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R
epair
(1) Cautions in Disassembling
To replace the gear assembly, firstly disconnect the drill chuck. (If the housing only is disassembled, its no need to
disconnect the chuck.) Use care not to miss the compression spring 4 inside the speed change lever since it can
be easily jumped out when disassembling.
(2) Cautions in assembling
1.Assembling of the motor and gear assembly
*As the motor bracket is mounted on the gear assembly for
repair, turn the motor bracket counterclockwise (viewed from
the motor bracket side) to remove it from the gear assembly.
1) Assemble the motor bracket and the motor with screw.
2)
Turn the motor assembling parts shown in 1) in clockwise (viewed from the motor bracket side) to
assemble them on the gear assembly. Make fit the red mark on the motor edge with the flat face of the
gear assembly.
2.Assembling of the leaf spring
Assemble the leaf spring on the housing L as shown on the
figure 3.
3.Assembling of the speed change lever
1)
Set the two pieces of compression spring 4 in the speed change lever.
2)
Assemble the speed change lever assembly on the protrusion of the change lever as shown on the figure 4
while using care that the compression spring 4 may not jump over.
change lever
compression spring 4
Flat face
Gear assembly
Motor bracket
Fig. 2
Housing "L" inside
change lever
assembly
Fig. 4
6
Motor
7
Protrution of the change lever
change lever
compression spring
Fig. 1
Red mark
Rotating direction arrow mark
Leaf spring
Fig. 3
Gear assembly
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