NUT AND THE WORM.THE WORM AND BALL NUT ARE A MATCHED ASSEMBLY IF ONE IS DAMAGED BOTH MUST BE REPLACED WITH A NEW SET.DO NOT DISTURB THE END PLUG IN THE RACK PISTON UNLESS IT IS LOOSE.IT CAN BE DRIVEN OUT FROM THE INSIDE OF THE RACK PISTON.STAKE THE NEW ONE IN PLACE AT FOUR POINTS.THE END PLUG IN THE HOUSING IS DRIVEN TO THE OUTSIDE BUT IS INSTALLED FROM THE INSIDE.IT SHOULD ALSO BE STAKED AT FOUR POINTS.
Posted on May 04, 2010
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Posted on Jan 02, 2017
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