How To Properly Disassemble Interskol Perforators Of Various Models

2023 Author: Philip Bishop | [email protected]. Last modified: 2023-08-25 07:54

Disassembly of Interskol punchers of models P18, P22, P26, P28, P30, P600, P710
Design features of the keyless chuck type SDS-plus
Dismantling the keyless chuck
Dismantling the mode switch knob in the Interskol P-26 perforator
Dismantling the block of the percussion mechanism of the perforator Interskol P26 / 800ER
Dismantling of the percussion mechanism of the Interskol P-26 / 800ER perforator
Dismantling the barrel of the percussion mechanism
Dismantling catchers, strikers
Dismantling the intermediate shaft
Dismantling of the percussion mechanism of the Interskol P710ER perforator
Dismantling of the electrical part of the Interskol perforator
Disassembling the stator
Disassembling the rotor
Disassembly of control circuits and dismantling of carbon brushes
Interskol perforator disassembly video
Dismantling perforator Interskol P-18 / 450ER
Dismantling the puncher INTERSKOL P-26 / 800ER
Dismantling the puncher INTERSKOL P-600ER
Dismantling perforator Interskol P-710ER

Recently, Interskol perforators have been especially popular. They are reliable and easy to repair. It is easy to get spare parts on them.

Interskol perforators have a wide range of models. The tools are conventionally divided into two segments: rotary hammers equipped with an SDS-plus chuck and rotary hammers with an SDS-max chuck.

Interskol perforator repair can be carried out both in service centers and independently. To repair Interskol perforators with your own hands, you need to have the skills of a locksmith and knowledge in electrical engineering in the amount of high school.

And always remember to comply with safety rules.

Each tool has a corresponding identification plate. For example: puncher Interskol P-18 / 450Er. It stands for:

the letter P indicates that the tool belongs to the family of punchers;
number 18 indicates that a drill up to 18 mm in diameter can be used with this rock drill;
the number 450 indicates the power of the hammer drill in watts.

The line of Interskol perforators with SDS-plus cartridges is represented by 13 models: P-18 / 450ER, P-20 / 550ER, P-22 / 620ER, P-24 / 700ER, P-24 / 700ER-2, P-26 / 750EV, P-26 / 800ER, P-26 / 800ER-2, P-28 / 800EV, P-30 / 900ER, P-30 / 900ER-2, P32 / 1000E, P-32 / 1000EV-2.

Interskol perforators with SDS-max cartridges are represented by the following models: Interskol P-35 / 1100E, P-35 / 1100EV-2, P-40 / 110EV-2, P-45 / 1100E, P-50 / 1200E.

There are other models of Interskol perforators on the market: Interskol P-600 ER and Interskol P-710 ER. These models were produced at the beginning of the development of Interskol production.

Among domestic users, the most common models are Interskol P26 / 800ER, P30 / 900ER, P710 / ER perforators.

Disassembly of Interskol punchers of models P18, P22, P26, P28, P30, P600, P710

The principle of operation is the same for all rotary hammers.

The rotational moment from the rotor is transmitted to the barrel shaft and the working tool attached to it. At the same time, with the help of an oscillating bearing, popularly called "drunk bearing", the torque is converted into a reciprocating motion, which transmits a shock impulse to the working tool.

All Interskol perforators are assembled according to one general scheme and consist of the same blocks.

Conventionally, Interskol perforators consist of three blocks:

Impact unit reducer block.
Stator block.
Power supply and control unit.

Repair of Interskol perforators should begin with a study of the tool diagram, preparation of tools and a workplace.

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

For convenience, we will divide the presented perforators into groups.

In the first group we will include perforators Interskol P-18, P-22, P-24, P-26, P-30.
In the second group, we will consider the disassembly of Interskol P-600 and P710 perforators.

Design features of the keyless chuck type SDS-plus

Let's start with the differences in the keyless chuck attachment design.

The principle of disassembling keyless chucks is practically the same for all rotary hammers.

Interskol rock drills use a keyless chuck type SDS-plus. To work with the Interskol perforator, it is necessary to use a tool with an SDS-plus shank.

Dismantling the keyless chuck

Dismantling the keyless chuck, consider the example of the Interskol P-26 / 800ER perforator.

Having installed the perforator on the back of the handle, it is necessary to remove the protective sleeve pos. 1, remove the washer pos. 2 and take out the locking ring pos. 3.

Next, the washer (pos. 4) and the retaining ring (pos. 5) are removed. At the next stage, the push sleeve, pos. 6, is removed.

To release the locking ball, pos. 8, press the special washer, pos. 9. Remove the ball, take out the conical spring, pos. 10.

The design of the keyless chuck perforator Interskol P-30 / 900ER contains fewer parts. But the disassembly procedure remains the same.

Keyless chucks for Interskol P-600ER and P-710ER perforators are practically the same and are disassembled in an identical sequence.

Details of the keyless chuck of Interskol P600ER and P710ER perforators are dismantled in the following sequence:

a special ring is removed, pos. 1;
the releasing sleeve pos. 2;
the special ring pos. 3 is pressed and the ball pos. 4 is taken out;
the spiral spring is removed pos. 5.

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

Dismantling the mode switch knob in the Interskol P-26 perforator

Having tilted the puncher to the side, turn the mode knob pos.28 counterclockwise until it stops while pressing the button pos.26. Remove the handle from the punch body.

Never switch the mode knob while the rock drill is running.

Dismantling the block of the percussion mechanism of the perforator Interskol P26 / 800ER

Diagram of the percussion mechanism of the Interskol P-26 / 800ER perforator

Most of the differences are in the design of the striking mechanism.

The impact mechanism consists of several units:

percussion barrel;
intermediate shaft;
strikers and drummers;
a piston sleeve;
friction bearing.

The percussion mechanism in Interskol perforators works on the same principle. The differences are in design features.

Dismantling of the percussion mechanism of the Interskol P-26 / 800ER perforator

In the Interskol P-26 / 800ER perforator, the percussion mechanism consists of the following units:

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

Disassembling the instrument receiver

The tool receiver, pos. 12, is disassembled after removing the keyless chuck parts from it.

At the first stage, four rollers, pos. 11, are carefully removed. Then the receiver is removed from the body, pos. 18, in which the needle bearing, pos. 20, is inserted.

The barrel poz.36 is attached to the needle bearing.

Remove the tool receiver from the barrel.

From the tool receiver it is necessary to remove the industrial mass pos. 16, the bushing pos. 15, the collar pos. 14 and the rubber sealing ring pos. 13.

Dismantling the barrel of the percussion mechanism

The barrel of pos. 36 is removed from the inner housing of pos. 18 after the gear housing is separated from the stator housing. To do this, unscrew four screws pos. 30 from the gearbox housing.

Then unscrew the three screws, pos. 85, on the handle, pos. 86. Having removed the handle, turn the body of the brush holder, pos. 81. until the moment when it can be pulled out of the case.

Now the gearbox housing and the stator housing can be easily separated using a screwdriver, which pushes one of them at the docking point.

The barrel can be easily removed from the box pos. 53 (inner body).

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

In the barrel cavity there is a catcher body pos. 40, firing pin 45.

Dismantling catchers, strikers

Dismantling the safety catcher pos. 40 consists in separating the shock absorber pos. 41, the striker catcher pos. 42, the safety catcher cover pos. 43 and the retaining ring pos. 44.

In the piston poz.47 inserted striker poz.45, which must be removed.

From the striker, pos. 45, the O-ring, pos. 46, is removed.

From the ears of the piston, pos. 47, it is necessary to separate the pin, pos. 48, and remove the two rings, pos. 49.

Dismantling the intermediate shaft

To disassemble the intermediate shaft pos. 57, you need to pull it out of the inner housing.

From the shaft, pos. 58, remove the switch leash, pos. 55, the spring, pos. 56.

On the other hand: remove the support bush pos.65, spring support pos.64, spring pos.63, combined toothed wheel pos.62.

Dismantling of the percussion mechanism of the Interskol P710ER perforator

The design of the percussion mechanism and the order of disassembly for the Interskol 710ER perforator is somewhat different from the perforators of other models.

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

Diagram of the percussion mechanism and the intermediate shaft of the perforator Interskol P710ER

Perforator Interskol 710ER is a rotary-impact machine. Consists of an electric drive and an actuator. A collector motor is used as an electric drive. The actuator is a combination of a compression-vacuum type impact mechanism and a rotary mechanism. The reciprocating motion is transmitted by a rolling bearing.

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

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

Dismantling of the electrical part of the Interskol perforator

The electrical part of the Interskol rock drill consists of three main parts:

rotor;
stator;
control circuits with carbon brushes.

The procedure for disassembling the electrical part of all models of Interskol perforators is practically the same.

Electrical diagram of the Interskol P-26 / 800ER perforator

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

Disassembling the stator

To disassemble the stator pos. 74, it is necessary to pull out the protective diaphragm pos. 72 from the housing pos. 77, which closes the stator from dirt and dust.

Unscrew the two screws, pos. 73, and pull out the stator, pos. 74. To facilitate the removal process, it is enough to knock on the end of the stator cover with a wooden hammer or block.

Terminal strips pos. 75 can be removed from the stator. This is done in order to check the quality of the contacts from the stator to the brush holder.

Disassembling the rotor

The rotor is disassembled when it is necessary to replace the collector, bearings, rewind the windings.

It is possible to separate the rotor from the hammer assembly by releasing two screws, pos. 68, and removing the shield, pos. 67.

From the rotor, pos. 69, it is necessary to remove the bearings pos. 66, 70, the damping sleeve pos. 71. The bearings can be easily removed with a puller.

Disassembly of control circuits and dismantling of carbon brushes

The basis for controlling the Interskol perforator is a switch pos.87 and a reverse lock pos.90. Using the combined button, the perforator can set the speed of the electric motor.

To get the brushes pos. 83, it is necessary to remove the brush holder pos. 81. It can be removed by turning it counterclockwise by 90º. After freeing the brush holder, it is easy to get the carbon brushes.

The scheme of Interskol P710ER and P600ER perforators has its own characteristics: