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Mounting of leaf spring
Mount leaf spring to housing L as shown in the figure 4. Coat grease to the leaf spring to prevent it from falling off at 
the time of assembly.

Mounting of speed change lever
Include two compression springs into speed change lever and assemble the lever to the projection on the gear assembly. 
See figure 5 for the direction of assembling.

Assembling of change ring

Mounting of gear assembly to the housing
When mounting a unit of gear assembly, DC motor, and so forth, mount speed change lever as shown in the figure 7.

(4)

(5)

(6)

(7)

Figure 4

Figure 5

Figure 6

Figure 7

Turn spring holder to the direction as shown in figure 6 a) 
and fasten it tightly.
 · Use change ring as a temporary tool.
 · When fastening it regularly, position will be about 8mm  
   from the side of the gear case B.

Mount change ring so that the drill mark should come 
right above (figure 6 b)). 
 · When the projections of gear B and change ring contact,
   turn change ring so that the drill mark will be the lower
   position as shown in the figure 6 c).

1)

 

2)

Inside of left
housing

 Insert both ends of leaf
spring into concave part.

Leaf spring

Grease

Speed change
lever 

Compression spring

Spring holder

Gear case B

Change ring

Projection of

gear case B

Projection of

change ring

Inside of left
housing

Rotating direction
of spring holder

Projection of change lever

Gear assembly

About 8mm

Projection of
gear case B Drill mark

Either position

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