E3.50XL E4.00XL E4.50XL E4.50XLS E5.50XL Eu [E098]
1600 SRM 720
This section has the description and repair procedures for the steering housing and the steering control unit.
Additional information on parts of the steering system can be found in the Steering Axle and Hydraulic
System service manual sections for your lift truck.
The steering column assembly uses a steering con-
trol unit with hose connections on the bottom of the
unit. The steering housing has mounts for the steer-
ing column and the steering control unit. The steer-
ing wheel is installed on the steering column. See
Figure 1. The housing is adjustable and is held in po-
sition by a latch. The position of the housing can be
changed for operator comfort. The steering housing
is also the mount for control levers and some instru-
The steering system is a hydraulic system that does
not have a mechanical connection between the steer-
ing wheel and the steering axle. The control of the
steering is through a hydraulic circuit.
If the hydraulic pump for the steering system does
not operate, steering is still possible. A check valve
permits the steering control unit to control the steer-
ing cylinder. The lift truck is difficult to steer when
the steering pump is not operating, but the steer-
ing control unit can operate the steering cylinder and
make steering possible.
INSTRUMENT CLUSTER NOT SHOWN.
H2.00-3.20XM (H40-65XM) SHOWN.
1. STEERING WHEEL
4. COLUMN TILT
Figure 1. Steering Housing Assembly
1600 SRM 720
The steering control unit is a rotary valve operated by
the steering wheel. See Figure 2. During the steer-
ing operation, the steering control unit controls the
direction and amount of oil flow to the steering cylin-
der. The steering cylinder in the axle actuates the
steering linkage to move the steer tires. Hydraul