P 6/ 12
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -2. Gear Assembly, Motor Section
ASSEMBLING
(5)Assemble Speed change lever assembly as drawn in Fig. 12.
Fig. 12
Pin on the lever of Gear assembly
Motor side 
rear Compression 
spring 4 
Motor side
front Compression spring 4
| 1. Apply the front Compression |
Drill chuck | spring 4 of Speed change lever |
assembly to the flat side | |
side | (without pin) of Gear assembly |
| for Speed change. |
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| 2. Push Speed change lever assembly |
| toward Motor side until it stops to |
Drill chuck | have space between pin of Gear |
assembly and rear Compression | |
side | spring 4. |
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Space between rear Compression spring 4 |
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| front Compression spring 4 | |||||||
and pin on the lever of Gear assembly |
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| compressed by the lever of | |||||||
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| Gear assembly. | |
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Motor side | Drill chuck | |
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Pin on the lever of Gear assembly fit to the coil of rear Compression spring 4
3.Fit the pin of Gear assembly to Spring’s coil with slowly returning Speed change lever assembly toward Drill chuck side.
4.Slide Speed change lever assembly to the either position 2(High speed mode) or
1 (Low speed mode).
(6)Assemble Motor section and Gear assembly as illustrated in Figs. 13 and 14.
Fig. 13
While aligning the notch of Yoke unit with projection of | If the Motor section does not fit to |
Housing L, mount Yoke unit together with Gear ass’y | Housing L, make sure that Yoke unit |
and Motor section to Housing L. | is correctly amounted to Armature. |
| See Fig. 10. |
Housing Set (L) |
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protrusion | Brush holder complete |
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Gear ass’y |
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notch | Yoke unit |