How to repair washing machine shock absorbers: a step by step guide
In matters of restoration of technical capabilities and performance of household appliances, we are accustomed to rely on service centers. However, not all failures require the mandatory intervention of the master.
Many minor problems are effortlessly resolved with their own hands. One of the typical examples is the repair of shock absorbers of a washing machine, which can be carried out independently.
Typical causes of breakdowns
Depending on the settings, the brand of the unit and the functions performed, the erasers perform per minute from 700 to 1800 turns. Such an impressive load, and even with the application of a rotating force, is capable of easily disabling contacting parts and loosening components and connections.
If there were no shock absorbers designed to dampen the vibration of the drum and the tank containing it during the spin cycle,to repair the machine would have to after each next "session" of washing. Their purpose is no different from the functions of similar car devices.
Shock absorbers, coupled with outboard springs, exclude direct contacts of the drum of the machine with its metal body, steel and plastic parts. In the form of peculiar supports, they are located under the main rotating organ of technology, which is fixed in the upper part of the unit with suspension springs.
During the operation of the washer, the supports and the springs are unstable, due to which the tank rotating at a breakneck speed may slightly shift relative to its position at rest. Those. These devices, making spring movement, provide the drum with the opportunity to perform the rotations according to the status without transferring the load to the adjacent parts and assemblies.
Constructive components of the washing machine, protected from vibration by shock absorbers, serve much longer, less often fail. True, the shock-absorbing devices themselves in the period of the assigned task gradually lose their original strength.
Older fixtures may require repair or replacement at an extremely inopportune moment, for example, before an evening wash, the time of which does not allow calling the master on an urgent basis. Or his arrival will have to wait quite a long time. It is here that we will need information about the specifics of the recovery of shock absorbers and their device.
The device spring shock absorbers
One of the most common types of shock absorbers for washing equipment has a so-called spring-piston design. If to state in an exaggerated way, then this is a metal cylinder, at the top of which there is a polymer sleeve. It directs the movement of the stem to the shock absorber.
The upper part of the stem "sharpened" for planting polymer liners and gaskets made of rubber, through which it is connected to the drum. A piston with a gasket soaked in a non-drying lubricant is attached to the stem base. This lubricant is needed to increase the friction force when the piston rod moves along the cavity of the steel cylinder.
The shock absorber spring-piston type includes a number of sequentially repetitive actions:
- With sharp fluctuations, the shock absorber rod is driven in a linear motion.
- The piston driven by the rod moves through the cylinder cavity.
- Impregnation prevents the piston from slipping without an appropriate force.
- When the pressure decreases, the rod returns to its original position.
- When an effort arises, everything repeats.
In order that the air in the cylinder does not create additional resistance, the piston is perforated. When you press on it, a possible airlock easily comes out through the holes made through.
Of course, this mode of operation does not give reason to hope for the eternal preservation of the parts rubbing about each other in the original technical condition. At first, just play appears, then wear. And only one spring support can be damaged, and it happens in different versions of washing units from 2 to 4 pieces.
The principle of operation of shock absorbers of styralok of various brands is similar, but there are some constructive nuances. Their size, angle of inclination, location may differ; not in all models of washing equipment they are supplemented with springs holding the drum from above. Instead of a pair of hangers on top, small springs can be used, connected to the upper counterweight not far away.
In other embodiments, the layout of the tank, consisting of two parts, instead of shock absorbers from the bottom is supported by dampers. This constructive type is classical, because the structure of these devices is also very worth to understand. It is possible that this is your case.
Design features of dampers
Dampers in the device washing machines are also used in combination with suspension springs, but in their structure conditionally not too strong elements. In fact, it is also a steel cylinder, though not a piston rod moves through its cavity, but simply a piston with holes in the walls to remove excess air.
The damper piston is also equipped with a friction-type gasket. It is made of porous polymer and impregnated with a non-drying lubricant that creates additional friction. Gaskets in the damper may be two or even more, it all depends on the features of the device.
Both the metal cylinder and the damper moving along its cavity are provided with rubber bushings at the outer edges, by means of which the shock absorbing devices are connected to the bottom of the machine and to the tank.
Dampers are available in two versions:
- Collapsible. To repair this variety, it is often enough to simply replace the pressed gasket.
- Disposable. Their edges are rolled. Repair of this type is to replace the fixture.
The values of the maximum allowable force possible for a particular damping device are indicated on the bodies of dampers or shock absorbers. Typically, the load varies in the range of 50 - 150 newtons. When working in a manufacturer-guaranteed mode, the washing machine rarely exceeds these limits.
When buying a new damping device for replacement, do not exceed the characteristics indicated on the previous part. If 100 N is indicated on the case, then it is not necessary to be deceived about the fact that an element with 150 N will last longer, it is necessary to acquire exactly the same or with similar indicators.
Diagnostics of typical faults
Shock absorbing devices of washing machines belong to the mechanical part of household equipment. Their repair and replacement do not require fundamental knowledge in the field of electricians and even mechanics. So, even the intervention of an amateur will not be able to cause serious damage.
Note that unique technical documentation is issued for each model of the washing unit. Service receptions are usually authorized, devices are patented. However, there are methods for repairing shock-absorbing devices that are common to practically all types of washing machines, the specifics of which should be understood.
The appearance of typical damage to shock absorbers or dampers is signaled by a specific noise that occurs when the machine is in operation, by a knock too much inside its body.
When alarming sounds are detected, their condition should be examined, and for this purpose it is necessary to provide yourself with access to the checked devices. Depending on the model, it will be necessary to remove either the top panel, or the side panel, or the back panel.
Methods for diagnosing shock absorbers for washing machines depend on the type of load:
- From the front.If the application of force to the tank on top of the sealing cuff hatch loading folds are formed, will be replaced shock absorbers. By the way, you can notice a couple of folds while the machine is working with worn fixtures.
- With vertical.If at the application of force to the tank from above there is no resistance, and after interrupting the pressing the tank continues to swing like a pendulum, it is necessary to repair it.
In the course of diagnostics with top loading, it is necessary to pay attention to how much the tank sags when pressed, if the defect is indicated to occur. It would be nice to track the fact of sagging and its conditional value with a full load of the tank.
It is imperative to check whether there is at least some stock for the reciprocating movement of the tank of the washing machine being inspected. If it sags so that it simply does not have room for displacement during vibration, then a loud knock will appear during washing or spinning. And this is a sure sign of damage to the tank in the near future, and just unbalance.
In the normal technical condition of front-loading washers, cuff folds should not be observed at all, regardless of the function being performed. Note that the formation of a single crease on this rubber seal indicates that only one of the shock absorbers is damaged.
In normally functioning units with a top load, if the shock-absorbing devices are not damaged, after application of force to the tank from above and abrupt interruption of the load, i.e. retraction of the hand, the tank should smoothly return to its original place without excessive rocking and vibration.
Step-by-step repair guide
A washing machine with a damaged shock absorber or a worn damper seal, of course, can still work for some time without repair operations. But it should be remembered that without quenching the vibration, any extremely important parts and mechanical systems may split or become detached. The tank and piston assembly suffer the most.
Making a new gasket for the damper
If noise and heavy knocks are detected in a washing machine with dampers, it is enough to change the sealing gaskets. To do this, simply remove the fixture and, according to the plumbing rules, simply cut out new gaskets from a PCB or a piece of rubber of suitable thickness.
As the starting material for the manufacture of an excellent fit-out rubber brake pad for the car. Rubber thickness is better to choose according to the actual size of the gap between the tank and the shock absorbing device.
The simplest replacement of shock absorbers
In the overwhelming majority of situations, the styralok shock absorbers must be replaced entirely. Moreover, repairmen advise to change the entire kit, and not just one device.
In the statements of experienced masters there is logic. After all, in the working process all the shock absorbers wore out about the same. After replacing only one device during the washing / spinning period, the oscillations will be extinguished unevenly, which very soon will lead to breakage and abrasion of previously intact elements.
If the broken devices can be simply disconnected from the underside of the washing machine and from the tank, the work is carried out without much difficulty.
- We remove and remove the part of the body located on the side required for repair.
- We dismantle damaged and broken devices.
- Install the new kit and assemble the washer in the reverse order.
There are models in which the fastening to the tank is made so that dismantling is possible only with this element. Owners of such equipment will have almost complete analysis of equipment before repair. In any case, before proceeding with the repair, it is worth looking into the data sheet and become familiar with the mounting features.
Repair and replacement with tank removal
To replace the dampers in such machines they have to almost completely disassemble.
Having completed the disassembly of the case, proceed to removing the tank machine, at the same time we clean the parts from rust and calcium growths. In order not to get confused in the actions that need to be exactly repeated in the process of reassembly, we fix all the steps with the camera phone.
Works are performed in the following sequence:
- Remove the top panel of the housing.
- We dismantle the box for loading liquid products and powder.
- Remove the control panel along with its adjacent systems.
- Separate the springs holding the top of the tank.
- Remove the front panel and disconnect the functional units of the machine from the tank.
- Removing the tank with dampers.
- We make the replacement of devices, if possible, get rid of the replacement of gaskets or repairs.
- We make the assembly of the machine, strictly adhering to the sequence of analysis, only in reverse order.
In order not to make mistakes in the assembly process, it is advisable to photograph the course of disassembly.
For fasteners, it is better to make an ancillary "organizer" with several cells that can be signed along the way.
Conclusions and useful video on the topic
Roller with detailed instructions for replacing shock absorbers:
Video demonstration of repair of dampers of the washing unit:
Recovery Guide for Damping Devices:
Without excessive self-deception, we agree that for an inexperienced home wizard, the above described repair operations may become a problem. At first, the procedure itself will be frightening with uncertainty, but all this tension will only oppress the performer for the first time. Self-made repairs will certainly be a useful experience, on the basis of which later on all actions will be carried out easier and faster.