Steering SystemSteering System
16-116-1TX / TXH / TXB 180S - 400L (Rev. 4/23/07)TX / TXH / TXB 180S - 400L (Rev. 4/23/07)
Introduction.Introduction. The steering system provides guid-The steering system provides guid-
ance control of the truck.ance control of the truck.
Major ComponentsMajor Components(Illustration 16-1)(Illustration 16-1).. The steer-The steer-
ing system consists of the main pump, manifold,ing system consists of the main pump, manifold,
steering valve, steer cylinder, hoses and varioussteering valve, steer cylinder, hoses and various
fittings.fittings.
Main Pump.Main Pump. Refer Refer toto Section 22Section 22for operation offor operation of
the main pump.the main pump.
Manifold.Manifold. Refer Refer toto Section 22Section 22for operation offor operation of
the manifold.the manifold.
Steering Orbitrol.Steering Orbitrol. Refer toRefer to Section 22Section 22 for opera-for opera-
tion of the steering orbitrol.tion of the steering orbitrol.
Steer CylinderSteer Cylinder(Illustration 16-1)(Illustration 16-1).. The steer cylin-The steer cylin-
der is a double-acting cylinder that turns the steerder is a double-acting cylinder that turns the steer
tires.tires.
Steering Logic.Steering Logic. Refer toRefer to Section 22Section 22for steeringfor steering
logic information.logic information.
Steering System Steering System TrTroubleshooting.oubleshooting. Refer Refer toto
Hydraulic System Hydraulic System TrTroubleshootingoubleshooting chart inchart in
Section 22Section 22..
Setting Hydraulic Pressures.Setting Hydraulic Pressures. Refer Refer toto SettingSetting
Hydraulic PressuresHydraulic Pressuresinin Section 22Section 22for proce-for proce-
dures to set the pressures for the steering system.dures to set the pressures for the steering system.