FILTER GP-PRIMARY FUEL 7C4949 - Caterpillar

Illustration 1 g01149220
Automatic lubrication system
(A) Pilot oil supply
(B) Return to tank
(1) Electronic control (timer)
(2) Fault indicator lamp
(3) Pressure gauge
(4) Lubricant pressure switch
(5) Vent solenoid valve
(6) Manual lubrication point
(7) Pilot oil solenoid valve
(8) Pressure reducing valve
(9) Pilot oil pressure switch
(10) Breather
(11) Check valve
(12) Injector manifold
(13) Injector
(14) Overflow valve
(15) Lubrication pump
(16) Tank
(17) Filler filter
(18) Filler grease fitting The automatic lubrication system consists of three systems. The three systems are the electrical system, the pilot oil system and the lubrication system. The electrical system supplies 24 volt power to the electronic control (timer). The pilot oil system supplies oil to the lubrication pump in order to pressurize the lubrication system. The lubrication system controls the flow of the lubricant to the bearings.