Instructions for assembling the Hitachi dh24pc3 perforator with your own hands

The Hitachi DH24PС3 can be assembled by any user with the skills of a locksmith and knows the general rules for working with electrical appliances.

Before assembling the punch, prepare the workplace, a set of new rubber products, the necessary lubricants, tools, tester.

Assembly of the perforator is divided into several stages.

Assembly of the mechanical part of the perforator Hitachi DH24PC3

The assembly of the mechanical part begins with the assembly of the hotel units entering the block.

Assembling the intermediate shaft of the perforator

The intermediate shaft is part of the perforator gearbox and performs two functions:

- transfers the torque to the barrel of the perforator;

- converts the torque into a reciprocating impulse due to the operation of a drunken bearing.

The shaft pos.52 is put on a drunk bearing pos.53, helical gear, pos. 54, metal ring pos.55 and bearing pos.56.

The Hitachi DH24PC3 rotary hammer uses Japanese-made bearings of type 626VVM.Dimensions of the bearing 6x19x6.It is possible to replace the Russian analog of type 26.

Drunken bearing, helical gear, bearing lubricated. From domestic analogues it is recommended to lubricate Nanohim, labeled as PM or Nanotech under the Metallplak Electra labeling.

On the other hand, the clutch clutch pos. 51, the clamping spring pos. 50, the spur gear pin 49, the mode switch lever pos. 48, the metal sleeve pos. 47 are mounted on the shaft.

The assembled shaft is inserted into the inner hull of the puncher pos.

Assembling the percussion hammer barrel

To begin assembling the percussion hammer mechanism, it is necessary to press the assembled barrel of the perforator into the body of the mechanical block.

The barrel of pos. 24 is fitted with a straight gear pin 25, a helical spring pos.26, a steel washer

M30 pos.27, fixing ring pos.28.

In the body of the mechanical unit, it is necessary to press the bearing in pos. 15, into which the barrel is in turn pressed.

The body of pos. 10 is inserted:

- oil seal pos.12;

- hub of the impactor pos.13;

- felt seal pos.14;

- the bearing 6904DD pos. 15 is pressed;

- metal restrictive bushing pos.16 is inserted;

- all is fixed by a lock ring pos.17.

For pressing the bearing, use a press, or a hand-held wooden board.

The outer race of the bearing is lubricated prior to installation.

The body pos. 10 ends against a cylindrical gasket made of aluminum, copper or wood.

The bearing is inserted into the body and is pressed using the adjustment and the hammer. When squeezing, skews are not allowed.

The collected barrel is inserted into the body and press in, taking care.

Pressing is performed using a press or vice with a simple tool. As a tool, use a wood or soft material tile.

Assembling the strikers

Two types of strikers are used in the puncher.

Striker pos.29 and striker poses 37. Assembling strikers is to put on them sealing rubber rings with mandatory lubrication. Of domestic lubricants best suited lubricant Tsiatim-224 in accordance with GOST 9433-80, inert to rubber products.

At the piercing poz.29, except the rubber sealing rings, the hammer mechanism holder pos. 31 is put on, the cushion damper pos. 35, the locking ring pos.36.The ring fixes the details on the striker.

At the pegs pos.37.the rubber sealing ring pos.38. The boom is lubricated with Ciatim-224 grease and inserted into the piston sleeve pos. 39.

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Assembling the piston sleeve

To assemble the piston sleeve, it is necessary to insert a piston pin pos. 42 into its ears, after inserting the steel washers M30 pos. 43.

Assembling the shock mechanism

Remains in the inner casing pos.41 insert the assembled intermediate shaft pos.52, articulate the shank of the drunk bearing pos. 53 and the piston pin pos.42, inserted in advance into the ears of the piston sleeve pos.39.

transmission unit. When assembling the barrel, when inserting strikers into it, be sure to lubricate the inner surface of the piston.

The entire assembly process should be accompanied by the application of the types of lubrication recommended by the perforator manufacturer or the corresponding domestic lubricants.

Setting the mode switch knob

By connecting the mechanical part and the stator unit, you can proceed to setting the mode switch knob.

The knob of the mode switch pos.

To insert it into the housing and fix it there, it is necessary: ​​

- insert the spring in pos. 19;

- insert the locking red button pos.18;

- to put on a rubber epiploon pos.20.

Insert the knob clockwise into the body in the "Bump" position, turn back 15 degrees until it clicks. The handle was fixed.

Assembling the quick-action chuck

The Hitachi DH24PC3 perforators are equipped with SDS-plus quick-action chucks.

The cartridge is assembled at the last stage of the perforator assembly.

. On the protruding shaft of the barrel, the sealant pos. 7, the conical spring pos. 6, the washer pos.

The next step is to insert the locking ball pos. 23A.Article of the ball 335300.

The metal ring pos. 4 is put on the shaft. The cartridge is closed by the lid of pos. 3, everything is fixed with the locking ring pos.2, the front protective cover pos.1 is put on the end of the shaft.

The mechanical part of the Hitachi DH24PC3 perforator is assembled.

Remember! When assembling the mechanical part, observe the rules for the application of lubricants, use only those recommended by the manufacturer or domestic, specially designed for perforators.

Assembling the electric part of the perforator Hitachi DH24PC3

We divide the assembly of the electric part of the perforator into stages.

Stator Assembly

The repaired or new stator pos.65 is installed in the stator housing pos. 68 and fixed with fixing screws M4 × 50 pos.64.Article stator 340635F.

The stator is closed at the top with the impeller guide of pos. 63.The stator wires are output to the control button pos. 70B.

Assembling the rotor

The rotary hammer uses the 220-230V motor armature, article 360720E.

New or repaired rotor pos 62 is installed in the socket in the internal casing pos.41, with a felt pad, pos. 57, previously applied to the rotor shaft, sealing ring pos. 58, sealing gasket pos. 59, bearing 608DDM, item 60and a steel gasket pos. Dimensions of the bearing 8x22x7, Russian analogue 80018.

The assembled rotor is inserted by the helical gear into the mechanical unit of the perforator.

It remains to connect the mechanical unit and the stator housing.

When inserting the rotor into the stator housing, remove pre-carbon brushes with the brush holders.

Assembling the control circuits

Control circuits are a circuit that allows smoothly start the punch, adjust the frequency and speed of its operation.

Rotary Controller Circuit Diagram The Hitachi DH23PC3 rotary hammer uses carbon electrodes of pos. 74, 77 with the hitchhiking. Hitchhiking does not allow you to turn on the punch, if the brushes are worn out more than the allowable rate.

Carbon brushes with a hitchhiking have an article number 999072, at the usual brushes of the article 999041. Carbon brushes in the puncher body are fixed with brush holders pos.75, article 955203.

In some modifications, the throttle pos. 69 and diode contact pos.

The interference suppression capacitor is included in the power supply circuit.

The rotary hammer uses a push button switch 220V( OLD 331454/324536).Article 335796. Switch type TG801TSBU-1.

The control circuit parts are mounted inside the stator housing handle.

Connect the punch to the alternating current network, check its operation in all modes. Ensure the smoothness of the adjustments and the operation of the puncher without unnecessary noise.

That's all!