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R
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[3] DISASSEMBLY/ASSEMBLY
[3]-2. Drill chuck
DISASSEMBLING
(1) Remove Drill chuck S-13 from the machine as drawn in Fig. 3
or Fig. 3A.
Fig. 3
1. Secure a hex wrench in Drill chuck firmly.
2. Hold 1R139 firmly in vise, then set the machine
to 1R139 by fitting the flat portion of Spindle
to the groove of 1R139.
3. Attach a pipe to a hex wrench, and then turn the pipe
counterclockwise to remove Drill chuck.
Note: Be careful not to remove the hex wrench from
the pipe and Drill chuck.
(2) In case of the damaged Drill chuck, use Wrench 43 (781024-2) to remove the damaged one as drawn in Fig. 3A.
Fig. 3A
1. Hold 1R139 firmly with vise, then set the machine
to 1R139 by fitting the flat portion of Spindle
to the groove of 1R139.
2. Set Wrench 43 (781024-2) to Drill chuck so that
the pin of Wrench 43 is inserted into the hole of
Drill chuck.
3. Turn Wrench 43 (781024-2) counterclockwise
to remove the damaged Drill chuck.
ASSEMBLING
Assemble Drill chuck as shown in Fig. 4.
Note: Set the fastening torque of 1R223 to 70N·m ~ 80N·m (714kgf·cm ~ 816kgf·cm) and turn 1R223 clockwise.
Fig. 4
1. Secure 1R298 in Drill chuck firmly.
2. Hold 1R139 firmly in vise, then set the machine
to 1R139 by fitting the flat portion of Spindle
to the groove of 1R139.
3. Attach 1R224 to 1R223, and then set them to 1R298.
4. Turn 1R223 clockwise to assemble Drill chuck to
Spindle.
Pipe
Damaged Drill chuck
Wrench 43
(781024-2)
1R139
1R223
P 3/ 8
1R139
Drill chuck S-13
Hex
wrench
Drill chuck S-13
1R298
1R224
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