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Excavator Ignition Switch – The Definitive FAQ Guide

An excavator ignition switch is a crucial part of the starting and operating of an excavator. Having one installed on your machine lets you start and stop it quickly while preventing accidents from occurring from faulty switches.

Please read below to learn more about an excavator ignition switch FAQ guide, including what they are, what their components are, and how to choose them.

1. What is an excavator ignition switch?

Excavator Ignition Switches are the innovative, simple solution for starting your machine. Excavator ignition switches are an essential part of the ignition system in any excavator and protect it by preventing accidental startup.

Excavator ignition switches help to control the flow of electrical current to your ignition system. The ignition switch makes the electric engine run in the “on” position and shut down when it is in the “off” position.

An excavator ignition switch is a switch that is mounted on the control panel of an excavator. Excavator ignition switches are usually hand-cranked by the operator after inserting a key to prime it.

There is a spring-loaded key that must be rotated 90 degrees to activate the switch.

2. From what is your excavator ignition switch made?

The excavator ignition switch is made of stainless steel, glass fibre reinforced plastic and brushed aluminum casing, brass terminals, and rubber insulating elements, made into a single unit through precise computer numerical control machining.

The appearance is graceful, and the solid joint part is unified, with solid performance and durable function.

A reliable ignition switch made of ceramics and spring steel ensures your safety and the operating efficiency of your equipment.

There are so many different types of excavation ignition switches in the market, and every switch is made of different materials. You can choose anyone depending on your needs and budget.

Suitable quality material switches last longer and play their role effectively.

3. How much does an excavator ignition switch cost?

The cost of an excavator ignition switch varies from model to model and depends on several variables. Some of the significant variables include:

• The material of your excavator ignition switch
• The design specifications of your excavator ignition switch
• Exceptional features associated with your excavator ignition switch
• Maintenance requirements and life associated with your excavator ignition switch
• If there is any warranty associated with your excavator ignition switch

In general, the cost of an excavator ignition switch with three months of warranty and two lines lies in the range of $10 to $100 per piece.

The price of an excavator ignition switch with four lines and three months of warranty lies in the range of $30 to $100 per piece.

You can choose any one depending on the compatibility of your excavator model.

4. What is the life associated with the excavator ignition switch?

The life of your excavator ignition switch varies and depends on several factors. Some of the main factors include:

• Do you follow maintenance requirements for your excavator ignition switch?
• Is it made up of high-quality materials
• Frequency of usage for your excavator ignition switch
• Durability level of your excavator ignition switch
• Can it withstand harsh environmental conditions?

In general, the life of your excavator ignition switch lies in the range of 3 to 5 years. If the frequency of usage of your excavator ignition switch is too much, then it may experience less life.

If you correctly follow the maintenance requirements of your excavator ignition switch, it will last longer compared to the switch for which no maintenance is carried out.

5. Does the excavator ignition switch have a connection to an electrical system?

Yes, the excavator ignition switch has a connection to the electrical system. It has terminals at its end that connect to the battery of the system through its terminals.

The switch plays its role as a medium to connect diesel engines and batteries to supply electrical energy.

When you want to switch on the excavator, you only need to turn the excavator switch. It allows the current through the battery to pass on to the engine to get started.

In case if your excavator ignition switch is not working correctly, you will be unable to provide a robust electrical connection between your engine through your battery.

6. What is the role of keys in an excavator ignition switch?

The Key in an excavator ignition switch is for ignition purposes. The keys prevent anyone from starting the engine without authorization.

A key has the three most essential functions in the starter switch of the excavator. Firstly, the keyhole is its starting position. When you insert the Key into it, the Key can move along with the switch lever.

Secondly, when no key is inserted into the switch, this is its idle position. There is no movement between the Key and the switch lever.

Finally, when you want to turn off the machine’s power supply, push down the switch lever against the force of springs and insert a key into the switch to lock it in this condition. The material of Key varies and depends on the quality of the switch.

7. What is the role of the critical rotor in the excavator ignition switch?

The key rotor is the critical part of the excavator ignition switch, which transfers the short circuit current to coil winding. It is used to turn on or off the circuit.

The key rotor has three parts, the shaft part, the tooth part and the bottom-end cap. While hands rotate the tooth part, the power will enter the ignition coil to make sure all the engine turns over.

The key rotor is usually made up of using the aluminum alloy, iron alloy or steel material for its body. The colour of it is silver or black if it is made of copper material.

It is a mechanical device that uses electromagnetic induction to generate a high voltage electric pulse to start the engine, effectively bypassing the need for a distributor.

The rotor is mounted on a small metal shaft that is moved by a gear, cam or lever from the ignition switch into physical contact with a set of contacts arranged around the engine’s flywheel.

8. What is the role of the cam in the excavator ignition switch?

Cam has a significant role in the excavator ignition switch. The Excavator ignition switch is the essential part of the whole system, no matter which brand or model of excavator you own, because it’s the core part of the reliable operation of your machine.

It controls the timing of the on-off action, i.e., when to start, how long to work, stop, start again etc.

The cam is used to align the shutter bars and initiate their operation; it drives the central machinery of the switch.

An Excavator ignition switch is a kind of switch that can resist high pressure. Its role is to make the cam make electrical contact; due to the cam having different positions, it can make different electrical contacts according to the different positions of the switch.

9. What is the role of latch in the excavator ignition switch?

The latch is an essential part of the excavator ignition switch. The primary function of the latch is to connect the handle to the Key. The handle will be pulled while the latch connects between the handle and Key. It makes you able to change the position of a switch.

The latch is responsible for ignition switch on off mechanism, or isolating the transmission of electrical energy, and isolating the contact between the pin and installation surface of the ignition switch.

The latch of the excavator ignition switch has two functions: fixing or locking the starter motor and preventing the working engine from freeloading, and protecting the keyhole.

Without a latch, you cannot make your excavator ignition switch function properly, so make sure it is in good working condition at all times.

10. What is the role of the body in the excavator ignition switch?

The body of the excavator ignition switch is generally composed of welded steel plate or cast iron.

And also, it can be made up of other kinds of materials through casting or forging to provide sufficient strength and mechanical properties to withstand the impact load, vibration, shock, fatigue loading.

The body of the excavator ignition switch is significant and should be handled with care.

It not only prevents dust and water from entering but also keeps the insides clean.

The switch’s body mainly houses the contacts and terminals that carry the current from the ignition key to other engine parts.

11. What is the role of latch spring in the excavator ignition switch?

The latch spring in your excavator ignition switch is the critical component that plays an essential role.

An excavator ignition switch mount latch spring is used for holding the excavator ignition switch. The job of this part is to fix the excavator ignition switch firmly on the place; at the same time, it also plays a role in electrically grounding the arm.

This part has high mechanical strength because it should withstand a large impact force. The latching position of the latch spring should be accurate so that after continuously operating for many years, it should work well.

Its overall structure is simple, but its function is relatively complex because it should have a good spring effect and an excellent self-locking effect during operation.

12. What is the role of the bushing in the excavator ignition switch?

The bushing in the excavator ignition switch avoids extraneous leak current in the wire when the arc occurs.

And this function is after the insulation layer of the wire, and there is no change when conducting. Electrical characteristics and physical properties of the bushing in the excavator ignition switch can normally work in a wide temperature range:

• Low temperature -40 ℃- + 80 ℃; high temperature: 150 ℃-250 ℃;
• Aqueous alkali resistant performance: 10% NaCl solution no more than 24 hours neutralization activity;
• Water resistance performance.

The bushing should be made of material with high precision to withstand strong impact force. And it should have high hardness to avoid being worn out by the other parts.

There are mainly three methods for making bushing—machining, casting and sintering. According to different requirements of the excavator ignition switch, the relevant parts are selected for the bushing.

13. What is the role of the switch in the excavator ignition switch?

The role of the switch in the excavator ignition switch is significant. The switch, which is the central part controls the switching of the high voltage power supply that comes into the system, allowing current to flow freely throughout the circuit, working together with ECU to control the output of the ignition system.

An Excavator ignition switch is utilized to connect the battery and the starter motor. It has been widely applied to tractors and other construction equipment. There are several types of excavator ignition switches (isolation type and hot and cold type).

The construction of the switch is electric, which can achieve to control the excavator’s ignition. This part consists of two parts: The main body and Key.

14. What is the role of the ignition lock cylinder in the excavator ignition switch?

Excavator ignition switch contains a lock cylinder that keeps the Key in the switch when it is on and allows removal of Key when it is off. It locks or unlocks the switch following the position of the ignition key and prevents accidental startup.

The components within the excavator ignition switch work together, supporting each other to provide you with a complete solution.

If the cylinder is damaged, the lever will not lock, which will cause digging abnormal machine work. The cylinder should be strictly checked before installation.

While excavation ignition lock cylinder is the one that keeps your keys locked in it and prevents it from pop-out during excavation.

15. What is the role of terminals in the excavator ignition switch?

Excavator ignition switch has a complex structure, and terminals have an essential role in it.

The terminals are the connections between the switches, ignition coils and generator. The excavator is designed with a generator field open relay to block no-load current flow to prevent extraneous spark. And the relay coil is surrounded by oil resistant barrel, which prevents external circuits of low or no resistance from sending unwanted signals through it.

The role of terminals in the excavator ignition switch is connecting with ground wire, power wire and coil with the rest machine. The materials of the terminals are brass, and the thickness of the terminal is 6mm.

The terminals of the ignition switch of the excavator connected with the control circuit and battery and played a guide and mechanical role for the connection of its circuit.

16. What are the issues associated with an excavator ignition switch?

An excavator ignition switch is a crucial component of an excavator, so it’s essential to understand the various issues associated with this piece of machinery.

While it may seem simple, there are several things you need to keep in mind. Always be mindful of the voltage of your unit and respect that overloading of the ignition switch can damage it.

The main issue with an excavator ignition switch is the failure of the switch to make contact or failure of the switch to remain in the “on” position. In extreme cases, this could cause you to get stranded with a piece of expensive equipment that you cannot use.

Excavator ignition switch problems occur when the key sticks and prevents movement of the poppet valve to start or run an engine. The lack of poppet valve movement can be attributed to several issues: hardened dirt and minerals blocking the keyway, seized and broken parts, and simple operator error.

17. What are the reasons for the failure of an excavator ignition switch?

There are several reasons for the failure of your excavator ignition switch. Some of the main reasons are as follows:

The most common failures with the ignition switch are a loose or dirty connection to a terminal, wrong or damaged ignition switch or a dead battery.

A faulty ignition lock housing may also cause the switch to stop working correctly. While the causes of failure for an excavator ignition switch are simple and can be easily identified, switching out an old ignition switch is not.

Electrical failure is a common reason for excavator shutdowns. The electrical system on the machine is exposed to harsh operating conditions and dirt.

Over time, loose wire connections can lead to damage that disconnects the power supply from the ignition system, resulting in engine failure.

18. What are the maintenance requirements of an excavator ignition switch?

Excavators are big, heavy machines that require precision to work at maximum efficiency. A small problem with the ignition switch, for instance, could lead to a much larger problem down the line when the symptoms start coming back with a vengeance.

The main maintenance requirements of an excavator ignition switch are to check cables for rust, dirt, and wear every so often.

Furthermore, cables must be cleaned once using an electrical cleaner to prevent corrosion of any kind on the terminals.

The other maintenance requirements of the excavator ignition switch mainly include inspecting and cleaning in time, lubricating regularly in fixed times, in addition to periodically checking bolts in the process of assembling the machine.

19. Is friction associated with an excavator ignition switch?

Friction is an opposing force that resists motion and energy. Friction is present between two objects when there is relative motion between the two objects.

When an object moves one way and an opposing force pushes back, this creates what is known as static friction. Dynamic friction is where there is movement, but no opposing force exists.

When you use an ignition switch to start an engine, you are creating friction that creates heat. This isn’t good for the ignition switch.

It will wear out more quickly. Putting lube on the switch can extend its life dramatically. Lube offers a simple solution to this problem by improving the smoothness of your equipment.

20. What is the role of a return spring in an excavator ignition switch?

A key element of your excavator ignition switch is a return spring.

The return spring plays a significant role in an excavator ignition switch. It is primarily responsible for returning the operator to the On or Off position.

The operator can be cycled between the On and Off position and positioned anywhere in-between. The operator also prevents circuit breakers from tripping and protects against accidental movement of switches through mechanical advantage.

Return springs are designed to allow the operator to continue along the path of their work without constantly holding down a button.

The return spring in the ignition switch of the excavator cushions the starter handle’s movement after starting until the throttle handle reaches its fully open position.

21. What is the role of steel housing in an excavator ignition switch?

The role of steel housing in an excavator ignition switch is to protect the internal components from getting electrocuted when there is any accidental contact by the operator’s hands or feet with any electrical conductors.

The steel housing in an excavator ignition switch is to provide long-lasting use. The steel housing provides rust prevention which is crucial in environments that are commonly exposed to water.

The housing also protects the switch’s contacts from getting shorted out. It also provides additional protection to the contact points; this increases the life of the switch because it can handle more voltage than if it was without the steel housing.

Steel housing provides a solid and stable construction. It also offers trouble-free performance.

22. What are the benefits of an excavator ignition switch?

There are several benefits associated with your excavator ignition switch. Some of the main benefits are as follows:

An ignition switch on an excavator is a critical safety device that lets the operator know there is power going to the engine and is ready to operate.

It also turns off power to the engine and prevents additional power from the battery from entering the system. It prevents workers from being electrocuted by stopping any electric current to the excavator when not in operation.

The flameproof excavator ignition switch is for excavation machines, and if your original one is broken, you should replace it. It has good reliability and has a long life.