Open Museum Archive

UAX13 C Rack
Object ID1679
Works No
Accession NoIF:2006:060
StatusOn Display
Category Telephone
Collection IDTelecommunications
Made ByGEC Telecommunications Ltd
Made InCoventry, England
DescriptionUAX 13 Exchange rack
LocationRadio Room
Conservation/ Maintenance History
General Maintenance

Work carried out by D. Williams.

1) Control cct faulty - This fault causes the Allotter magnet to be permanently operated followed by a warm paxolin smell - I had to jack-out the relay set to stop the problem as I could not determine if it was possible to remove it from service without the diagrams - no time to fix fault. I also reinstalled the Allotter
2) Linefinder 6 (C3) not stopping on vertical hunting - VMB wipers adjusted and bank cleaned
3) G/S 6 (F2) not stepping into bank - Wipers bent - wipers adjusted
4) Linefinder 5 (C2) not stopping on rotary hunting - rotary interrupters out of adjustment - adjusted & bank cleaned
5) G/Ss 1-4 (E1-4) busied out due to faults on either the G/S or associated L/F - no time to fix
6) F/S G5 busied out - Faulty
7) F/S G1 very occasionally it stepped OK but did not give ring tone or ring the phone - no time to fix but left in service (probably wipers or dirty bank again.

Comments -

As F/S G1 is the first choice final selector I suggest that you take it out of service every other week or month to reduce wear and to spread the load onto the other selectors. Move the link from TJ15-16 to TJ7-8 to busy it out.

C & FC Plus Maintenance

David Williams on site to install his C & FC replacement system and do general maintenance work on the exchanges

3 simulators installed on UAX13 relay strip along with 6 x 9V rechargeable batteries -18V PSUs left as backup
5 POA mechanisms slots and guides converted to current decimal currency POA700 re-wired to MDF and connected to C&FC
Armoured POA 705 in existing Phone Box re-wired to MDF and connected to C&FC
Second Phone Box re-wired to MDF and connected to C&FC ready for backboard and POA 705 install
Lock modified on second POA 705

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