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Master Switch: Notes

Switch must be closed with 10" Hg. vacuum applied to switch vacuum actuator and remain closed until vacuum decreased to 3-4" Hg. Switch must be open with vacuum of I" Hg. Use test light to check continuity through switch.

VOLTAGE AT MOTOR TERMINAL

Motor Speed Volts
LOW HIGH & DEFOG
High (Hi) 7.7 (1) (2)
Medium High (M3) 7.3 10.5
Medium (M2) 6.7 9.1
Medium Low (Ml) 5.6 7.4
Low (Lo) 5.1 6.0
(1) Heater only.
(2) 12.5 (Heater), 13.5 (A/C).