In detail: power steering gazelle DIY repair from a real master for the site my.housecope.com.
The purpose of the power steering is to provide more comfortable steering wheel control. Today, the power steering system is installed on the Gazelle and on many modern cars. You can learn more about the device, malfunctions and unit repair at home from this material.
Both the electric power steering on the Gazelle and the power steering are designed for more comfortable steering. First, let's take a look at the power steering device on the Gazelle. We are talking about both the Gazelle Business with a 405 engine and other models of this line.
So, what is the device of the system:
Power steering pump. This element of the circuit ensures optimal circulation of the consumable in the system, as well as pressure.
Steering gearbox with distribution element. This device allows you to provide an air flow necessary to direct the oil into the desired cylinder cavity or back into the tank.
Another component of the system is the cylinder. With its help, the conversion of the pressure of the consumable material into the movement of the piston, as well as the rod, is ensured.
The consumable itself, that is, oil. The fluid transfers the force from the power steering pump to the cylinder. In addition, the oil provides lubrication for all rubbing elements of the device.
Like any unit, the power steering can fail from time to time.
The main malfunctions and methods of their elimination are given below:
The system drive strap is worn out or is not tight enough. In this case, the belt is either changed or its position is adjusted.
The steering wheel turns poorly, this can be due to both wear of the strap and a low oil level in the system, a reduced number of engine revolutions, a clogged filter. In addition, the problem may be low pump pressure or an air lock in the lines. Depending on the problem, the solution may be to add consumables, adjust the idle speed, change the filter, or repair the pump. It will not be superfluous to check the tightness of the connections.
Mechanical failure in the operation of the steering system, you need to diagnose it.
If the pump does not work, you need to either repair it using a repair kit, or change the oil seals.
Steering elements are worn or the drive geometry is broken. Defective parts should be replaced.
If the hydraulic fluid is discharged through the relief valve, locate the leak and fix the problem. The reason may lie in the inoperability of the pump, you should check its working pressure.
Damage or wear of tires, it is necessary to identify the faulty elements and replace or repair them.
Video (click to play).
As you might have guessed from the previous paragraph, if the power steering on the Gazelle does not work, then this is due to the pump. To repair this element in a car with your own hands, you will need to purchase a repair kit in advance. You can buy it at any thematic store. The main difficulty in repair is that the pump is not collapsible.
The repair procedure is carried out as follows:
Dismantle the pump and disassemble in accordance with the instructions that come with the kit.
Clean the device from dirt, it is possible that there will be kinds of reasons for the failure on the case. Usually the problem lies in the wear of the oil seal, then it will be necessary to change it. When installing a new oil seal, the roller must be modified.
The gland can be installed in several ways. You can build a special recess on the outer part of the element, drill a corresponding threaded hole in the wall of the device, and then fix the gland with screws.You can also fix this part in the middle of the pump using the specially bent body ends.
When the replacement of the element is completed, it will be necessary to reassemble the system in reverse order. Please note that after the repair is completed, when the power steering is operating, you may hear an uncharacteristic noise for this. This is a grinding in of a new oil seal, so you should not worry about this. When the repair is over, it is necessary to change the oil in the system.
To make it easier for the driver to control the vehicle, in modern cars, a hydraulic booster is installed on the steering column. One of the main elements of this mechanism is a pump that pumps hydraulic fluid through the power steering system. During operation, it is exposed to heavy loads, therefore, it is periodically necessary to repair the power steering pump.
You can change this unit with your own hands. It is even possible to replace a failed bearing. In this case, the power steering pump repair kit will come in handy, which can be bought at any car store.
Before deciding to carry out repair work, it is necessary to check the presence of liquid in the tank, as well as the compliance of its brand with the approved one for use on this machine. Often, the cause of the signs of malfunction is the appearance of air locks in the system. Therefore, if you suspect this, it is necessary to pump the hydraulics, removing all air plugs. In this case, the efficiency of the power steering can be fully restored. If, when checking the quality of the working fluid, it is found that it does not meet the standard, it is necessary to change it to the fluid of the desired brand. In the case when a decision is made to repair the power steering pump, it is required to prepare a workplace and the necessary tools, as well as materials for carrying out the work:
you need a key for "12", as well as heads for "14" and "24";
you will need a snap ring puller;
prepare in advance two copper washers, a gasket for the rear casing, two O-rings and an oil seal, they can be replaced by a power steering pump repair kit;
be sure to have a bearing marked "6202" and an outer diameter of 35 mm;
to pump oil out of the tank, you need a large syringe and a container;
clean the workbench and cover it with clean cardboard to disassemble the pump;
prepare fine sandpaper and a cleaning cloth.
In order to remove the power steering pump and repair it with your own hands, you need to perform the following steps.
Slightly loosen the axle bolt that secures the pump unit to the bracket using the hole in the pulley. Loosen the tensioner retaining nut completely and remove the belt.
Using a syringe, pump out the hydraulic fluid from the reservoir. Turn the steering wheel right and left until it stops so that the oil is completely out of the system, do this several times to completely clean the pipelines.
Loosen the clamp on the hose that runs from the expansion tank and remove this line.
Remove the bolt that secures the high pressure hose from the pump to the system.
Remove the axle bolt that secures the pump to the bracket and replace it with a screwdriver or a metal rod of a suitable diameter in order to lock the pulley. Then unscrew the nut that secures the pump pulley.
Pull the released power steering pump unit up and put it in a specially prepared place. Remove dirt and oil from the unit housing.
Remove the bearing retaining ring with a puller.
Remove the rear cover mounting bolts. Gently pry it off with a small screwdriver and remove it, making sure that the rotor blades do not fall out of the housing.
Take out the blades and put them on pre-prepared numbered pieces of paper so as not to confuse anything during assembly. Attention! Remember the position of the assembled blades. When installed in a housing, the rounded part of these blades must be turned outward.
Remove the plate and all parts underneath.
Drive out the shaft by tapping gently with a screwdriver.
Press the bearing off the pump shaft.
Change the unusable bearing for a previously prepared one.
Check the parts of the pump set for defects and wear. Clean surfaces from dirt and roughness. Experts say - simple cleaning of internal parts reduces gaps and allows you to extend the operation of this unit without replacing any parts.
Reassemble in reverse order. It is imperative to change the oil seal, O-rings and washers for new ones prepared in advance.
If it is difficult for you to fix the power steering pump with your own hands or there is no time for this, then it is possible to replace the power steering pump with a new one. This will significantly reduce the repair time. Also watch a video on the topic: