Which engines can the electronic throttle/speed control kit be fitted to?
The GS740 and GS740-3P are fitted to diesel and petrol engines whose throttle butterfly or fuel pump lever is driven mechanically by a cable or a lever. The condition is that the lever must be accessible from outside and able to move freely. The supply is 12V or 24V DC. On engines with an electronic throttle pedal (drive-by-wire) there is no mechanical point driving a lever, so these kits are not suitable.
The decisive criterion is not the make of the engine but whether the throttle control is mechanical. If the engine has a throttle lever pushed by hand or a joint to which a cable is attached, the kit works in parallel with it: the cable-pull servo drives the position of the lever on your behalf.
- Suitable: diesel and petrol engines with a mechanical throttle lever, such as tractors, irrigation/water pump engines, generators, construction machines and drilling rigs.
- Condition: the lever must move freely and the joint must not bind; a binding lever is not fixed by electronics either.
- Not suitable: fully electronic-throttle engines where the ECU drives the butterfly. There, the intervention is made in the engine's own signal chain.
The installation requires no dismantling; the original throttle lever stays in place and can be used by hand when needed. Remember that the kit does not replace the engine's mechanical governor: the governor stays on the engine, the kit only determines the position of the throttle lever. Likewise, overspeed protection, emergency stop and oil pressure/temperature protection must be present in the engine's own system and must not be expected from the kit. The GS740 is used for a single engine and the GS740-3P for three independent engines; both carry a 36-month warranty.
Full topic: Electronic speed and throttle control on a diesel engine