Kval 990-HQ, Service Manual

Page: 76 / 112

Replacing Tooling in the Back Section
3-38
990-HQ Service Manual
Changing the Bore Drill
Caution:
Turn off all power to the machine. Follow proper lockout/tagout procedures
as detailed in the safety section of Chapter 1 of this manual.
1.
Remove Dust Collection Guard
2.
Use the shaft wrench and collet
wrench to remove the bit on the
pre-drill or router assemblies. See
photo.
When loosening the collet, it may
tighten up, crack again and con-
tinue.
3.
Inspect and clean collet assembly.
4.
Insert the new bit into the assem-
bly.
5.
Before tightening the collet assembly, adjust the bit depth. Bottom out the bit and
pull the bit up about 1.4''.
6.
Lightly tighten and torque to correct value. For torque values, see “Collet Torque
Values” on page 3-40.
Note:
Make sure the arbor is not bottomed out in the back of the motor. If it is, the
arbor will not tighten and will damage the collet or other machine parts.
Note:
The figure shows the cover off for training purposes.
Collet Wrench (PN:
15-00-ER32)
Shaft Wrench (1-5/8 '')
(PN: WRENCH026)