PLATE AS. -RH 2946032 - Caterpillar

Illustration 1 g02953000
Main control valve (1) Right travel control valve (2) Straight travel control valve (3) Left travel control valveStraight travel control valve (2) maintains straight travel even though there is a swing operation or implement operation during travel. The straight travel control valve also improves pipelayer control or placement of timbers.When the machine travels without swing operation or implement operation, the pressure switch for left travel and the pressure switch for right travel are ON. The implement/swing pressure switch is OFF. The oil delivery from the idler pump flows through right travel control valve (1) to the right travel motor. The oil delivery from the drive pump flows through straight travel control valve (2) and left travel control valve (3) to the left travel motor. Because both travel circuits are separated, the machine continues to travel straight, unless a difference in travel resistance occurs between the right and left tracks.The straight travel system ensures the straight travel of the machine when other circuits are operated during travel. The idler pump