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LIGHTING GP-04 2444023 - Caterpillar

2444023 LIGHTING GP-04 Caterpillar parts
Alternative (cross code) number:
Caterpillar 2444023 LIGHTING GP-04

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Blade Raise
Illustration 1 g02475558
(1) Solenoid
(2) Oil to the tank
(3) Pilot supply
(4) Rod end
(5) Return passage
(6) Head end
(7) Makeup valve
(8) Pilot chamber
(9) Centering spring
(10) Oil from the blade tilt control valve
(11) Resolver
(12) Oil to the pump compensator valve
(13) Signal chamber
(14) Oil from the implement pump
(15) Load check valve
(16) Chamber
(17) Orifice
(18) Valve spool
(BB) Cutaway section
(CC) Surface of the part
(FF) Moving parts or activated components
(GG) Return oil
(JJ) High-pressure oil
(KK) First pressure reduction
(PP) Pilot or signal oil
(QQ) First reduction in pilot or signal oil
(RR) Second reduction in pilot or signal oil
Illustration 2 g02475386When the operator moves the blade control lever from HOLD to RAISE, right solenoid (1) is energized. The solenoid valve opens in order to allow pilot supply oil (3) into pilot chamber (8) on the right end of valve spool (18). The pressure of the pilot oil shifts the valve spool to the left.When valve spool (18) shifts, left orifice (17) is exposed to the pressure in passage (4). The oil that enters orifice (17) becomes signal

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