Kval 990-H, Service Manual

Page: 70 / 104

Replacing Tooling in the Back Section
3-31
KVAL 990-H Service Manual
Changing the Bolt 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.
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 continue.
2.
Inspect and clean collet assembly.
3.
Insert the new bit into the assembly.
4.
Before tightening the collet assembly, adjust
the bit depth. Bottom out the bit and pull the bit up about 1.4''.
5.
Lightly tighten and torque to correct value. For torque values, Collet Torque Values
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.
Collet Wrench
(PN: 15-00-ER32)
Shaft Wrench 1-5/8 ''
(PN: WRENCH026)