Column
bush
Ball
ioint
Oust
cover
-7
(1)
Specifications
Unit: inch (mm)
I
I
Gear ratio
1
18.9:l
1
15.4:1
I
Item
Tractor model
TVP~
I
No. of teeth of sector aear on full circle basis
I
15
I
13
I
Specifications
Angle of motion of center shaft
YM155, YM155D
I
Direction of twist of the worm aear
I
Left
I
I
eft
1
YM735, YM135D
2
x
430
degrees
-
~~
~
I
.
.
I
.
-
-
I
-~
.
I
.
Gear oil
I
SAE
#SO
or eauivalent
2
x
410
degrees
Sector gear module
Worm lead
Ball-screw
0.344 (8.731
1
0.313 17.9381
(2)
Inspection and Maintenance
By turning the screw to the right, the amount of
The steering gear box
is
capable of withstanding
play can be reduced. (The standard position
fSr
heavy use, and there
is
rarely any need to dis-
the screw
is
a quarter-turn back from the point
assemble
it
for maintenance work.
at which the screw suddenly becomes hard to
turn.)
Ball-screw
3.5
Oil capacity
Outer diameter of steering wheel
Steering wheel play
Backlash adjustment can be done by varying the
-
number of adjusting shims fitted on the side of
the gear box.
NOTES:
(1)
Check wherher the drag rod
is
bent.
Steering play adjustment can be done by adjust-
ing the backlash of the gears.
(2)
Check whether rhe ball joints function smoothly.
3
0.05
US gals
(0.2
1)
15.75 (400)
1.17-2.0 (30-50)
m)
0.05
US gals
(0.2 1)
14.96 (380)
1.17-2.0 (30-50)
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