Operation and maintenance manual

SM 1393 Rev 1 2-00
1
Section 220-0120
SM - 406
STEERING SYSTEM - Steering Cylinder
8 - Rod Seal
9 - Wiper
10 - Bearing Ring
11 - Grub Screw
12 - Piston Seal
13 - 'O' Ring
14 - Backup Ring
15 - Cushion Sleeve
16 - Lube Fitting
17 - Pin
18 - Pin
19 - Spacer
20 - Seal (if fitted)
21 - Seal (if fitted)
22 - Bolt
23 - Hardened Washer
24 - Locknut
25 - Washer
Fig. 1 - Sectional View Of Steering Cylinder and Mounting
DESCRIPTION
Numbers in parentheses refer to Fig. 1.
The steering cylinders can be identified as item 8 in
Section 220-0000, STEERING SYSTEM SCHEMATIC.
There are two single stage, double acting, cushioned
steering cylinders on the vehicle. The cylinder base
end is connected to the front frame and piston rod (2)
end is connected to the rear frame. Single stage,
double acting means that piston rod (2) can have oil
applied to either side, extending or retracting the
piston rod.
The cushioning effect is obtained by a tapered spear
at the base end of cylinder body (1) entering a cavity
in piston rod (2) through cushioning sleeve (15). This
gradually slows piston (3) which in turn helps to control
destructive shock effects when piston (3) bottoms.
Cylinder mounting is by pins (17 & 18), spacers (19),
seals (20 & 21, if fitted) and spherical bearings (5)
secured with circlips (6). Spherical bearings (5) permit
a limited amount of cylinder misalignment when
travelling over rough terrain.
Note: Refer to Section 220-0100, FLOW AMPLIFIER
VALVE for steering operation.
REMOVAL
Numbers in parentheses refer to Fig. 1.
WARNING
To prevent personal injury and property
damage, be sure wheel blocks, blocking
materials and lifting equipment are properly
secured and of adequate capacity to do the job
safely.
1 - Cylinder Body
2 - Piston Rod
3- Piston
4 - End Cap
5 - Spherical Bearing
6 - Circlip
7 - 'O' Ring
Steering
Lock Bar