Invacare 9000 User Manual
Page 20
20
Steering Pin
(INSTALLED)
Steering Link
Adjustment
Nuts
Steering
Pin Rod
End
Steering Link
Front Caster
Drive
Arm
S
T
E
E
R
I
N
G
L
I
N
K
BALANCING THE STEERING LINK
ALIGNING THE CASTER AND DRIVE ARM
Steering Link
Steering Link Adjustment Nuts
Drive Arm
Rod End
Steering Pin Rod End
Drive Arm Threads
Steering Pin
Threads
NOTE: Threads are enlarged for clarity.
Step
Description
Number
3A
Drive Arm Threads
5
3A
Steering Pin Threads
6
3B
Total Number of Threads
11
3C
Divide in Half
5.5
CHART A - THREAD CALCULATION
7. Repeat STEPS 1-6 until the caster points straight
ahead.
8. Balance the steering link. Refer to BALANCING THE
STEERING LINK in this procedure of the manual.
Balancing the Steering Link
NOTE: The steering link MUST be balanced to ensure it
is properly secured to the rod ends.
1. Remove the steering link from the fork. Refer to CON-
NECTING/REMOVING STEERING LINK TO/FROM
FORK in this procedure of the manual.
2. Rotate the steering link adjustment nuts until they
are against the steering link as shown in FIGURE 2.
DO NOT tighten
3. Perform the following steps. Refer to CHART A for
an example of thread calculation.
A. Count the number of drive arm threads and steer-
ing pin threads between the rod ends and the
steering link.
B. Divide the number of threads determined in
STEP A in half.
C. Rotate the steering pin rod end and the steering
link until only the number of threads determined
STEP B are showing at each end.
4. Securely tighten both steering link adjustment nuts
against the steering link.
5. Connect the steering pin to the fork. Refer to CON-
NECTING/REMOVING STEERING LINK TO/FROM
FORK in this procedure of the manual.
FIGURE 2 - ADJUSTING CASTER AND DRIVE ARM ALIGNMENT
PROCEDURE 6
STEERING LINK
Drive
Arm
Rod
End