(1) The distance between the cam pivot and the
4-45. ADJUSTMENT. No adjustment is required for the
linkage hole is greater than the 7-1/4 inches.
(2) The link lever (36) is binding due to lack of
4-46. FLOW CONTROL VALVE.
lubricant or the lock nut (37) is too tight.
(3) The valve (22) is sticking and should be
flow control valve as follows:
a. Inspect spring (11) for breaks or distortion.
t. Repeat the procedure outlined in sub-paragraphs r
b. Inspect valve (10) for nicks, scores and excessive
and s and observe the left rear axle springs and the left
rear axle brake backing plate as the full turn position of
the rear steering system is reached. Any flexing of the
c. Inspect all threaded components for damaged or
rear axle springs or of the brake backing plate indicates
that the rear wheels have reached a full turn position
prior to the automatic valve shut-off action explained in r
all fluid passages in body (12) for
and s above. This will cause breakage and failure of rear
axle wheel parts, particularly the left rear wheel spindle.
4-48. CHECKOUT. Test operation of flow control valve
u. Another reaction which can often be observed when
in complete steering system, paragraph 4-35.
the automatic shut-off is not functioning properly is that
the front wheels will automatically attempt to steer
4-49. ADJUSTMENT. None required.
themselves (if the steering wheel is not held) due to the
hydraulic back pressure against the front steering valve.
4-50. FRONT DRAG LINK VALVE.
The above actions can be observed by steering the rear
wheels until the cam (35) is in position shown in detail E;
while holding in this position, insert a screwdriver tip
between the roller (30) and the cam (35) causing a slight
front drag link valve as follows:
compression of the spring (25). Notice the severe reaction
on the rear wheel parts and the rear axle spring.
a. Inspect all pipe and threaded components for
stripped or damaged threads.
b. Inspect springs (13, 22 and 46) for breaks or
Failure of the automatic shut-off to function
can be caused by any of the items mentioned
in sub-paragraphs r and s, or from improper
c. Inspect spool (43) for nicks, burrs and excessive
adjustment during steps outlined in
subparagraphs n and o of this adjustment
all fluid passages in body (48) for
4-42 . RELIEF VALVE.
4-52. CHECKOUT. Test operation of front drag link
valve in complete steering system, paragraph 4-35.
relief valve as follows:
4-53. ADJUSTMENT. For adjustment refer to paragraph
a. Inspect spring (15) for breaks or distortion.
b. Inspect ball (13) and ball seat (14) for nicks, scores
4-54. REAR CAM AND VALVE ASSEMBLY.
and excessive wear.
c. Inspect all pipe components for cracks and stripped
rear cam and valve assembly as follows:
a. Inspect springs (26, 33, and 48) for breaks and
4-44. CHECKOUT. Test relief valve in complete steering
system, paragraphs 4-35 and 4-55.