P 4/10
Repair
[3]DISASSEMBLY/ASSEMBLY
[3]-1. Drill chuck (cont.)
ASSEMBLING
(3) Tighten Drill chuck. (Fig. 7)
Fig. 7
*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.
4.Open Keyless drill chuck fully, then drive M6x22 Flat head screw by turning counterclockwise* with Impact driver.
| Counterclockwise |
| recoil force |
Clockwise* force | of Machine |
to be applied by |
|
operator |
|
Hex wrench 10
M6x22 Flat head screw
Note:
Apply adhesive (ThreeBond 1321B/ 1342 or Locktite 242 to threaded portion) when
[3]-2. Gear assembly and Motor section
DISASSEMBLING
(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)
Fig. 8
1.Unscrew two 3x16 Tapping screws, then remove Rear cover.
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
Shift the end of each Torsion spring to the concave portion of Brush holder.
