PL61 Pipelayer Power Train Systems Caterpillar


Graphic Color Codes

Usage:

PL61 WGS



Illustration 1g01395804

(AA) Black ... Mechanical connection or seal

(BB) Dark Gray ... Cutaway section

(CC) Light Gray ... Surface of the part

(DD) White ... Atmosphere or air (no pressure)

(EE) Purple ... Pneumatic pressure

(FF) Yellow ... Moving parts or activated components

(GG) Green ... Tank oil, suction oil, return oil, and case drain oil

(HH) Brown ... Lubricating oil

(JJ) Red ... High pressure oil

(KK) Red Stripes and White Stripes ... First pressure reduction

(LL) Red Crosshatch ... Second pressure reduction

(MM) Pink ... Third pressure reduction

(NN) Red and Pink Stripes ... Second pump pressure

(PP) Orange ... Pilot, signal or torque converter oil

(QQ) Orange Stripes and White Stripes ... Reduced pilot, signal or torque converter oil

(RR) Orange Crosshatch ... Second reduction in pilot, signal or torque converter oil

(SS) Blue ... Trapped oil

Caterpillar Information System:

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