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P 4/10
Repair
[3] DISASSEMBLY/ASSEMBLY
[3]-1. Drill chuck (cont.)
(3) Tighten Drill chuck. (Fig. 7)
ASSEMBLING
DISASSEMBLING
Hex wrench 10
Fig. 7
Fig. 8
M6x22 Flat head screw
4. Open Keyless drill chuck fully,
then drive M6x22 Flat head screw
by turning counterclockwise*
with Impact driver.
[3]-2. Gear assembly and Motor section
Rear cover
1. Unscrew two 3x16 Tapping screws,
then remove Rear cover.
2. Pull Carbon brushes in the direction of the arrow
after shifting the end of each Torsion spring from
the top of Carbon brushes.
Carbon brushes
(1) First, remove Drill chuck. (Figs. 1, 2, 3, 4)
(2) Then remove Rear cover and disconnect Carbon brushes from Armature’s Commutator
before dismantling Housing set. (Fig. 8)
Counterclockwise
recoil force
of Machine
*Note: The rotational direction is viewed from operator
1. Grip Hex wrench 10 with Drill chuck and hold Machine.
Important:
Be sure to hold the grip of Machine tightly with sufficient
clockwise* force against counterclockwise* recoil force
of Machine.
2. Pull Switch trigger slowly to turn Spindle clockwise*.
3. Drill chuck is tightened and consequently Spindle is locked.
Clockwise* force
to be applied by
operator
Shift the end of each
Torsion spring to the
concave portion of
Brush holder.
Note:
Apply adhesive (ThreeBond 1321B/
1342 or Locktite 242 to threaded
portion) when re-using removed
M6x22 Flat head screw.