MAINTENANCE - PACCAR 20k Front Axle Lubrication 1 PACCAR 20k Front Axle Lube Points 1. Upper kingpin bearing 2. Tie rod end 3. Lower kingpin bearing 1 2 3 based or 75W-90 synthetic gear oil is acceptable. Check the lubricant level at each greasing interval. Maintain the lubrication fluid level at centerline of axle or fill line on hub cap. Always check fluid level on flat ground. NOTE prove grease flow and flush contami- nation. If it is difficult to grease either the up- per or lower bearing, try greasing the bearings with the vehicle jacked up and supported on axle stands to im- Oil Bath Lubricate wheel end assembly with a drive axle lubricant that meets MIL-L-2105D specifications.
Either SAE 80W-90 mineral 8 Y53-1280-1A1 (05/08/2018)