TRANSMISSION AR 4678242 - 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.
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(1) "MAX" level (2) "MIN" level
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.
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.
If the grease level is lower than "MIN" (2), grease should be added to the reservoir.
NLGI Grade 0 grease or NLGI Grade 1 grease that has a low viscosity should be used only in cold weather conditions. The consumption of grease will increase if used in warmer weather.
Any foreign materials that enter the grease reservoir could restrict the lubrication lines or damage the valves. Prior to adding the grease to the reservoir, be sure to wipe any potential contaminants from the grease fitting and the grease gun nozzle.
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 8 L (2.1 US gal).
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(3) Grease gun (4) Grease cartridge
Install grease cartridge (4) in grease gun (3). The grease gun is located in the storage box.
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(5) Filler cap (6) Electric pump
Remove cap (5) from the fill port of the electric pump (6) .
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(3) Grease gun (6) Electric pump
Unscrew the cap from the tip of grease gun (3). Attach the end of the grease gun to the threaded fill port that is on top of electric pump (6) .
Tighten the grease gun until the head of the thread is in contact with the fill port.
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(1) "MAX" level (2) "MIN" level (3) Grease gun (5) Filler cap (7) Handle
Gradually push handle (7) of grease gun (3) until the reservoir is filled to the "MAX" level.
After the supply of grease is finished, remove grease gun (3). Clean the fill port and install cap (5) .
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Grease can also be added by using the supplied grease fitting and using an ordinary grease gun.