Adjustment Procedure
NOTE:
The following procedure may be performed using KM Band Adjusting Tool Kit available from ZOOM Technology.
- Ensure case area around servo cover is clean. Remove servo cover snap ring and servo cover. Select the correct Spanner Socket Support Guide to fit the servo bore from the 4 sizes available. SeeFig 1 .
- Insert the Servo Piston Spanner Socket into the counterbored side of the Spanner Socket Support Guide. Insert these components into the servo bore. Slowly by hand, rotate the Servo Piston Spanner Socket until the lugs engage the cutouts on the servo piston. The tool is fully seated when the snap ring groove is completely exposed.
- Install the snap ring in the exposed groove. If necessary, rotate the Servo Piston Spanner Socket to allow ease of installation of a 1 1/2" wrench to the socket. This should be done prior to loosening the servo pin lock nut.
- Insert the Servo Pin Lock Nut Socket into the Servo Piston Spanner Socket. Turn the socket by hand until it has engaged the lock nut. Insert the Servo Pin Adjusting Socket into the Servo Pin Lock Nut Socket and rotate by hand until it engages the servo pin. See Fig 2 .
- Using a 1 1/2" wrench or adjustable wrench, hold the Servo Piston Spanner Socket stationary.CAUTION: DO NOT use pliers or a pipe wrench to hold the Servo Piston Spanner Socket stationary. This may cause injury to the user or damage to the tool.
- Using a 1 1/16" wrench, on the Servo Pin Lock Nut Socket, loosen the servo pin lock nut by turning it counter clockwise. Fig 3 . With one hand, push firmly inward on the Servo Pin Adjusting Socket. Using 2 fingers, turn the Servo Pin Lock Nut Socket counter clockwise until it contacts the bottom of the Servo Pin Adjusting Socket.
- Using an INCH Lb. torque wrench and a shallow 1/2" 6-point socket, torque the Servo Pin Adjusting Socket to 86 INCH Lbs. Loosen the Servo Pin Adjusting Socket 2 or 3 turns and repeat the tightening procedure to 86 INCH Lbs. Loosen again and apply a final torque of 43 INCH Lbs. to the Servo Pin Adjusting Socket. See Fig 4 .
- Using a 1/2" wrench, loosen the Servo Pin Adjusting Socket 2-2 1/4 complete turns. Hold the Servo Pin Adjusting Socket stationary and rotate the Servo Pin Lock Nut Socket clockwise until the servo pin lock nut firmly contacts the servo piston. Remove the Servo Pin Adjusting Socket.
- Using a 1 1/2" wrench, hold the Servo Pin Spanner Socket stationary. Use a 1 1/16" wrench to tighten the servo lock pin nut with the Servo Pin Lock Nut Socket. Tighten the nut to approximately 18 ft. lbs. See Fig 3 .
- Remove the snap ring and all remaining band adjusting tool components. Install the servo cover and snap ring. Ensure the sharp edge of the snap ring faces outward.