Hammer Interskol P 26 Dismantling

The procedure for disassembling Interskol rotary hammers

In recent years, Interskol hammer drills have become especially popular. They are reliable in operation and easy to repair. It's easy to get spare parts for them.

Interskol rotary hammers have a wide selection. The tools are conventionally divided into two sectors: hammer drills equipped with an SDS-plus type chuck, and hammer drills with an SDS-max type chuck.

Repair of the Interskol rotary hammer can be carried out both in service centers and without the help of others. To repair Interskol rotary hammers on your own, you need to have the skills of a mechanic and knowledge of electrical engineering at the level of high school.

And always remember to follow safety regulations.

Disassembling Interskol rotary hammers models P18, P22, P26, P28, P30, P600, P710

The operating mechanism of all rotary hammers is similar.

The torque from the rotor is transmitted to the barrel shaft and the working tool attached to it. Immediately, in the presence of a swinging bearing, simply called a “drunk bearing,” the torque is converted into a reciprocating motion, transmitting a shock impulse to the working tool.

Our client is left with Interskol rotary hammers assembled according to one general scheme and consisting of the same blocks.

Conventionally, Interskol rotary hammers consist of 3 blocks:

Impact unit gearbox unit.
Stator block.
Power and control circuit block.

Repair of Interskol rotary hammers should begin with a study of the tool diagram, preparation of tools and the working area.

The designated blocks of the listed models have their own design features.

For ease of consideration, we will divide the exposed rotary hammers into groups.

In the first group we will include Interskol P-18, P-22, P-24, P-26, P-30 rotary hammers.
In the next group we will look at the disassembly of the Interskol P-600 and P710 hammer drills.

Daily care and storage

In order for the tool to serve the master properly for many years, during operation it is recommended:

run the device “idle” before starting work. If the hammer drill shows signs of breakdown, work is stopped and diagnostics begin.
After completing the work, take care of the cleanliness of the rotary hammer - it is important to remember that electrical appliances “do not like” water; cleaning is carried out with a vacuum cleaner and rags.
If the hammer drill is working in the cold or has been moved indoors from outside, do not start it right away. Allow the components to “warm up” and the lubricant to thaw.
Carry the hammer drill in a special box or suitcase (usually included) to avoid dust and construction debris.

Thus, if you follow objective precautions and operating rules for the hammer drill, it will last a long time and without breakdowns. If trouble does happen, the suggested advice from the experts will help determine the essence of the problem and fix the breakdown in a timely manner.

The construction industry is developing and adding new tools every day. For several years now, the hammer drill has been among the top power tools. Essentially, this is a regular drill that is equipped with an impact effect. Every second worker encounters malfunctions.

Disassembling the keyless chuck

Let's look at disassembling a quick-release chuck using the example of an Interskol P-26/800ER hammer drill.

Having installed the hammer drill on the back of the handle, you need to remove the protective sleeve pos. 1, remove the washer pos. 2 and remove the locking ring pos. 3.

Next, remove the washer pos. 4 and the retaining ring pos. 5. Next, the pressure sleeve pos. 6 is removed.

To release the fixing ball pos. 8, you need to press on the special washer pos. 9. Pull out the ball, take out the conical spring pos. 10.

The design of the quick-release chuck for the Interskol P-30/900ER hammer drill contains the least number of parts. But the disassembly procedure remains the same.

The quick-release chucks for the Interskol P-600ER and P-710ER rotary hammers are virtually the same and are disassembled in a similar sequence.

Keyless chuck for rotary hammer Intersol P-30/900ER

The parts of the quick-release chuck for the Interskol P600ER and P710ER rotary hammers are dismantled in the following order:

the special ring pos. 1 is removed;
release sleeve position 2 is released;
press the special ring pos. 3 and take out the ball pos. 4;
the spiral spring pos. 5 is removed.

For all Interskol rotary hammers, to remove the gear housing, you must first remove the mode switch.

Electric graphite brush Interskol UShM-1800M

Electric graphite brush Interskol UShM-1800M available in Yekaterinburg

Electric brush UShM-180/1800M size 7.3x14.9x12.7

Suitable for

1800W / 180mm / 8000rpm / 220V / 3.8kg

Availability in stores Description Files (6) Payment and delivery To wholesalers

Electric brush UShM-180/1800M size 7.3x14.9x12.7

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Delivery to

Receipt at points of issue

You can pick up your order yourself at one of three locations. Addresses and opening hours are listed above. In stores on the street. Frazerovshchikov and Sulimova have fitting rooms on the street. Unfortunately, it is not yet possible to try on clothes or shoes.

In connection with preparations for mandatory labeling of shoes from 03/01/20 and updating of cash register equipment, the sale of all shoes in the central office at the address Ekaterinburg, st. Khlebnaya 17 is temporarily available only to legal entities by bank transfer

. We also temporarily do not send shoes to individuals through transport companies, Russian Post, or deliver within the city using our own transport.

Delivery within the city

Delivery of orders up to RUB 30,000.
— 300 rub.
, over 30,000 rub.
- for free
.
Orders up to 1000 rub.
We are temporarily not delivering within the city. We also cannot carry multiple sizes of clothing or shoes to choose from or allow you to try on clothing upon receipt. We apologize for the inconvenience caused. Delivery is carried out within the EKAD
from 9 a.m. to 5 p.m. on the next business day
after ordering or receipt of all goods ordered at the central warehouse.
Orders up to 30 kg are delivered by the driver to the door, over 30 kg - to the entrance/warehouse. Payment in cash to the courier.
We will be very grateful if you prepare the order amount without change. You can always cancel your order upon delivery, you will not owe anything.

Payment

For individuals

Payment in cash or plastic card at the point of issue or
only in cash
upon delivery. When delivering goods to order, an advance payment of 30 to 100% may be required, depending on the popularity of the ordered product.

For legal entities

Add the products you need to your cart and select the “Legal entity” checkbox when placing your order. Indicate your company name and details (for the first order). No registration required. Payment by standard non-cash payment against the invoice. An invoice will be sent to you by email after your order is confirmed.

Returns and warranty repairs

The Spetsregion company is a manufacturer and supplier of workwear, work shoes, personal protective equipment, and tools. We work with all companies that require workwear or uniforms for work: manufacturing enterprises, construction companies, hospitals, service enterprises, trade organizations and others.

We offer favorable conditions for wholesale customers. Retail prices are shown on the website.

Discounts start when ordering over 15,000 rubles at retail prices.

Disassembling the impact mechanism of the Interskol P-26/800ER hammer drill

In the Interskol P-26/800ER hammer drill, the impact mechanism consists of the following components:

tool receiver;
barrel pressing unit;
trunk;
intermediate shaft;
strikers, drummers, industrial mass.

Disassembling the tool receiver

The tool receiver pos. 12 is disassembled after removing the parts of the quick-release chuck from it.

Initially, four rollers, position 11, are carefully removed. Next, the receiver is removed from the housing, pos. 18, into which the needle bearing, pos. 20, is inserted.

The barrel, pos. 36, is attached to the needle bearing.

Pull the tool receiver out of the barrel.

From the tool receiver you need to remove the industrial mass pos. 16, the bushing pos. 15, the cuff pos. 14 and the rubber sealing ring pos. 13.

Do-it-yourself hammer drill repair

The tool can only be repaired after the allotted warranty period has expired.
Mechanical damage is much more difficult to fix than problems with the electronic unit. Establishing the cause of a breakdown takes time - you need to inspect all the mechanisms. After this, you can fix the problem. If the device turns on, but does not perform the chiselling function, then the breakdown may lie in the operating mode switch. Worn switch fingers may indicate a problem. Wear occurs due to constant contact with rotating mechanisms.

There is also such a thing as a breakage of the extension of the latch that holds it inside the gearbox. The mode can be switched arbitrarily. However, this does not affect the performance of the tool.

If this malfunction does not cause much trouble for the owner, then you just need to turn the switch exactly 180 degrees.

The hammer drill's keyless chuck experiences the heaviest loads; if it breaks, you need to purchase a new one and replace it. To extend the life of this mechanism, you just need to regularly clean it from dust and dirt that accumulates during operation.

Repair of rotary hammer P 710ER

The general rules also apply to the P 710ER model. It is necessary to disassemble the tool according to the established instructions, then identify the problem in operation,, if possible, eliminate it in full and reassemble it according to the same scheme.

Disassembling the barrel of the percussion mechanism

The barrel, pos. 36, is removed from the internal housing, pos. 18, if the gearbox housing separates from the stator housing. For this purpose, you need to remove four screws, pos. 30, from the gearbox housing.

Then unscrew the three screws pos. 85 on the handle pos. 86. After removing the handle, turn the brush holder housing pos. 81. until the moment when it is of course removed from the case.

Now the gearbox housing and the stator housing are simply divided using a screwdriver, which is used to pry off one of them at the junction.

The barrel is simply removed from the industrial shield, pos. 53 (inner housing).

Mounted on the outer diameter of the barrel are: spur gear pos. 35, spring pos. 33, washer pos. 32 and retaining ring pos. 31.

In the barrel cavity there is a body of the catcher, position 40, and a firing pin 45.

Defects and malfunctions of the hammer drill

To understand the defects and malfunctions of power tools of this type, our team reviewed several popular brands and identified the causes of the most common breakdowns:

Increased wear of the working element;
The appearance of cracks on the handle and body;
Rechargeable models have short-lived batteries;
Frequent kinks in the wire in electric models;
Problems with the impact mechanism and its interaction with the conventional one;
Fragility of bearings, chuck, parts with teeth, safety clutch.

Why does the hammer drill heat up?

Most often, the reason for this is the length of operating time and heavy loads on the tool. The engine interacts with working units, which may result in overheating. When it appears, turn off the tool, give it time to cool - at least half an hour.

If the rotary hammer hammers but does not drill

The conical spring holds the clutch, if it becomes loose, a problem may arise;
The locking roller no longer locks the large shaft gear;
The tool lock in the barrel stops working.

In this case, it is enough to replace or tighten up the problematic parts and start in a gentle mode.

Smell from the hammer drill

Third-party odors may occur during overheating or increased load for which the model is not designed. If it is new or just from repair, most likely the parts simply have not gotten used to it, and this process will take time.

Hammer doesn't work

A short circuit that led to the combustion of the rotor or stator;
Complete wear of carbon electric brushes;
The brush holders are loose and do not hold them;
The lamellas on the collector are burnt out;
The winding on the rotor or stator has broken;
Battery failure;
The power cord is kinked.

Winding can be done at home. If you decide to replace brushes, buy two at once, regardless of whether one or both are damaged. If a short circuit occurs, replace the burnt parts with serviceable ones. If the problem is in the wire or battery, buy new ones and install them in place of the old ones.

Oil is leaking from the drill

Leakage is a direct indicator of wear and tear on certain parts inside the mechanism. Spin the model and make diagnostics, change the lubricant if necessary.

The hammer drill is slipping

The reason for this is a weakened coupling. It is enough to tighten it or replace it.

Reverse doesn't work

The reason is the failure of the mode switch button. Disassemble the back panel and, if necessary, replace the contacts.

The hammer drill does not rotate under load

Most likely, the load does not correspond to the permitted norm, resulting in this defect.

Dismantling the intermediate shaft

To disassemble the intermediate shaft pos. 57, you need to remove it from the inner housing. From the shaft pos. 58, remove the switch arm pos. 55 and the spring pos. 56.

On the other side: remove the support bushing pos. 65, the spring support pos. 64, the spring pos. 63, the combined gear wheel pos. 62.

Intermediate shaft of the Interskol P-26/800ER rotary hammer Catalog of spare parts for the intermediate shaft of the Interskol P-26/800ER rotary hammer

We disassemble the hammer drill step by step - quickly find a breakdown

Just imagine that your tool suddenly stopped working or you urgently needed to replace a faulty part. The easiest way is to take the hammer drill to a service center for repairs, but this takes time, which means it will stall your work for some period. But if you know how to disassemble the device, it will be much easier for you to carry out the rest of the work. In addition, this will lead to significant cost savings, because you will not need to spend money on paying for the services of repair centers.

Instructions for disassembling the tool:

We begin work, starting from the top unit: first, the rubber tip is removed, then the washer, spring, and the ball completes the work.
After you have removed the ball, unscrew the screws that hold the housing, remove the handle cover, if available, and lastly, disconnect the stator wires.
Remove the brush holder.
The next stage is to separate the gearbox and housing until a gap forms. It is through this that we will remove the switch.
After this, the body of the hammer drill is placed vertically, fixed with a vice, and all its parts are carefully removed from the device.

Whatever breakdown awaits you, clean the case - sometimes it is dirt and dust that prevent the device from working properly.

Disassembling the impact mechanism of the Interskol P710ER hammer drill

The design of the impact mechanism and the disassembly procedure for the Interskol 710ER rotary hammer are somewhat different from rotary hammers of other models.

The main differences are in the design of the intermediate shaft, the barrel of the impact mechanism and the mode switch.

Diagram of the impact mechanism and the intermediate shaft of the Interskol P710ER

The Interskol 710ER rotary hammer is a rotary-impact machine. Consists of an electric drive and an actuator. For electric drive, a commutator motor is used. The actuator is essentially a combination of a compression-vacuum type impact mechanism and a rotational mechanism. The reciprocating motion is transmitted by a rolling bearing.

The diagram shows the procedure for disassembling the barrel, position 15 (indicated by a reddish arrow), the composition of the strikers and strikers (indicated by a blue arrow). The greenish arrow indicates the details of the mode switch.

The intermediate shaft consists of shaft pos. 47 and parts mounted on it. It is easy to understand, according to the attached diagram, and does not require any special knowledge.

The structure of the tool and its mechanism

The functional purpose of a hammer drill is determined by its internal structure.

The reinforced shock-rotational mechanism of the tool is the so-called “oscillating bearing” or “crank rod”, which, rotating from the engine, transmits vibrations to the pneumatic pistons (or piston), after which the air pumped into the pistons pushes the striker with a blow.

An impact force of 17-20 kilojoules and parallel rotation of the displacer due to the transmission gear ensures that the chisel or drill enters high-density material. It is necessary for punching through holes or drilling holes for electrical wiring or plumbing pipes.

Video about the construction of a hammer drill and impact mechanism:

Disassembling the electronic part of the Interskol hammer drill

The electronic part of the Interskol hammer drill consists of 3 main parts:

rotor;
stator;
control circuits with carbon brushes.

The procedure for disassembling the electronic part of all models of Interskol rotary hammers is virtually the same.

Electronic circuit of the hammer drill Interskol P-26/800ER

In the previous steps, we divided the housing into two: the gearbox housing and the stator housing.

Grinders Interskol: honed power

INTERSKOL presents “Russian heroes” among the grinders: UShM-230/2600EV, UShM-230/2600M, UShM-230/2400EV, UShM-230/2300M, UShM-230/2200EV, UShM-230/2100M and UShM-230/2100T . Builders choose them for the toughest jobs. There are several reasons for this.

Cuts like clockwork

High-power motors from 2100 to 2600 W cope with cutting tiles, metal and stone of any hardness. The engine cools quickly and does not overheat even under high loads.

For a wide range of work

Grinders work with equipment with a diameter of up to 230 mm. This allows you to cut metal of considerable thickness, grind and clean large areas.

Comfortable handle

For EV series models, the positions of both handles are adjustable. Both the main and additional handles are installed in one of three positions. Rubber pads dampen high-frequency vibration and allow you to hold the tool firmly. Hands do not slip, work is easier and safer.

The UShM-230/2100T model has a closed-type main handle, which will prevent your hand from slipping during operation.

Easy brush replacement

To replace the carbon brushes, you do not need to disassemble the tool body. EV models have two small covers near the rear handle on the sides of the body. Simply unscrew the screw, remove the plugs and remove the brushes. This takes no more than 10 minutes.

It's even easier with M series tools. Just unscrew the plugs and the brushes will appear on their own. They are easy to remove and replace with new ones.

Disassembling control circuits and dismantling carbon brushes

The control base for the Interskol hammer drill is the switch pos. 87 and the reverse lock pos. 90. Using the combination button, the hammer drill has the option to set the speed of the electric motor.

To get the brushes pos. 83, you need to remove the brush holder pos. 81. It is removed by turning it counterclockwise by 90º. Having released the brush holder, the carbon brushes are easy to remove.

The design of the Interskol P710ER and P600ER rotary hammers has its own characteristics:

there is no combined brush holder;
a different type of switch is used.

It remains for our client! The Interskol hammer drill has been disassembled. Read the instructions for repairs and how to assemble and lubricate the hammer drill.

Source

Stator assembly assembly

The stator assembly of the Interskol P-26/800ER hammer drill is no different from the stator assembly of any other hammer drill.

The stator pos. 74 is inserted into the stator housing, secured with screws pos. 73 and closed with a diaphragm pos. 72.

Electrical assembly diagram

The rotor pos. 69 is inserted into mesh with the helical gear of the intermediate shaft.

Assembling the housing of the Interskol P-26/800ER hammer drill

The assembly of the Interskol P-26/800ER hammer drill is completed by installing the stator housing cover pos. 77.

Assembly of rotary hammer housings Interskol P-26/800ER

Installing the brush holder and carbon brushes

Having secured the housing cover, proceed to installing the brush holder pos. 81. Installing the brush holder does not cause any difficulties.

Install carbon brushes, pos. 83, into the brush holder, secure them with spiral pressure springs, pos. 84.

All that remains is to insert the switch button pos. 87, connect the wires to the stator terminals, and hide the wires in the handle of the hammer drill.

Checking the functionality of the Interskol P-26/800ER hammer drill

After assembling the Interskol hammer drill, make sure that the rotor shaft rotates easily by twisting it behind the tool receiver.

Inspect the correctness and uniformity of the carbon brushes. Connect the instrument to a 220 V network.

Turn on the hammer for a short time and inspect the sparking of the carbon brushes.

Install the protective cover pos. 85.

The assembly of other models of Interskol rotary hammers is practically no different and is shown in the video below.