User Manual

Page 5-34
200 BENCH PROCEDURES
INSPECTION
Visually inspect valve seat inserts for looseness,
cracks or other conditions that may result in
improper operation. Replace as necessary.
VALVE SEAT INSERT REMOVAL
Refer to Figure 5-41.
Valve seat extractor kit PT6391 and collet
PT6390-4 are used to remove inlet and exhaust
seat inserts.
Collet PT6390-4 is not included in basic kit
PT6391.
Figure 5-41 — Valve Seat Extractor Kit PT6391
200298a
1
2
3
4
5
6
7
8
9
1. Grinding wheels
2. T-handle and shaft assembly
3. Collet
4. Allen wrench
5. Lifting bridge
6. Grinder base
7. Grinder
8. Wrenches
9. Dressing stone
5-101.bk Page 34 Friday, March 17, 2006 11:05 AM