ENGINE AR-COMP 1213446 - Caterpillar

Blade Hydraulic System
The blade is attached to the front of the undercarriage. The primary uses for the blade is leveling work and extra stability.The blade cylinders are used to RAISE and LOWER the blade. When the blade cylinders EXTEND, the blade LOWERS. When the blade cylinders RETRACT, the blade RAISES.The blade pump is a gear type oil pump that is driven by a shaft from the hydraulic pump. The hydraulic pump is driven by the engine. Oil flows from the blade pump and is directed to the blade control valve. The blade lever is used to activate the blade pilot control valve. The pilot manifold sends oil to the blade pilot control valve when the hydraulic lockout switch is in the UNLOCKED position. The operator moves the blade lever to perform the following operations: Blade RAISE, Blade NEUTRAL, Blade LOWER and Blade FLOAT.The blade hydraulic systems consist of the following main components:
Blade pump
Blade control valve
Blade lever
Blade pilot control valve
Blade cylinders
BladeNote: Refer to the appropriate sections in this manual for more information.