1.0.1 This Guidance is applicable to installation and adjustment of thrust bearing and guide bearing of large and medium vertical-type hydraulic turbine generator units. Installation and adjustment of reversible and horizontal units and bearing having nontypical structure and special technical requirements may refer to this Guidance.
1.0.2 This Guidance provides technical measures for installation and adjustment of bearings stated in GB 8564-88 Specification for Installation of Hydraulic Turbine Generator Units.
Quality standard of bearing installation shall comply with the design drawings and the aforesaid requirements.
1.0.3 This Guidance was developed according to technical measures generally used during installation and adjustment of bearing with typical structure. Where bearing structure is changed, some technical measures specified herein may be changed.
1.0.4 Implementation of this Guidance shall not limit adoption of state-of-the-art techniques and processes approved by technical construction department.
1. General
2. Acceptance, Storage and Open-box Examination of Equipment
3. Scraping of Thrust bearing shoe
4. Cleaning, Test and Preassembly of Bearing Components
5. Installation of Main Components of Thrust Bearing
6. Adjustment of Thrust Bearing
7. Installation of Thrust Bearing High-pressure Oil Lifting Device
8. Installation of External Circulatory Cooling System of Thrust Bearing
9. Installation of Oil Bath Components and Oil Infusion
10. Grinding and Scraping of Guide Bearing Shoe, Inspection and Treatment before Installation
11. Installation and Adjustment of Guide Bearing
Annex A (Informative) Devices and Materials for Installation of Bearing
Annex B (Supplementary) Measurement Law of Horizontal Revolution of Thrust Runner
Annex C (Referential) Examples for Table Format Recording Thrust Bearing Force Adjustment
Annex D (Supplementary) Method for Determination of Adjustment Required by Each Column Bolt According to the Level of Thrust Runner
Annex E (Supplementary) Grinding and Scraping of Cylinder-type Shoe
Annex F (Supplementary) Determination of Clearance of Generator Guide Bearing with the Main Shaft at Any Position in Positioned Water Guide Bearing
Additional Explanation
