China manufacturer API Yq115-16 Tubing Power Tong Equal to National Tubing Tong 4500 5500 power lock door not working

Product Description

API YQ115-16 Tubing Power Tong Equal to National Tubing Tong 4500 5500

Product Description

Tubing power tong
YQ115 Series Hydraulic Power Tong is a new pattern of open-type hydraulic power tong, using advanced technology from USA and co-produced with an American company.
It adopts advanced tubing clamping technology and a special transmission system, and is the safe, convenient and effective tong for making-up and breaking-out of tubings of different given specifications.
All these features make it an ideal tool for making up and breaking out common tubings in oil field work.
1. Double-speed-shift design makes possible safe making up and breaking out of tubings
2. Gear reduction system consists of a planetary type gearbox which has the advantages of light weight, small volum, high ratio and high efficiency.
3. Selflock safe guard door. When it opens, it can lock the manual valve handle automatically. When it shuts, it can break away lock situation which could assure operator’ safe when they work.
4. Exchange the position of the jaw assembly and bushing assembly, and prompt shift between making up and breaking out can be realized.
5. Changing the jaw and bushing assembly for different specifications will meet the needs of making up and breaking out in a given range.

YQ series Tubing Power Tong, is interchangeable with National 4500/5500/5600. 

Besides, all tubing tong parts for oil national 4500, 5500, 5600 tubing tongs can be replaced here.

Product Parameters










Pipe Size Range


60 mm(23/8″),73 mm(27/8″),89 mm(31/2″),114 mm(41/2″) 120(4 3/4″)


Small-Size Diameter Pipe

φ26.6 mm(1.050″),φ33 mm(1.315″),φ42 mm( 1.660″),φ48 mm(1.900″), φ52 mm(2.063″)(The standard power tongs are without the installations for making

up and breaking out small-size diameter pipes.)

Rated Torque in


High Gear


2.00 kN.m(1475ft.lbs)


1.90 kN.m(1400ft.lbs)


2.50 kN.m(1845ft.lbs)

Max Torque in High




2.50 kN.m(1845ft.lbs)


2.40 kN.m(1770ft.lbs)


3.20 kN.m(2360ft.lbs)

Rated Torque in


Low Gear


7.30 kN.m (5380ft.lbs)


9.70 kN.m(7150ft.lbs)


13.00 kN.m(9590ft.lbs)












Max Torque in Low Gear


9.00 kN.m (6640ft.lbs)


12 kN.m(8850ft.lbs)


16 kN.m(11800ft.lbs)

Rated Speed in High Gear


96 r/min


101 r/min


76 r/min

Max Speed in High


108 r/min


113 r/min


88 r/min

Rated Speed in Low Gear



26 r/min



20 r/min



16 r/min

Max Speed in Low


30 r/min


23 r/min


18 r/min


Rated Working POressure



14 M pa(2000psi)

Max Working Pressure


17M pa(2500psi)


Rated Flow Rate


114 L/min(30gpm)


Max Flow Rate


151 L/min(40gpm)

Master Tong Dimension (L×W×H)




Total Weight


320 Kg(705 lbs)


350 Kg(772 lbs)


Detailed Photos


Company Profile

Lake Petro company is a professional supplier of various oilfield equipment, including oil drilling and service equipment,oil production equipment,OCTG ,wellhead & downhole tools and spare parts with API certification. Following the principle of “quality first, science and technology innovated, people oriented”, every Lake Petro person is sparing no effort to provide the customers with best products and services. Through efforts of Lake Petro staff, our products have already been exported to USA, South America, Africa, Middle East, Russia and some other countries (regions). With super quality, reasonable price and professional service, Lake Petro company has become VIP (assigned) supplier and built strategic partnership with some coutries’ national petroleum companies.









How to order?

Please send us your inquiry with detail item description or with Model number.

If there is no packing demand we take it as our regular exported standard packing.

We will offer you an order form for filling. We will recommend you the most suitable model according to information you offered.

You send us your detail requirement, we provide quotation to you.

Can I expect a quality products?

All the production and processing are strictly according to ISO 9001:2008 and API standard. At the same time, mature production technology ensuring the quality satisfy international request. We also welcome the third party inspection, such as BV, SGS and TUV.


The information you may like to know before Payment:


1. Methods of Payment:

T/T (Telegraphic Transfer) or L/C at sight


2. Shipping way

Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air

Bulk order: we suggest by air or by sea.


3. Quality Control

We have our own experienced QC.

There will be strict inspection and testing for every order before shipping out.
The information you may like to know before Payment:

1. Methods of Payment:

T/T (Telegraphic Transfer) or L/C at sight


2. Shipping way

Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air

Bulk order: we suggest by air or by sea.


3. Quality Control

We have our own experienced QC.

There will be strict inspection and testing for every order before shipping out.


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After-sales Service: Online Support
Warranty: 1 Year
Manufacturing Process: Forging
Surface Treatment: Painting
Operation Pressure: /
Material: Steel


Customized Request

locking assembly

Symptoms of a Faulty Power Lock

Having a power lock means that you can lock your doors from the front or the driver. This is beneficial for you because you can avoid losing your keys if you forget to lock your doors. But it is also important to know that a power lock can also malfunction. Here are some of the symptoms of a faulty power lock.

Symptoms of a failed power lock

Symptoms of a failed power lock may include a blown fuse, broken wires, or an errant switch. A bad power lock actuator can result in a lockout, making the door inoperable. If you’re experiencing these symptoms, it’s time to get your hands dirty.
First, identify the components of your power lock. This includes the door lock solenoid, the wiring harness, the actuator, and the control module. If you have a faulty switch, it may be the most obvious culprit, but there are other possibilities. A fuse can also be blown, and this may be a cheaper alternative to replacing your power lock actuator.
The most important component is the actuator itself. This is an electronically controlled device that engages the lock when you press the switch. The switch sends electricity to the solenoid, which controls the locking mechanism. You’ll hear a clicking sound when you engage the lock.
Another notable feature of the power lock is the solenoid. A solenoid is a small, electromagnetic device that controls the locking mechanism. It may be damaged due to a collision or corrosion. In extreme cold, a power lock linkage may freeze, preventing it from engaging. If this occurs, the solenoid is damaged and the entire power lock system is ruined.
A power lock with a failed solenoid may operate in an inconsistent manner. It may not work as often as it should, or it may not even work at all. A failed power lock may also result in an inoperative door handle.
A failed power lock may also mean a failed power handle, which can be a frustrating situation for the driver. To remedy this problem, the handle must be firmly inserted into the door and the clip must be tightened. This should be followed by re-plugging the handle back in.
Finally, if you have a failed power lock, it’s time to visit your local dealer. A dealership will be able to provide detailed information about your vehicle’s specific components, as well as a more complete solution. Depending on the manufacturer, you may be able to have a technician replace the parts that are faulty.
locking assembly

Common parts that may be at fault

Having a power door lock that does not work properly can be a frustrating experience. It can prevent you from entering the vehicle or locking the doors when you get out. The good news is that it is a fairly easy fix. You may need to contact your local automotive repair shop for help.
In order to fix a power door lock, you will need to remove the door panel. Then, you will need to access the actuator. The actuator is a component that helps you lock and unlock the door. The power door lock will not work unless the actuator is working properly. You will also need to check the cables that go into the power lock and power handle. If any of them are loose, they will prevent the lock from working.
A power door lock can also be faulty due to damage or broken wires. You may also need to replace a fuse. If the fuse does not work, it will be hard to open the doors of your vehicle. If you can replace the fuse, you can restore normal functionality to your door lock.
While it may seem like a good idea to fix the power door lock yourself, it is better to take the vehicle to a mechanic. A mechanic can perform a more thorough test and diagnose the problem. If your vehicle is an older model, you may need to replace the wiring for it. You should also ask your dealership for advice.
The power door lock is one of the most commonly used features of any vehicle. If yours is malfunctioning, it is important to have it fixed as soon as possible. The problem may be as simple as a blown fuse or as complex as a broken linkage. If you cannot fix your power door lock, you may need to contact your dealer to schedule a service appointment.
In addition to a blown fuse, you can also try to fix a power door lock by replacing the door panel. This will give you a clearer view of the lock assembly.

Symptoms of a faulty actuator

Symptoms of a faulty actuator in a power lock include an erratical operation of the door locks and a random door lock that is unsettling. This issue can be caused by a power door lock actuator malfunction, or by a switch problem. The best way to troubleshoot the issue is to take it to a mechanic.
Faulty actuators can make strange noises when the doors are locked or unlocked. If the noises become louder, you may have worn out gears or a motor. This can lead to random door locking, which is a serious safety issue for any car owner.
The first step in diagnosing a power door lock actuator failure is to locate the actuator. The actuator can be located inside the door panel or near the door latch. It is usually connected to the door latch assembly by plastic clips or screws.
If the actuator is not visible, then you can try to access it by removing the door cover. Then, you can probe the electrical connector of the actuator with an automotive meter. If the meter registers 12 volts in both directions, then it is likely that the actuator is working properly. However, if the meter shows negative in one direction, then the actuator is not working properly. Then, it may be a problem with the solenoid, the door lock switch, or the electrical wiring.
Symptoms of a faulty actuator are similar to those of a broken door switch. They may be intermittent, and you may hear a clicking sound. However, it is possible for the actuator to work sometimes, and not work at all. If the actuator is faulty, you may need to replace it.
If the actuator is not working, you may also need to replace the switch or the wiring harness. This can be complicated. It is important to ensure that all the cables in the lock assembly are accounted for. This includes cables from the power handle. If the cables are broken or frayed, they will not work properly.
If your vehicle is under warranty, it may be a good idea to take it to your local mechanic for assistance. They will be able to provide you with detailed information about your power door lock actuator issue.
locking assembly

Changing the lock switch

Changing the power lock switch in your vehicle can be a simple process that helps your car run efficiently and safely. However, if you are not careful, it can also lead to a dangerous situation.
The power door lock switch is a central locking feature located on every door in your vehicle. It is also found on the central console of some vehicles. This is the part that allows you to lock and unlock your doors using a button. In addition, it is used to secure the internal valuables of your vehicle.
It is important to be aware of the signs that may indicate that your power door lock switch needs to be replaced. If you are experiencing a problem with the power door lock, you may have a faulty switch that is causing your door to lock and unlock randomly. This is a problem that can happen at any time. A faulty switch may be caused by electrical issues, wear and tear, or other problems.
The power door lock switch may also be exposed to harsh elements that may cause it to wear out. This can include exposure to rain, snow, and other outside elements. These elements can also affect the electrical contacts inside the switch. When these contacts become worn out, the switch will lock and unlock too quickly. This can cause a driver to get distracted and cause unsafe driving conditions.
Another common problem with door-mounted electronics is moisture in the switch. This is usually caused by corrosion or wear and tear. It is best to have the switch checked by a mechanic so they can determine whether the switch is faulty. If moisture is present, it is a good idea to replace the switch as soon as possible.
Once you have identified that your power door lock switch needs to be changed, you will want to get a quote for the cost of replacing the switch. A mechanic can provide you with a price estimate based on the condition of your switch. Most mechanics charge between $80 and $120 an hour. However, if there is further damage to the door mechanism, this may increase the labor cost.
China manufacturer API Yq115-16 Tubing Power Tong Equal to National Tubing Tong 4500 5500   power lock door not workingChina manufacturer API Yq115-16 Tubing Power Tong Equal to National Tubing Tong 4500 5500   power lock door not working
editor by CX 2024-03-25