Vehicle power steering systems
Vehicle power steering systems are subject to treatment. The purpose is restorative repair and wear protection of the power steering hydraulic system components without disassembly, under normal operating conditions.
Units covered by the method
08Method
What is treated
- Vehicle power steering systems that have no components or mechanisms with limiting wear or mechanical damage (cl. 8.1)
When treatment is not performed
- Power steering systems having components or mechanisms with limiting wear or mechanical damage are not subject to treatment
Preparation
- Before starting the treatment, perform diagnostics of the power steering hydraulic system (cl. 8.2)
- Pay attention to the alignment of the belt drive pulleys; misaligned pulleys cause increased noise of the pump drive belt
- Eliminate working fluid leaks
- If the oil filter of the filler reservoir is contaminated, replace it
- If the oil level in the power steering reservoir is low, top up the oil to the required level in accordance with the power steering operating manual
- Heavily contaminated hydraulic fluid in the system must be replaced
What is measured before and after
| Parameter | Instrument | How and when |
|---|---|---|
| Alignment of the belt drive pulleys | — | During diagnostics before treatment; an indirect sign of misalignment is increased noise of the pump drive belt |
| Oil level in the power steering reservoir | — | Before treatment; if the level is low, top up the oil in accordance with the power steering operating manual |
| Volume of the power steering oil system, l | — | Determined before adding the gel — the consumption rate is selected from table 8.1 on its basis |
What the reports on these components showed
- Increased electric power consumption1 case
- Loss of compression2 cases · median 18 %, 4 values
- Increased fuel consumption2 cases · median 12 %, 2 values
- Increased clearances and backlash2 cases
- Oil pressure drop3 cases
Consolidated register of the evidence base →
Dosage rates
| Compound | Rate | How and when |
|---|---|---|
| XADO revitalizant gel for power steering | 1 tube of 9.0 ml or 1 aerosol can of 10.0 ml | For a power steering oil system volume of 1–2 l; treatment schedule — single application (table 8.1) |
| XADO revitalizant gel for power steering | 2 tubes of 9.0 ml or 2 aerosol cans of 10.0 ml | For a power steering oil system volume of 2–5 l; treatment schedule — single application (table 8.1) |
| XADO revitalizant gel for power steering | 3 tubes of 9.0 ml or 3 aerosol cans of 10.0 ml | For a power steering oil system volume of 5–8 l; treatment schedule — single application (table 8.1) |
Treatment stages
- Add “XADO revitalizant gel for power steering” into the power steering reservoir in the quantity specified in table 8.1
- Turn the steering wheel in both directions to the stops5–10 minutes
- Operate the power steering hydraulic system in normal modeFull treatment cycle — at least 50 operating hours or at least 1500 km of mileage
Points to watch
- A contaminated oil filter of the filler reservoir may reduce the effectiveness of revitalization
- A characteristic sign that revitalization has begun is an improvement in the operation of the steering mechanism (reduced steering effort, crisper operation, less noise) from the very first kilometres of mileage
- If after 100–200 km of mileage no improvement in the operation of the mechanism occurs, the most likely cause is erroneous diagnostics
Compounds for these units
- Revitalizant gel for hydraulic systemsHydraulic systems of industrial and special equipment, pumps, motors and valves; gearboxes with oil filtration.
Reports on this unit
- Gavrilenko V.D. Farm Enterprise · 2008↑ 12.5–24% — compression across the cylinders, 25–28 → 31–32 kgf/cm²
- JSC “JV Rosava” · 2004↑ 7.7–37.5% — engine compression by cylinder, 16–19.5 → 21–22 kgf/cm²
- MTA Company, Plovdiv · 2004↑ 2bar — oil pressure in the machine hydraulic system, 17 → 19 bar
- NII Gidroprivod JSC, Kharkiv · 2001↓ 3.4× — pressure drop across the hydraulic motor, 12 → 3.5 kgf/cm²
- AS AKRONTO · 2002↑ 20% — working pressure of the power unit under load, 100 → 120 bar
- SIA “SimSS AUTO” · 2001↓ 3.6× — oil leakage through the precision pairs, 21.7 → 6 l
Source: Instructions for the use of XADO revitalizant gels IE-24.6-25612000-005-2008, pages 16–17.