Speed Control Systems - Automatic: Adjustments: Regulator
NOTE:
No adjustments should be made until following items have been checked: 1) Servo adjustment correct. 2) All hoses in good condition, properly attached, not leaking, pinched or kinked. 3) Electric and vacuum release switches properly adjusted.
If cruising speed is lower than engagement speed, loosen orifice tube lock nut and turn tube outward. If cruising speed is higher than engagement speed, turn orifice tube inward. Each 1/4 turn will alter engagement cruising speed difference by one MPH. Tighten lock nut after adjustment and check system operation at 60 MPH.