Steering
- Make
- Volvo
- Model
- 900 Series 960 Factory Service Manual
- Year
- 1991–1997
- Section
- 64 Steering › Specifications, mechanical › Steering
Steering
Power steering gear, TRW, Cam Gear

| Make TRW, Cam Gear | |
| Turns of the steering wheel lock to lock: … | 3,5 |
| Gear ratios: … | 16,9:1 |
| Clearance between pre-tensioning piston and cover … | 0.05-0.12 mm |
| Friction torque, measured on input shaft … | 0.6-1.7Nm |
| Power steering balance check: | |
| - pump pressure at specified steering shaft torque … | 1.2 MPa |
| - steering shaft torque … | 3.5-4.5 Nm |
| - maximum difference between left and right lock … | 1 Nm |
| Lubricant, type … | Volvo P/N 1 161 001-1 |
| - quantity … | approximately 100 grams |
| Hydraulic fluid* … | ATF-oil type F, G, Dexron II D, E, III, Ford Mercon |
| Quantity of oil; | |
| B 28 … | 1.0 liters |
| B 19, B 23 … | 0.8 liters |
| B 200, B 230, B 280 … | 0.8 liters |
| B 6254, B 6304 … | 0.8 liters |
| D 24, D 24 T, -1986 … | 0.8 liters |
| D 24, D24 T, D 24 TIC 1987- … | 0.5 liters |
* At temperatures below -20°C the normal ATF oil can be replaced with a synthetic ATF oil, Volvo P/N 1 161 317-1.
When changing to synthetic oil the power steering system must be completely drained. Synthetic oil can be mixed with normal ATF but the cold weather properties are greatly reduced.
| Tightening torques, TRW, Cam Gear | Nm |
| Pre-tensioning piston cover … | 17 |
| Locknut for worm screw … | 37 |
Power steering gear, ZF

| Make ZF | |
| Turns of the steering wheel lock to lock: … | 3,5 |
| Gear ratios: … | 16,9:1 |
| Clearance between pre-tensioning piston and cover … | 0.025-0.05 mm |
| Friction torque, measured on input shaft … | 0.6-2.1Nm |
| Power steering balance check: | |
| - pump pressure at specified steering shaft torque … | 1.2 MPa |
| - steering shaft torque … | 3.5-4.5 Nm |
| - maximum difference between left and right lock … | 1 Nm |
| Lubricant, type … | Volvo P/N 1 161 001-1 |
| - quantity … | approximately 100 grams |
| Hydraulic fluid* … | ATF-oil type F, G, Dexron II D, E, III Ford Mercon |
| Oil quantity, B 28 … | 1.0 liters |
| B 19, B 23 … | 0.8 liters |
| B 200, B 230, B 280 … | 0.8 liters |
| D 24, D 24 T, -1986 … | 0.8 liters |
| D 24, D24 T, D 24 TIC 1987- … | 0.5 liters |
* At temperatures below -20°C the normal ATF oil can be replaced with a synthetic ATF oil, Volvo P/N 1 161 317-1.
When changing to synthetic oil the power steering system must be completely drained. Synthetic oil can be mixed with normal ATF but the cold weather properties are greatly reduced.
| Tightening torque, ZF | Nm |
| Pre-tensioning piston cover … | 7 |
| Locknut for worm screw … | 15 |
Steering gear, KOYO

| Make KOYO | |
| Turns of the steering wheel lock to lock: … | 3,55 |
| Gear ratios: … | 16,8:1 |
| Clearance between pre-tensioning piston and cover … | 0.05-0.12 mm |
| Friction torque, measured on input shaft … | 0.6-1.7 Nm |
| Power steering balance check: | |
| - pump pressure at specified steering shaft torque … | 1.2 MPa |
| - steering shaft torque … | 3.2-4.2 Nm |
| - maximum difference between left and right lock … | 1 Nm |
| Lubricant, type … | Volvo P/N 1 161 001-1 |
| - quantity … | approximately 100 grams |
| Hydraulic fluid* … | ATF-oil type F, G, Dexron II D, E, III. Ford Mercon |
| Oil quantity, B 230 … | 0.8 liters |
* At temperatures below -20°C the normal ATF oil can be replaced with a synthetic ATF oil, Volvo P/N 1 161 317-1.
When changing to synthetic oil the power steering system must be completely drained. Synthetic oil can be mixed with normal ATF but the cold weather properties are greatly reduced.
| Tightening torque, KOYO | Nm |
| Pre-tensioning piston cover … | 59 |
| Locknut for worm screw … | 25 |
Parts & tools for this job For 1991 Volvo 900 Series
- TOOLTie rod end toolSearch: tie rod end puller
- TOOLBall joint separatorSearch: ball joint separator
- FLUIDPower steering fluidSearch: Volvo power steering fluid
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