Calculating shim and installing in rear axle housing - AR35.31-P-0550-13C

Use data sheet. 

Data sheet, Adjusting rear axle gear set: Order No. 6516 7422 00 D 

Fig 1: Identifying Dial Indicator Holder (363 589 02 21 00)

Fig 2: Identifying Measuring Plate (601 589 00 23 00)

Fig 3: Identifying Measuring Device (124 589 14 21 00)

Fig 4: Identifying Measuring Device (126 589 00 21 00)

Fig 5: Identifying Dial Indicator (000 589 38 19 00)

1. Clamp commercially available dia gauge in gauge stand and mount on measuring plate.
2. Adjust the dial indicator on the measuring member (051b) 124 589 14 21 00 part 01 under approx. 3 mm preload to "0", thus the measuring member height "B1" is adjusted.
   Fig 6: Identifying Member Height

   
3. Place tapered roller bearing outer race (46b) onto the tapered roller bearing inner race of the drive pinion (47), and position magnetic disk (052c) 126 589 00 21 00 Part 16.
4. Insert the drive pinion (47) into the measuring plate and measure the drive pinion height with tapered roller bearing and magnetic disk (052c).

Enter number 1 in the data sheet 

5. Read off the difference "B" between the measuring member height "B1" and the drive pinion height using the magnetic disk (052c) and enter in the data sheet under digit 1 (e.g. 1.30 mm).
   Fig 7: Identifying Difference Between The Measuring Member Height And The Drive Pinion Height

   

number 2 in the data sheet 

6. Read off the basic deviation "a" of the drive pinion at the end face (+ or -) and enter in the data sheet under digit 2 (z. B. +0.27).

Calculate interim sum in the data sheet 

7. Add (+) or subtract (-) values from digit 1 and 2, depending on the (+) or (-) prefix of the value on the drive pinion.
   Fig 8: Identifying Drive Pinion

   
8. Insert the measuring member (051b)part 01 of the measuring device 124 589 14 21 00 into the rear axle housing.
9. Bolt on the measuring member (051b) with fixing piece 124 589 14 21 00 part 02 and hexagon bolt.
   Fig 9: Identifying Measuring Member

   
10. Insert dial indicator (052a) with measuring pin into the measuring device (052) 126 589 00 21 00

    The measuring pin for the dial indicator (052a) is screwed into the adjusting piece (052b) 126 589 00 21 00 part 10

11. Press the adjusting piece (052b) 126 589 00 21 00 part 10 against the measuring device (052) and adjust dial indicator (052a)to "0" under 2 mm preload. Tighten the clamp screw, in the process check the "0" position of the dial indicator (052a) and adjust if necessary.
    Fig 10: Identifying Measuring Device , Dial Indicator And Adjusting Piece

    
12. Insert the measuring device (052) through the left bore in the rear axle housing.

    When inserting the measuring device (052) in the rear axle housing, ensure that the measuring pin of the dial gage is not damaged in the bore.

    Fig 11: Measuring Device Inserted Through The Left Bore In The rear axle Housing

    

Enter number 3 in the measurement sheet 

13. Measure the difference "A1" between the adjusted gauge dimension and end face of measuring member and enter in the data sheet under digit 3 in the positive (+) or negative direction (-) (e.g. - 0.15 mm measured and thus in negative direction).

    The specification of positive (+)or negative (-) direction is related to the direction of rotation of the dial gage pointer. The counterclockwise direction of rotation means negative direction and clockwise means positive direction.

Calculate the thickness of the shim "S" in the data sheet 

14. Add (+) or subtract (-) interim sum of the values from number 1 and number 2 as well as the value from number 3. The calculated value equals the thickness of the shim.
    Fig 12: Calculating The Thickness Of The Shim In The Data Sheet

    
    EXAMPLE:
    
    

    1.	Measure difference between measuring body height "B1"  and height of drive pinion with magnetic disk "B"		=		1,30
    2.	Read off basic deviation "a"  on drive pinion		= =	+ -	0,27
    	Intermediate total		=		1,57
    3.	Measure difference "A1 "  between set gauge dimension and front face of measuring body	Negative direction	=	+	0.15
    		Positive direction	=	-
    	Thickness of shim "S"		=		1,72

15. Take measuring device (052) out of the rear axle housing. Detach measuring member (051b).
16. Insert the shim with the calculated shim thickness "S" into the rear axle housing.

    Only hardened shims may be used. They are available in various thicknesses (see parts list). If necessary, grind down the shim accordingly.

    Fig 13: Identifying Measuring Device