Knuckle Pin Lubrication, Meritor® Axles
Notice: Use regulated pressure when lubricating the knuckle assemblies, otherwise damage could result to the knuckle caps.
Park the vehicle on a level surface, shut down the engine, and apply the parking brake. Chock the tires. When lubricating knuckle pin bushings, do not raise the front axle. Wipe the lube fittings clean, and apply multipurpose chassis grease, NLGI Grade 2 (8% 12-hydroxy lithium stearate grease), until new grease is seen at the bushing grease seal opposite the fittings. The grease seal will accept grease pressure without damage, and is designed to have grease pumped out through it during lubrication. Even if grease leaks out around the top or bottom-plate gasket, continue pumping until new grease is seen at the bushing seal opposite the grease fitting. See Fig..
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Grease Exit
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Grease Fitting
Fig. 1, Meritor Knuckle Pin Lubrication
Note: For operation in very cold climates, use NLGI Grade 1 (6% 12-hydroxy lithium stearate grease).