Kval 990-HQ, Service Manual

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Table of Contents
KVAL 990-HQ Service Manual
Ball Rail Bearing .................................................................................3-19
About Taper Bearings .........................................................................3-20
Tapered Bearing Housings .................................................................3-20
Ball Screw Nut ....................................................................................3-21
Ball Screw Drive Assembly .................................................................3-21
Pulley and Idler Shafts ........................................................................3-22
Lubrication Points on the 990-HQ ............................................ 3-23
Feed System Lube Points ...................................................................3-23
Carriage Head Lube Points ................................................................3-25
Back Section Lubrication Points .........................................................3-26
Servo Motor Drive Assembly Locations ................................... 3-28
Back Section Servo Motor Assembly ..................................................3-28
Front Section Servo Assemblies .........................................................3-28
Description of Air Input System ............................................... 3-30
Air Input with Lubrication ...................................................................3-30
Air Line Without Lubricator .................................................................3-31
Replacing Tooling in the Front Section .................................... 3-32
Carriage Tools .....................................................................................3-32
How to Access to Bit Assemblies .......................................................3-33
Remove and Replace the Router or Pre-Drill Bits ..............................3-33
Remove and Replace the Chisels ......................................................3-35
Remove and Replace the Screwdriver Bits ........................................3-35
Replacing Tooling in the Back Section ..................................... 3-37
Changing the Bore Drill .......................................................................3-38
Changing the Bolt Drill ........................................................................3-39
Collet Torque Values ................................................................ 3-40
Appendix: Conversion Chart .................................................... 3-42
Chapter 4
Trouble Shooting of the 990-HQ
About Motion Control ............................................................... 4-2
Basic Control Circuit .............................................................................4-2
Troubleshooting Basics ........................................................... 4-4
Before you Adjust .................................................................................4-4
Before you Adjust .................................................................................4-5
Analyze the Sub Systems .....................................................................4-5
About a Typical Contactor Control ........................................... 4-7
About Contactor Troubleshooting .........................................................4-8
About Typical VFD Motor Drive Control ................................... 4-9