Volvo D11F - Manual (Page 79)

Maintenance and Service 75
Driveshaft
If the driveshaft universal joints are not lubricated properly, they can be
damaged to the point of the driveshaft separating from the vehicle.
Driveshaft separation may cause loss of control of the vehicle resulting in
severe personal injury or death.
Periodic inspection, lubrication, and maintenance of the driveshaft may be
required. Contact your local authorized Volvo Truck dealer.
Rear Axle
Checking and Draining Differential Oil
Check the oil level through the top plug. The oil should be level with the hole.
Add oil if necessary.
Drain oil through the bottom plug. Oil should be drained immediately after
driving while it is still hot.
Also check the rear axle ventilation for blockage. A blockage can cause
overpressure in the axle and oil seal leakage.
Rear Axle
1. Check and Fill Plug 2. Drain Plug
USA22978.bk.book Page 75 Wednesday, July 9, 2008 9:09 AM