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Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -1. Drill chuck
DISASSEMBLING
Note: When Gear assembly is replaced with a new one, separate Drill chuck from
Gear assembly in advance. When the repair is independent of Gear assembly,
it is not necessary to separate Drill chuck from Gear assembly.
(1) Remove four 4x18 Tapping screws, and then separate Gear assembly from
Housing set. (Fig. 1)
(2) Remove M6x22 (-) Flat head screw by turning it clockwise with Slotted
screwdriver.
Note: Use Impact driver to unscrew M6x22 (-) Flat head screw if it cannot be
removed manually. (Fig. 2)
(3) Engage 1R404-C with Gear teeth in Gear assembly. (Fig. 2)
(4) Fit two Pins 4 of 1R404-A into the holes of Gear assembly. (Fig. 3)
Secure Gear assembly to 1R404-A by tightening two 922127-5. (Fig. 3)
Be careful about each direction. (Figs. 3 and 4
)
(5) Assemble 1R404-B to 1R404-A so that the lever portion of Gear assembly can
be pushed toward 1st gear position. (Fig. 5)
Note: Face the flat surface of the shaft of
1R404-C to the threaded hole in
1R404-B, and pass the shaft through
the hole of 1R404-B. (Fig. 6)
It is not required to lubricate, because this product has gear mechanism of factory assembled.
Code No. Description Use for
1R298 Hex bar 10 with square socket removing Drill chuck
1R404 Drill chuck removing tool removing Drill chuck without disassembling Gear assembly
1R404-A Frame assembly
1R404-B Frame support
1R404-C
921477-5
Pinion gear complete
the components of Drill chuck removing tool (1R404)
1R291 Retaining ring S and R pliers removing Retaining ring (INT) R-15
1R264 Torque wrench removing Drill chuck
1R359 Chuck removing tool
removing Drill chuck (If it is impossible to remove Drill chuck by the steps
mentioned here)
M8x55 Hex bolt
922127-5 M4x16 Hex socket head bolt
---
Hex wrench 10
removing Drill chuck
[2] LUBRICATION
[1] NECESSARY REPAIRING TOOLS
CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”.
P 2/ 11
Fig. 2
Fig. 1
Fig. 5
Fig. 3
Fig. 4
M6x22 (-) flat head screw
Drill chuck
Gear assembly
Lever portion of Gear assembly
Lever portion of
Gear assembly
1R404-C
Pin 4 (2 pcs.) of
1R404-A
1R404-A
Wide side
Narrow side
1R404-B
1R404-A
921477-5 (2 pcs.)
1R404
1R404
922127-5
(2 pcs.)
Shaft of
1R404-C
Face the flat surface to
M5x10 Thumb screw.
M5x10 Thumb screw
of 1R404-B
Fig. 6
4x18 Tapping
screw (4 pcs.)