APPENDIX A. - Continued
Page 6
Test blocks for the Page pump energy metering calibration were installed.
A requisition was made for spare parts for General Electric AR-A1 breakers.
Some spare bushings were identified and tagged and WAPA was informed about
bushings in the warehouse that are for equipment in the switchyard.
bushings in the warehouse that are for equipment in the switchyard.
Work continued on bringing electrical drawings up-to-date.
Plans were made to install an alarm switch in the river outlet vault near
the machine shop to warn of any leaks there.
the machine shop to warn of any leaks there.
Engineering - Mechanical
Unit #1 Seal Rings - The seal ring inserts have been replaced by 0.5 inch
weld build-up. The seal ring inserts installed by fasteners in 1984
cracked through the bolt holes. (See Mechanical Engineer's activities
reports for January and February 1988.) The finished seal rings by weld
build-up basically look like the inserts except there are no fasteners
involved and the material is AMPCO Weld Rod #46 which is nickle-aluminum-
bronze.
weld build-up. The seal ring inserts installed by fasteners in 1984
cracked through the bolt holes. (See Mechanical Engineer's activities
reports for January and February 1988.) The finished seal rings by weld
build-up basically look like the inserts except there are no fasteners
involved and the material is AMPCO Weld Rod #46 which is nickle-aluminum-
bronze.
Pistons for hydraulic brakes have been rechromed and assembled.
New Scan-Pac non-asbestos, non-metalic brake shoes have been specified and
will be used on Unit #1.
will be used on Unit #1.
New exciter fan has been specified and purchased for Unit #1.
Heat exchangers (transformer oil coolers) have been installed on all three
K1A transformers to solve transformer overheating problems.
K1A transformers to solve transformer overheating problems.
Weirs have been installed throughout the dam to replace broken and leaking
weirs.
weirs.
Tailbay access stairs specification and drawing have been prepared and
will go out for quote in April 1988.
will go out for quote in April 1988.
A new 150-ton crane hook has been installed on the northeast crane. Both 150-
ton crane hooks on the east side of powerplant have been replaced due to
cracks.
ton crane hooks on the east side of powerplant have been replaced due to
cracks.
New air conditioning for compressor and electrical areas have been
investigated and preliminary design data has been prepared.
investigated and preliminary design data has been prepared.
Maintenance Crews
Major work during March continued with the welding of Unit #1 seal ring
repair, much progress has been made, they have moved to the upper seal
ring and are continuing the welding process. Major work continues on the
modification of the visitor center projection room, both jobs are to be
completed by May 2, 1988.
repair, much progress has been made, they have moved to the upper seal
ring and are continuing the welding process. Major work continues on the
modification of the visitor center projection room, both jobs are to be
completed by May 2, 1988.
87 (FIST 1-3 12/89)