On the 83-360A, power to operate the surge control valve is routed through the
PNEUMATIC POWER switch 1S8 to the 45 KW and 1000 AMP pins on the CURRENT LIMIT
SELECTOR switch. On serial numbers 1036 and higher, the surge control valve also opens at
the 30 KW setting of the CURRENT LIMIT SELECTOR switch S11. On the 83-360A the surge
control valve will not open if the PNEUMATIC POWER 1S8 is ON.
On the 83-360D, a jumper is installed on the PNEUMATIC POWER 1S8 allowing the
surge control valve L1H-2 to open even when the pneumatic system is on. The surge control
valve does not open at the 30 KW setting of the CURRENT LIMIT SELECTOR switch S11 on
4-33 TERMINAL BOARDS (TB) AND COMPONENTS.
Figure 4-10. Terminal Boards TB1 Components. (Page 4-184)
Figure to be revised to add an additional diode, CR6X, between the No. 16 terminal
screw on the anode and cathode boards. Add to legend: "15. DIODE 1N5061 (83-360D only)"
Section X. MAINTENANCE OF ELECTRICAL POWER GENERATION AND
Table 4-11. Electrical Power Generation and Control System
"83-360D" is to be added after "Ac/dc generator (G1)" in the first column. The following
will be added under that line:
Diagram Fig. Ref.
AC generator (G1)
Figure 4-36, item 5 4-39a
rectifier unit (TRU)
Figure 4-37, item 4 4-39a (sheet 3)
FO-2D, FO-5D, FO-6D(1)
Figure 4-36. Generator
and AC Output Current Transformers (Page 4-207)
Add to legend: "5. AC GENERATOR (83-360D only)".
a. DC Power Generation and Control. Add after 3K1 on line 7, "AC to DC transformer
rectifier unit (83-360D only),".
(1) Add: On the 83-360D, the only DC output of the generator is from the two permanent
magnet stator windings, which is rectified to provide power to the GCU.