Surface grinder angular bearings. My ball are falling out. Part 3

What are the features in the design of the grinding machine of the Sparky brand

Data of corner grinder differs in an excellent ratio of and quality, have a device that regulates the frequency of twisting, there is an antiviral hilt in stock.

The SPARKY sales manufacturer produces corner grinders in three classes:

Some features that Sparky have angular grinders have:

replace, bearing, corner, grinder, replacement, bearings

How to disassemble the corner grinder and make the replacement of the bearing on your own?

This is quite possible to do at home without contacting service centers or repair shops. Just follow my recommendations that will be given in this article.

Most often, work with corner grinding occurs in a fairly dusty environment. Dust is often the cause of various malfunctions. When this tool breaks, it is always not enough for economic work. So you do not have to delay the repair.

Rearing sliding bearings

The most important “vulnerability” of the corner grinder are the bearings are considered to be precisely. And although there are only three of them in the entire structure, it is these elements that often determine mechanical breakdowns. So, the bearings have a negative impact:

  • Use in maximum mode;
  • Too fast rotation;
  • Insufficient volume of lubricant fluid;
  • Getting particles of dirt and dust;
  • Untimely/incorrect replacement of coal brushes or their deformation.

The design of any variety of Bulgarians provides for the operational replacement of bearings.

replace, bearing, corner, grinder, replacement, bearings

Malfunctions related to deformation or wear of this element imply the occurrence of extraneous noise.

Damage is detected by checking the backlash of the shaft, that is, by means of swaying to the sides when installing the tool. If there is a backlash, then a sliding bearing must be urgently changed.

In order to repair the bearing, it must be pulled out of the case and removed from the gearbox.

This detail should be dismantled using a special puller. The bearing can be removed from the rotor using the folk methodology. To do this, you need to insert metal strips or keys in the vice. The bearings should be laid on them and with the help of a massive hammer and metal instructions to be bred from the shaft axis.

Reducer Rear

The level of wear of the gear of the gearbox can be checked by the contact spot. The gearbox is cleaned in advance from the old lubricant. You need to apply a special blue to the smallest gear of the details, and then turn it out. Next, it is necessary to remove a large gear with oblique cloves and look with a magnifying glass at the contact spot, which ideally should be at least fifty percent of the clove surface. Otherwise, the gear will need to be replaced or change the profile of the clove. However, this breakdown can be eliminated only by a master with extensive experience. Often cut, licked or deformed gears are subject to complete replacement.

In the process of repairing the gearbox, the most time.Consuming work is considered to be the dismantling of the gear and support bearing.

The disassembly procedure itself begins with opening the cover and turning off the stator and rotor. The latter is clamped in a vice in order to unscrew the nut that attaches a small gear.

A spindle bearing is pressed in the gearbox. In order to get it, sometimes you need to dismantle the lock ring.

If the bearing is very deformed, it is easier to get it with a screwdriver.

A large spindle gear can be fixed in several ways:

We collect a tool with new details

After disassembling the tool, the necessary replacement of all destroyed parts, we will collect back. Make sure at hand of all tools, lubricants, clean rags to bring the last strokes.

The entire previous lubricant must be removed and replaced with fresh. Use lubricants of trusted manufacturers, buy them in specialized stores.

First of all, it is necessary to assemble the rotor. Need to press the bearings, install the impeller. Before that, carefully lubricate the bearings. Using a wood entry, put them on top of the shaft.

Close the collector bearing with rubber protection. This is the same scheme on how to assemble a rotary shaft.

Next, collect the gearbox back. This process begins by installing the gearbox on the rotary shaft housing. When the shaft is already inside the case, put the leading gear on it, then the puck and the fixation nut.

Now install the gearbox with the shaft located in it, inside the stator body. It is necessary to press both buildings after the collector bearing is already in the nest. Next, check whether the rotor is easy to rotate on the bearings.

The final step will place the lid to where it was. Check how the spindle shaft rotates. If you have determined that the rotation is light even from the movement of the hands, you can start screwing the screws. They carry out the cover of the cover to the body. Before that, lubricate all the screws using the sealant.

Tips that you will undoubtedly come in handy

If you have an angle grinding machine of the Sparky brand, then you have a quality tool. And now, you know how to make repairs and replacement of worn bearings.

We collect a tool with new details

After disassembling the tool, the necessary replacement of all destroyed parts, we will collect back. Make sure at hand of all tools, lubricants, clean rags to bring the last strokes.

The entire previous lubricant must be removed and replaced with fresh. Use lubricants of trusted manufacturers, buy them in specialized stores.

First of all, it is necessary to assemble the rotor. Need to press the bearings, install the impeller. Before that, carefully lubricate the bearings. Using a wood entry, put them on top of the shaft.

Close the collector bearing with rubber protection. This is the same scheme on how to assemble a rotary shaft.

Next, collect the gearbox back. This process begins by installing the gearbox on the rotary shaft housing. When the shaft is already inside the case, put the leading gear on it, then the puck and the fixation nut.

Now install the gearbox with the shaft located in it, inside the stator body. It is necessary to press both buildings after the collector bearing is already in the nest. Next, check whether the rotor is easy to rotate on the bearings.

ANGLE GRINDER REPAIR / How to replace the Ball Bearing

The final step will place the lid to where it was. Check how the spindle shaft rotates. If you have determined that the rotation is light even from the movement of the hands, you can start screwing the screws. They carry out the cover of the cover to the body. Before that, lubricate all the screws using the sealant.

Features of the structures of foreign manufacturers Corner grinder

In this chapter, we consider the design features of the Bulgarians produced under the brands Bosch, Hitachi and Makita, as well as the repair of the corner grinder with your own hands.

Repair Corner Grindmine Bosch

Bosch corner grinder is a reliable tool that does not cause special trouble to the user. But not every user refers to the tool correctly. Repair Corner Grindmine Bosch is most often associated with the replacement of bearings.

Structurally, all Bosch corner grinders are made according to the same scheme. Spindle shaft pos.25 is pressed into a driven shifting gear posture.26 and is based in the housing of the gearbox pos.821 on a needle bearing pos.51.

When the bearing is destroyed inside the body, the bearing cloth remains, which is not easy to get. We recommend two methods of dismantling the clip of needle bearing. They are described in the section “How to remove the needle bearing”.

With wear or licking teeth, the pairs of gears are subject to replacement both and only steam. When dismantling the gears, remember that the lead gear is attached to the rotor shaft on the thread, and the left is fixed and fixed with a nut. The led a large braid gear poses.26 was applied to the shaft of the spindle pos.25.

Repair Corner Grindmine Hitachi

Hitachi corner grinder gained particular popularity among Russian consumers. And this is natural. There are practically no artisanal fakes Hitachi on the market. Simplicity of design allows you to easily repair any complexity.

Hitachi corner grinder has increased reliability and infrequently falls on the table of repairmen. The main reason for the Hinachi angular grinding grinder is a breakdown of the gearbox, namely, the production of gears of gears.

The gearbox of the corner grinder is disassembled simply. To disconnect the gearbox of the poses.3 from the stator case pos.37, you need to free coal brushes.

Twist four screws poses.1 attaching the gearbox body and stator body. Discharge the gearbox and the stator body. The gearbox body will disconnect together with the rotor pos.Eight.

replace, bearing, corner, grinder, replacement, bearings

To remove the lid of the gearbox pos.23, you need to twist four screws poses.24. Vedicated scooter gear poses.33 is fixed on the shaft of the spindle pos.26 using the dowel poses.25 and settled by a puller. Bearing pos.21 is removed by a puller.

Repair Corner grinder Makita

A feature of the Makita Bulgarians is a fast.Free protective casing pos.Nineteen.

Makita corner grinder of the company Makita is more likely to be repaired. But the reason is the high percentage of fakes flooding the Russian market.

Real Makita is a reliable, durable tool. But, like all angle grinders, it suffers from the failure of the gearbox, its gears.

To replace the gear of the gearbox, they resort to if they are jammed or destroyed.

To repair the angular grinding grinder Makita 9069 or Makita 9558 HN, it is necessary to disassemble the corner grinder.

If the gearbox is unprofitable, and this is determined by the appearance of the back of the spindle shaft, jaming the gearbox, slipping the led gear, then the gearbox should be disconnected from the stator body. Free the coal brushes poses.35, twist four screws poses.10 and disconnect the gearbox body from the stator case pos.37.

At the next stage, unscrew the four screws poses.18 holding the lid of the rotor pos.Fifteen. Leading gear pos.14 is removed using Persian. Leading gear pos.43 is attached due to the key connection and fixed by the nut pos.42. Rotor shaft bearings.3 are removed using pullers.

Dismantling of corner grinder for prevention

I would recommend to disassemble your grinding machine not only for the repair and replacement of worn parts, but also for regular prevention. This will significantly extend the operation time of the electrical device. Any mechanism works longer, better if proper care is established behind it. The angular grinder is no exception.

Disassemble the tool, as described in this article. Only now you are doing this not for repair, but in order to carefully clean and lubricate the tool that is necessary in the farm.

The most ideal option for cleansing is to use compressed air and nozzle for purging in compressors. You will have to take into account that the corner grinder is cooled through the distance in the middle of the anchor and the stator.

Excessive amount of construction dust, various particles on the engine. All this is required to clean from time to time.

And if you have disassembled the corner grinder for prevention, apply fresh grease to the details, as previously said.

As you can see, the maintenance and repair of the corner grinder is not such a difficult task!

| Denial of responsibility | Contacts |RSS