Steering System -- General Specifications
| Item | Specification |
|---|---|
| Lubricants | |
| MERCON® Multi-Purpose (ATF) Transmission Fluid XT-2-QDX | MERCON® |
| Power Steering Gear | |
| Turning effort | 31 Nm (23 lb-ft) |
| Turns lock-to-lock | 4 |
| Meshload | 0.9 Nm (8 lb-in) |
| Power Steering Purge Vacuum | 68-85 kPa (20-25 in/hg) |
| Power Steering Pump | |
| Flow | 10.6-12.0 liters/minute (2.8-3.2 gpm) Fluid @ 74°-80°C (165°-176°F) Engine at 1,500 rpm |
| Minimum capacity | 5.3 liters/minute (1.4 gpm) Fluid @ 74°-80°C (165°-176°F) Engine at idle Pressure at 5,171 kPa (750 psi) |
| Pressure | 1,034 kPa (150 psi) Fluid @ 74°-80°C (165°-176°F) Engine at 1,500 rpm |
| Relief pressure 15,200 and 18,000 GVWR | 9,000-9,900 kPa (1,300-1,430 psi) |
| Relief pressure 20,500 | 17,000 kPa (2,465 psi) |
Steering System -- General Specifications
TORQUE SPECIFICATIONS
| Description | Nm |
|---|---|
| Sector shaft lock nut | 26-35 |
| Sector shaft arm drag link nut | 77-103 |
TORQUE SPECIFICATIONS
Scheme 1
For additional information on the power steering oil reservoir (3A697), refer to POWER STEERING .
For additional information on the steering wheel and column assembly, refer to STEERING COLUMN .
For additional information on the power steering fluid lines, refer to POWER STEERING .
For additional information on the front wheel spindles (3105), refer to FRONT SUSPENSION .
For additional information on the power steering fluid cooler (3D746), refer to POWER STEERING .
For additional information on the power steering pump (3A674), refer to POWER STEERING .
For additional information on the steering gear (3504), refer to POWER STEERING .
For additional information on the steering linkage, refer to STEERING LINKAGE .
SPECIAL TOOL(S)
Scheme 2
MATERIAL
| Item | Specification |
|---|---|
| MERCON® Multi-Purpose (ATF) Transmission Fluid XT-2-QDX | MERCON® |
MATERIAL SPECIFICATIONS
Scheme 3
Scheme 4
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical damage.
- Inspect the power steering fluid for the following conditions: Aerated or foamy: Purge the power steering system. Refer to «POWER STEERING SYSTEM PURGING»(ref-210123-S22498169662005121300000) . Overheating or contamination: Flush the power steering system. Refer to «POWER STEERING SYSTEM FILLING»(ref-210123-S16087702132005121300000) .
- Check the power steering system for fluid leaks. Check the power steering fluid level. NOTE: It may be necessary to add power steering fluid to achieve the correct level. With the ignition OFF: Wipe off the power steering pump, power steering pressure hose, power steering return hose, power steering fluid cooler, hose assembly and steering gear. CAUTION: Do not hold the steering wheel at the stops for an extended amount of time. Damage to the power steering pump can occur. Start the engine and turn the steering wheel from stop-to-stop several times and check for leaks.
- Inspect the power steering pressure and return hoses, fittings and O-rings for leaks. If a leak is detected at a power steering pressure or return hose, install a new hose. Refer to «POWER STEERING»(ref-210125) . If a leak is detected between a fitting nut, seal the fitting nut using Teflon® joint seal. If a leak is detected at a fitting, tighten to specification. If leak is still evident, visually inspect the fittings, O-rings and Teflon® seals. Install new as necessary. Refer to «POWER STEERING»(ref-210125) . If a leak is detected at the power steering reservoir, install a new reservoir. Refer to «POWER STEERING»(ref-210125) . If a leak is detected at a constant tension spring clamp, verify that the hose is fully installed on the fitting and that the hose clamp is correctly positioned. If the leak remains, install a new screw clamp. If a leak is detected at a screw clamp joint, tighten the screw clamp. If the leak remains, inspect the tube end and install a new hose. Refer to «POWER STEERING»(ref-210125) . If a leak is detected at the power steering pump, install a new power steering pump. Refer to «POWER STEERING»(ref-210125) .
- Inspect the power steering gear for leaks. If a leak is detected at the power steering gear, install a new power steering gear. Refer to «POWER STEERING»(ref-210125) . EXTERNAL LEAK CHECK - POTENTIAL POWER STEERING GEAR BOX LEAK POINTS
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the cause is not visually evident, verify the symptom and GO to «SYMPTOM CHART»(ref-210123-S34742107792005121300000) .
See also:
• JACKING & LIFTING