SERVICE REPAIR
J2.00XM J2.50XM J3.00XM J3.20XM Europe [A416]
1600 SRM 316
Description
General
This section has the description and repair procedures for the steering axle. See the following sections for addi-
tional information on the parts of the steering system: Steering Housing and Control Unit and Hydraulic
System.
Description
The steering axle assembly includes an axle frame,
steering cylinder, and two spindle and hub assem-
blies. See Figure 1. The steering axle is connected
to the frame with center pivot mounts. The center
pivot mounts on the axle frame are fastened to the
lift truck frame with rubber mounts. The steering
axle can make an articulated motion and gives the
lift truck a smoother travel over rough surfaces.
The end caps of the steering cylinder are also the
mounts for the cylinder and are held to the shell by
the mount capscrews. O-rings, seals, and wipers
in the end caps are used to keep the oil inside the
steering cylinder. The ends of the piston rod extend
from both ends of the cylinder. A single piston and
the seal are at the center of the rod. Oil pressure
on one side of the piston moves the piston in the
bore. When the piston moves in the bore, it pushes
an equal amount of oil from the opposite end of the
cylinder. This oil returns to the steering control unit.
When the piston reaches the end of the stroke, a relief
valve controls the oil pressure so the components are
not damaged. Tie rods connect the spindle arms to
the cylinder.
1. SPINDLE AND HUB ASSEMBLY
2. AXLE FRAME
3. BRACKET
4. RUBBER MOUNT
5. STEERING CYLINDER
6. NUT AND BOLT
Figure 1. Steering Axle
1
Steering Axle Assembly Repair
1600 SRM 316
Each spindle turns on two tapered roller bearings.
The spindle and bearings are held in the axle frame
by a kingpin. The preload on the bearings is con-
trolled by a threaded nut on the bottom of the king-
pin.
The wheel or hub rotates on two tapered roller bear-
ings and is held on the spindle by a castle nut. The
preload on t