ADJUSTMENT OF TRANSMISSION


SPACER SELECTION FOR ADJUSTMENT OF MAINDRIVE GEAR BEARING AXIAL PLAY


<Measurement using Solder>
caution
  • If soft solder is not available, select the spacer in accordance with Plastigage method.
  • If the spacer appropriate for the standard value cannot be selected using soft solder, select the spacer in accordance with Plastigage method.

1.Place two pieces of solder measuring about 10 mm in length and 1.0 mm in diameter on the maindrive gear bearing as shown in the illustration.
2.Install the front bearing retainer and tighten the nuts to the specified torque of 12 ± 1 N·m.
3.Remove the front bearing retainer and remove the solder.
4.If the solders have not crushed, use thicker solders (1.6 mm diameter, about 10 mm long) and repeat steps 2 to 3.

5.Measure the thickness of the crushed solder with a micrometer and select a spacer that will provide the standard value.
Spacer thickness: (T1 - 0) to (T1 - 0.1)
T1: The crushed solder thickness mm
Standard value: 0 - 0.1 mm

<Measurement using Plastigage>

1.Put plastigage (about 10 mm long) in the illustrated positions of the maindrive gear bearing.
2.Install the adjusting spacer having the minimum thickness.
3.Install the front bearing retainer and tighten the nuts to the specified torque of 12 ± 1 N·m.
4.Remove the front bearing retainer and remove the plastigage.
5.If the Plastigages have not crushed, replace the spacer with a thicker one and repeat steps 3 to 4.

6.Measure the width of the crushed Plastigage at its widest part using a scale printed on the Plastigage package.
Spacer thickness: (T2 + T3 - 0) to (T2 + T3 - 0.1)
T2: The crushed plastigage thickness mm
T3: The spacer thickness used for measurement mm
Standard value: 0 - 0.1 mm