Jeep CJ-3A Owner's Manual page 59

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To operate the vehicle WITH governor control pull the governor hand control out. The hand control has nine notched
positions. Pulling the control out to the first notch sets the controlled engine speed at approximately 1000 rpm and each
successive notch increases the speed 200rpm until 2600 rpm is set in the ninth notch. The hand control may be released by
turning the handle one-quarter turn in either direction.
When the engine is being operated under governor control (hand control out) the controlled engine speed may be exceeded at
any time by depressing the foot accelerator in the conventional manner to secure a greater carburetor throttle opening than that
determined by the governor hand control setting.
KING SEELEY GOVERNOR ADJUSTMENT.
First tune the engine to obtain smooth operation.
Mechanical adjustment of speed control is obtained by adjusting the length of the hand control cable with clevis No. 3, Fig.
34.
First check the carburetor bell crank to be sure the screw as shown in Fig. 35 is correctly located. Check the carburetor throttle
rod to make certain the throttle opens and closes fully. Disconnect the accelerator spring and eliminate any bind or stiffness in
the throttle connections and carburetor linkage. Free operation of the throttle is necessary to avoid surging of the governor
when the engine is placed under load. After checking, reconnect the accelerator spring.
Set the dash hand throttle in the fully open position and leave it there. All the adjustments are made with the throttle in this
position.
Adjust the length of the spring loaded governor-to-throttle link No. 12 to allow exact assembly between the short or lower
governor lever and the carburetor throttle lever without moving either lever and with the throttle fully open. The length of this
link after adjustment should be approximately 6" (.13 m.) between centers of the ball sockets. Tighten the adjustment lock nut
and install the link.
Engage the governor clutch by turning the control on the pulley hub until the driving pins engage the deeper recesses. Place
the governor hand control in the closed or "IN" position and check to be sure the hand throttle on the dash is fully out. Start
the engine and allow it to run until operating temperature is reached.
The governed engine speed is controlled by the position of the upper or long governor lever. Adjust the yoke No. 3 (Fig. 34)
on the hand control cable and attach it to the governor arm when the arm is positioned to give an engine speed of 1000 rpm. In
the absence of electrical tachometer equipment, the engine speed may be determined by the speedometer. Safely jack up the
rear wheels and be sure the front wheel drive is not engaged. When driving the rear wheels in high or direct transmission gear,
the speedometer will read 15 mph (24 Km./h.) at an engine speed of 1000 rpm.
In some cases it may be necessary to adjust the surge screw at the rear of the governor to eliminate surge. Should this be
necessary, loosen the lock nut and turn the slotted screw in until the engine stops surging when the governor hand control is
suddenly operated from low to high speeds, then tighten the lock nut. Use care in making this adjustment not to turn the screw
in too far or governor speed control will be lost.