Measuring steering knuckle - AR40.30-P-0451A

MODEL 129 

Fig 1: Locating Center Pin

Fig 2: Measuring Steering Knuckle

Fig 3: Identifying Center Pin Dimension

	Removing, installing
1	Remove, install steering knuckle	Check bearing seats of tapered roller bearings and contact surface of radial seal ring for wear and tear.	ra33001240400x
2	Remove centering pin (5c) from steering knuckle (5), install.
	Measuring
3	Support steering knuckle pins between the tips of a lathe and check for lateral runout by turning slowly.		*WH58.30-Z-1008-12A
			Fig 4 *BE40.30-P-1001-01B
4	Check mounting bore of the steering knuckle for distortion using a shop-made measuring pin (016). To do this, clamp the steering knuckle at the inner bearing seat of the tapered roller bearing (arrows) in a three-jaw chuck.	Test values  Determine the difference dimension (a) between the bearing surface and the center of the measuring pin (016). The measuring pin must seat flush in the mounting bore of the steering knuckle.	*BE40.30-P-1002-01B

TEST VALUES - STEERING KNUCKLE

Number	Designation		Model 129
BE40.30-P-1001-01B	Permitted lateral runout at steering knuckle	mm	0.05
BE40.30-P-1002-01B	Reference dimension "a" of bearing surface of bearing inner race to centering bore of measuring pin	mm	12.5±0.5
		Refer to illustration	AR40.30-P-0451A

Fig 4: Identifying Gauge Stand (363 589 02 21 00)

COMMERCIALLY AVAILABLE TOOLS

Number	Designation
WH58.30-Z-1008-12A	Dial indicator