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< 8 > Assembling drill chuck See Fig. 8.
1. Firmly hold No.1R139 "Drill chuck extractor" with vise. And lock spindle with the drill chuck extractor.
2. Hold No.1R298 "Hex socket" with the jaws of drill chuck firmly and turn the hex socket with No.1R223 "Torque
wrench" clock wise.
<Note> Pre-setting the fastening torque for torque wrench : 49 N.m - 58.8 N.m
3. Fasten flat head screw M6 x 22 by turning it anti-clockwise.
No.1R298 Hex socket
No.1R223
Torque wrench
No.1R224 Ratchet head
1R139 Drill chuck extractor
Flat head
screw M6 x 22
Fig. 8
