Stanley Black & Decker GT18B02 User Manual

The Stanley programmable controller is an electronic 

engine governor that provides a means of controlling and 

limiting engine speed by adjusting the fuel control lever with 

a proportional actuator. 

The controller is factory preset and has no manual adjust-

ments. 

Please follow the checklist below to troubleshoot your Stan-

ley controller.

1. Check battery voltage for stability and correct value. The 

LED will turn on for one second when the controller 4500 is 

first powered up.

2. Check the actuator linkage for binding and backlash.

To determine whether a governor problem is being caused 

by the actuator or the control module, perform the following 

static check exactly in order shown.

A pair of jumper wires and a known good 12-volt battery is 

required.

 

1. Disconnect red and green wires from the control module 

to actuator.

2. Attach jumper wires from battery to RED and GREEN 

wires to actuator.

 a. Attach 12 volt + (positive) to RED wire.

 b. Attach 12 volt – (negative) to GREEN wire.

3. Actuator should move throttle lever to wide open position.

 a. If actuator does not move it is defective. (Replace).

 b. If actuator moves throttle to wide-open position, the 

module is defective. (Replace).

The Stanley controller is capable of identifying certain fault 

conditions and alerting the user to them. A flashing LED 

indicates the fault conditions. The current fault code list is 

shown on the following page. Please note the following:

1. When power is first applied to the controller, the LED will 

flash just once for one second to indicate that the LED is 

working.

2. If there are multiple faults, the LED will flash them all 

in sequence. Count the flash codes to determine the fault 

conditions or connect the Calibration Tool to observe the 

fault conditions. (Use the “Display Faults” option under the 

Monitor Menu.) 

3. If there are no faults, the LED will flash once at reset 

and from then on indicate the detection of engine speed. A 

continuous ON LED indicates that a valid engine speed is 

being sensed. 

4. The controller will attempt to shut down for some faults 

and will not permit starting after reset with faults 1, 5 and 8.

A flashing LED 

indicates the 

fault condition