How to Disassemble a Screwdriver with a Ratchet. Purpose of reversible screwdrivers

How to Disassemble a Socket Wrench

a reversible screwdriver is a tool consisting of a handle with a rubber anti-slip coating, a switch that allows the tool to work in three modes, and a metal rod with a ratchet mechanism.

Most models already have a set of bits, with different shapes and configurations, for tightening/unscrewing hardware of different sizes and shapes. The screwdriver and bits are made of chrome vanadium alloy, which has a Rockwell hardness of 45-50.

The principle of operation of a ratchet wrench is simple enough and consists in the following: a special “dog” with a spring presses against the toothed wheel and does not allow it to rotate in the opposite direction. This mechanism is called a ratchet because of its characteristic sound. The direction of rotation of the bit is adjusted with a switch that can be set in three positions: twist, unscrew, and lock. The construction of these switches can be subdivided into ring switches that can turn around their longitudinal axis, toggle switches with a small lever and slide switches with a key.

disassemble, screwdriver, ratchet, reversible, screwdrivers

in the “twist” position, the direction of rotation is clockwise, but if you try to turn the tool in the opposite direction, the ratchet mechanism engages and the tool changes over to idle. The screwdriver handle can turn freely to the other side, while the bit is firmly locked in position. Unscrewing switch mode does the same thing, but the tip motion is limited to clockwise rotation. In the “lock” position, the reversible tool turns into a regular screwdriver and any of the specified directions of motion will work.

How to make ratchets last longer ?!

Today, we want to make a small review on the care of two types of ratchets, this ratchet handle and the closed type combination ratchet.

on the regular ratchet handle, the ratchet head has a collapsible mechanism that is secured with two bolts (see picture below). image below).

As for the ratchet, it is a closed type (see. the picture below), t.e mechanism is not collapsible, so the service life will be shorter than with a conventional ratchet handle.

When it comes to the maintenance of these keys, there are two most important points. the first thing you should pay attention to when working with these wrenches, is not to apply much force when loosening strong connections, firstly we pull off connection with wrench or usual wrenches, open-end wrench, ring spanner, and then you can work with a ratchet.

And the second point is the constant lubrication of the keys. As for the ratchet handle, since it has a removable mechanism, we unscrew the two screws of the ratchet mechanism with a torx bit.Since it has a removable mechanism, using a screwdriver with a torx bit, you unscrew the two screws on the ratchet mechanism, turn it upside down and take out the main part of the ratchet, the slotted shaft. Then take grease, you can put lithol or any other grease on a similar basis and grease the inside part of the ratchet, where the ratchet spline shaft is located, and then put everything back in place and tighten the bolts. The ratchet sound will change after this lubrication procedure, because the.The splines of the shaft will not run dry and the sound will be softer and more pleasant for your ears. Accordingly, after such lubrication, the service life of the ratchet is much longer.

If you don’t want to waste your time on this lubrication procedure and want to simplify it, you can use the ratchet repair kit (see the. the picture below), which are sold in auto tool stores. Simply unscrew the ratchet, remove the worn-out mechanism, and replace it with a new one. Repair kits for each ratchet model are different.

As for the closed-type ratchet, it’s a little different. If you work with car suspension, dusty and dirty nuts, it is recommended to wash these keys in petrol after such work and repairs and, respectively, to use ratchet mechanism in the process of washing. If you want to lubricate the mechanism inside the ratchet, you can put the ratchet head in a container with ordinary machine oil and work on the ratchet. After that, you wipe everything off and remove any oil residue from the ratchet. After this procedure you will enjoy your ratchet for a long time to come. Keep an eye on your tool and you will enjoy using it for a long time to come.

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That’s all we wanted to tell you about caring for your tool in this little review.

Want to see ratchet wrenches (models and features), follow this link

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Advantages and disadvantages

The popularity of reversible screwdrivers is due to a number of undeniable advantages of this tool over classic models.

  • The ability to work without taking the tip out of the slot makes work much faster and more efficient.
  • All screwdriver manipulation can be performed with one hand without interception. This puts less strain on the hand and prevents fatigue.
  • The accessory case with which most models are equipped is divided into many compartments, so that every bit, head, socket and extension has its own place. It’s very handy and makes it easy to find the right bit when you need it.
  • Thanks to its many different bits, the ratchet screwdriver can replace an entire set of locksmith tools.
  • All reversible screwdrivers are fully compatible with commercially available bits, heads, and other attachments, so you can add accessories as needed.
  • The handle of the tool is made of water- and dirt-repellent material with dielectric properties. This makes it possible to work on live parts. Additionally the handle is resistant to chemicals and acids, which makes it usable in many aggressive environments. But if they come into contact with gasoline or solvents for a long time, the rubber layer can start to break down.

Along with a lot of obvious advantages, there are also disadvantages. These include the rapid failure of the ratchet and low resistance to falls and impacts. It is impossible to hit on such tool when it is hardened, because the mechanism can simply break.

Main Characteristics

Handles are made of injection molded or powdered plastic.

The first variant has a soft base, and is characterized by elasticity, due to which the tool is convenient to hold in the hand.

A good tool usually has a rubberized handle.

In addition to being ergonomic, it is also moisture repellent.

This tool hardly ever gets dirty, and to clean it, you just need to wipe the surface with a damp cloth.

In addition, the layer of rubber has dielectric properties, which means that this screwdriver is very convenient to work with elements of live electrical networks.

Another prerequisite for a quality handle is its resistance to aggressive chemical compounds.

This is again a special rubber that can withstand contact with chemical components.

However, prolonged contact with solvents or gasoline will destroy the coating.

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In this case the plastic handle is the right choice.

The most common types of reversible screwdrivers:

Equipped, as a rule, with an extension adaptor for sockets.

Screwdriver handles are often used for heads in sizes 5 to 13 and SL to SL6, PH0 to PH2, PZ2, T6 to T30, SP4, TW2, TW3, HEX4 to HEX6 bits.

With reversible handle for precision work.

The tools are considerably smaller in size; most sets include a flexible extension.

Screwdrivers of this size are often used in conjunction with sockets of size 2.5. 5.5 and SL1 to SL4, PH000 to PH1, T4 to T10, HEX0 bits.9. HEX2, SP2.6, A0.8. A1.2.

Screwdrivers with bit and socket sets have a hardness of 45. 50 (Rockwell scale).

Handle covered with plastic and/or thermoplastic rubber.

Mode switches can be ring-type (part of the handle swivels in relation to its axis), toggle-type (small lever on the handle body) or slide-type.

Design and function

A reversible screwdriver is a tool that consists of a handle equipped with a rubber anti-slip coating, a switch that allows the tool to operate in three modes, and a metal rod that has a ratchet mechanism built into it.

Most models already come with a set of bits with different configurations, designed for tightening/unscrewing metalware of various sizes and shapes. The screwdriver and bits are made of chrome vanadium, which has a Rockwell hardness of 45-50.

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the screwdriver operating principle is quite simple and consists in the following: a special “doggie” is pressed against the toothed wheel by a spring and does not allow it to rotate in the opposite direction. This mechanism is called a ratchet because of its characteristic sound. Bit direction is adjustable with a switch that can be set in three positions: tightening, unscrewing and locking. The ratchets are divided into annular ratchets which can rotate around a longitudinal axis, snap rings with a small lever, and slide switches with a key.

In the “twist” position, the direction of rotation is clockwise, but if you try to turn the tool in the opposite direction, the ratchet mechanism takes over and switches the tool to idle speed. The screwdriver handle can turn freely to the other side, while the bit is held securely in one position. Similar to the “twist-off” switch mode, but with a clockwise restriction in the movement of the tip. In the “locking” position, the reversible tool becomes a normal screwdriver and any of the set directions of movement will work.

What are the first parts to break down?

In addition to normal wear and tear, there are also unplanned failures, called natural wear and tear. Parts that become unusable must be replaced.

You should pay attention to these parts:

The frame. Loss of rigidity leads to deformation of the frame, which due to excessive accumulated stress can even crack. Cracks are inevitable on such hard rides, so it’s essential to keep an eye on the condition of the bearings.

Bearings. Wheels are another part that wears out quickly and need to be replaced first. Wear on the bearings affects the ratchet, rear derailleur, pedals. The bearings, rear suspension, and steering column have a longer life. It’s easy to spot a problem when you hear cracking noises or changes in the mechanism.

Wheels. Because they are under maximum load, they wear out faster than other parts. Spoke strain is considered a common problem, leading to deformation of the bike hub and bicycle hub axle, leading to driving problems.

Transmission. How easy it is for the bike to move depends on the condition of the chain. If it is dirty, worn out, or stretched, the vehicle will not work adequately

The chain should always be clean and lubricated, so it is adjusted as needed or replaced with your own hands or with the help of a master.

Suspensions. If there are signs of wear. oil traces due to leakage of o-rings or oil seals, loss of elasticity during riding, color changes in the coating on the legs, attention should be paid to the pneumocar and springs. You need to check the integrity of the bushings and dust caps.

Brakes. It’s not uncommon for faulty brakes, or more precisely, failed pads to cause accidents, as well as air trapped in the hydraulics and dirty caliper pistons.

Repair of bicycles at home with their own hands will extend the life of the vehicle and make safe and comfortable ride. Repairing a bicycle at home with their own hands is a way for many to feel their solvency and independence, it becomes an interesting hobby and useful.

How to make ratchets last longer ?!

Today, we want to do a little review on the care of two types of ratchets, these are the ratchet handle and the closed type combination ratchet.

disassemble, screwdriver, ratchet, reversible, screwdrivers

in a usual ratchet handle the ratchet head has a demountable mechanism that is secured by two screws (see: “Description of the ratchet head on the handle”). image below).

As for the ratchet, it is of the closed type (see. the image below), t.the mechanism is not collapsible, so it will have a shorter service life than a conventional ratchet handle.

As for maintenance of these wrenches, there are two most important points. The first point to pay attention to when using these wrenches is not to apply too much force when unscrewing hard joints, firstly we tear off joints with a ratchet or usual wrenches, open-end wrenches, and then you can work with a ratchet.

And the second point is the constant lubrication of the wrenches. As for the ratchet handle, i.e.as it has a removable mechanism, using a screwdriver with a torx bit unscrew the two screws on the ratchet mechanism, turn it over and remove the main part of the ratchet spline shaft. Next, you take the grease, you can lithol or any other grease on a similar basis and lubricate the inside of the ratchet, where the ratchet spline shaft is located after that put everything back in place and screws. After this lubrication procedure, the ratchet sound will change, i. e.the splines of the shaft will not run dry and the sound will be softer and more pleasant to the ear. The ratchet has a much longer service life after this lubrication.

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If you don’t want to waste your time on this lubrication procedure and want to simplify it, you can use a repair kit for the ratchet (see the picture below). You can use the ratchets (see image below), which are sold in car tool stores. You just unscrew the ratchet, take out the worn out mechanism and put a new one in its place. Each ratchet model has its own kit.

As for the closed type ratchets, it’s a little different. If you work with car suspension, dusty and dirty nuts, it is recommended to wash these tools in petrol after such work and repairs, and, respectively, to use ratchet mechanism in the process of washing. If you want to lubricate the mechanism inside the ratchet, you can put the ratchet head in a jug of ordinary machine oil and work the ratchet. After that, wipe everything down and remove any oil residue from the ratchet. You will enjoy your wrench for a long time after this procedure. Take care of your tool and it will please you with its work for a long time.

Repair your ratchet with your own hands

I think that every motorist, auto mechanic, electrician, plumber has his favorite tool, which was made just for his hand and serves without any problem for many years. When a tool like this (wrench, screwdriver, pliers, hammer, etc.) is used, it should not be removed.д.) breaks, falls into disrepair, the mood is greatly affected by such an event. You’ve lost a loyal companion and incurred additional financial expenses I know? That’s what happened to me, for example. One day, my favorite TOPTUL ratchet broke. At first, though, I thought it was nothing serious. Since the ratchet has been used for a couple of times, a similar problem (it skipped during torqueing, worked idly) has happened to it before. And the problem was solved. disassembly, cleaning and washing the inside of the wrench, reassembly with subsequent lubrication of the mechanism. And that was it. After this simple procedure, the wrench worked like new.

But this time washing and cleaning did not work. The ratchet kept slipping. Close inspection of the mechanism components showed signs of wear on the toothed roller and especially the ratchets. The picture No. 1 may not be perfectly clear, but you can still see the worn out prongs of the dogs.

Got upset, of course. I decided the wrench was worn out. I have to write off my favorite and buy a replacement. Went to the market. And, to my surprise, the salesman, after listening to the sad story of how I lost my trusty helper, offered me not a new wrench, but a kit to repair the old ratchet. About! In photos 2 and 3 you can see the original kit package and a set of parts that are included in it. This repair kit will fit TOPTUL ratchets, numbers CHAG0813 and CJBG0815 (1/4 socket square on these ratchets).

After buying the repair kit all that’s left is to install it. There is nothing difficult in this activity. But, I decided to make a small photo report about ratchet repair. I hope you will find it interesting. And in case a similar story happens to your ratchet, you can easily and quickly repair the ratchet with your own hands.

You need: Torx T7 and T8 screwdrivers or sockets. And tweezers (just using your fingers with small springs will be difficult to handle, I personally tested it

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