FRONT AXLE AND SUSPENSION FRONT AXLE AND SUSPENSION Kingpin Lubrication Suspension Lubrication Lubricate with approved lubricant. Lubricate knuckle thrust bearings, knuckle pins, and tie rod ends. See Preventive Maintenance Schedule on page 5-12. Lack of lubrication causes premature wear and hard steering. Lubrication schedule may be shortened if necessary. Each standard spring anchor pin has a grease fitting. Pressure lubricate spring pins as specified. See Preventive Maintenance Schedule on page 5-12. Axle Lubrication Change bearing lubrication when seals are replaced, or brakes are relined. See Preventive Maintenance Schedule on page 5-12.
At regular intervals, the spring leaves may be lubricated with a rust-inhibiting oil applied with a spray gun or brush. Thoroughly clean hubs and bearings with solvent and a stiff bristle brush, then dry and inspect components for wear or damage. Re-lubricate with approved axle lubricant. Depending on your suspension, lubricate all spring pins until grease flows out of both ends of the bushing. Look for signs of rust or water in the flushed grease. If a pin will not accept grease, it should be removed, cleaned, and inspected. 5 CAUTION Do not spray the suspension with chemical products or mineral oil; it can cause damage to the bushings. 5-116 Y53-6077-1B1 (03/17)