112 Maintenance Steering and Brakes Maintenance Steering System Excessive play in the steering system is checked by turning the steering wheel while the engine is stopped. With the front wheels pointing straight ahead, turn the steering wheel until the front wheel starts moving. Then, turn the steering wheel the other way until the front wheel moves. Play should not be more than 1 in. (25 mm) at the rim of the steering wheel. If the steering play is excessive, check the steering linkage for looseness, wear, etc. Make necessary repairs before driving the vehicle.
W6001506 Power Steering Reservoir The power steering fluid reservoir is filled with Automatic Transmission Fluid (ATF) Dexron ® III for the power steering system. Change fluid every 150,000 miles (240,000 km). Change filter every year or more often if necessary. If the fluid has darkened, it indicates that the power steering system is running hotter than normal and the fluid is overheating. Take the vehicle to a Volvo Truck dealer for troubleshooting the overheating and to have the fluid changed. W6001505