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Temperature Control Dial

NOTE: Tester J-22368 must be used for this adjustment. Connect Tester to amplifier as outlined in instructions on back of Tester  . Follow step 5A of instructions. Set manual control on tester to 171 (except Toronado). 150 (Toronado). Insert Tool J-21530 or a 6" steel scale to left of temperature dial (see Fig 1).
Fig 1: Temperature Control Dial Adjustment
G09310857Courtesy of GENERAL MOTORS COMPANY
CAUTION: Tool must engage teeth on side of temperature: dial  . Hold temperature dial at 75° mark, rotate tool or scale until voltmeter on tester reads 6.5 volts.