OP.GUIDE 5U0636 - Caterpillar

The lines and the pipes in the automatic lubrication system are under extremely high pressure.Do not loosen any joints or plugs while the pump is operating.Serious injury can result from high pressure grease spraying out suddenly.
Inspect the level of the reservoir when a message appears on the display which indicates that the level of grease in the grease reservoir is low.
Illustration 1 g00924902
Place switch (3) in the center position in order to test the bulb in light (2). Place switch (3) in the ON position in order to activate the level indicator. Add grease to the reservoir at fitting (1) until the level of grease is to the "MAX" level. When the reservoir is full, light (2) will illuminate. Place switch (3) in the OFF position.Note: Make sure that the grease level does not fall below the "MIN" level in the reservoir. The operation of the automatic lubrication system with the grease level below "MIN" will damage the front pins and the swing bearing because not enough grease will be supplied to these areas.Note: Any foreign material that enters the grease reservoir could restrict the lubrication lines or the foreign material could damage the valves. Prior to adding the grease to the reservoir, be sure to wipe any potential contaminants from the grease fitting and from the grease gun nozzle.Note: When you add grease to the grease reservoir, never add the grease beyond the "MAX" level. If you add grease above this level, the cover of the grease reservoir could come off during operation. The capacity of the grease reservoir is 61 L (16 US gal).Refer to Operation and Maintenance Manual, "Lubricant Viscosities" for information about the correct type of grease.