PULLEY 2677509 - Caterpillar

Never allow the lubricator bowl to become empty. The air starting motor will be damaged by a lack of lubrication. Ensure that sufficient oil is in the lubricator bowl.
Illustration 1 g00381232
(1) Air valve
(2) Lubricator bowl
(3) Adjustment knob
The vanes of the air starting motor are lubricated with a fine mist of oil from the air starting motor lubricator. Check the level of oil in lubricator bowl (2). If the oil level is less than 1/2, add oil to the lubricator bowl.
Ensure that the air supply to the lubricator is OFF.
Remove the plug. Pour oil into lubricator bowl (2). Use "10W" oil for temperatures that are greater than 0° C (32° F). Use air tool oil for temperatures that are below 0° C (32° F).
Install the plug. Oiler Feed Adjustment
If necessary, adjust the lubricator in order to release approximately two drops of fluid per 30 seconds into the starting motor air stream.
Ensure that the fuel supply to the engine is OFF.
Turn adjustment knob (3) clockwise until the adjustment knob locks.
Turn adjustment knob (3) counterclockwise for 1/4 turns.
Do not crank the engine continuously for more than 30 seconds. Allow the starting motor to cool for two minutes before cranking the engine again.
Crank the starting motor for ten seconds and observe the exhaust air from the mufflers of the starting motor. Look for oil mist. A slight oil mist should be barely visible. If no mist is observed, or if the mist is excessive, rotate adjustment knob (3) in increments of 1/16 in order to increase or decrease the oil mist. Repeat the starting motor cranking and observe until the mist is satisfactory.Note: Drip rates should only be made under an average steady flow condition. Once a steady flow condition is established, the lubricator will automatically adjust the drip rate in proportion to the variations in air flow.