ENGINE AR-COMPLETE 1399904 - Caterpillar

Illustration 1 g03817157
Right Side of Machine (1) Blade control valve (2) Port "B" (3) Outlet line (4) Port "A" (5) Mechanical linkage (6) Pressure tap (7) Inlet lineBlade control valve (1) is mounted to the machine frame on the right side of the machine below the operator platform.The blade control valve is a mechanically operated valve. Mechanical linkage (5) connects the valve to the blade control lever.Supply oil from the steering pump enters blade control valve (1) through inlet line (7). The valve directs the hydraulic oil through port "A" (4) or port "B" (2) to control the blade hydraulic cylinder. Return oil is directed to the charge circuit through outlet line (3) .Pressure tap (6) is installed in the line from port "B" of the blade control valve.
Illustration 2 g03817158
Front of Machine (8) Blade cylinder (9) Leveling bladeOptional leveling blade (9), and blade cylinder (8) are located in front of the drum. When oil is directed into the rod end of blade cylinder (8), the blade (9) is lifted. When oil is directed into the head end of the cylinder, the blade is lowered. When the blade control lever is in the FLOAT position, oil is directed to both ends of the cylinder. In this case, equal pressure on both sides of the cylinder causes the blade to float in the lowered position.