Eaton RTX-12510, Руководство по обслуживанию

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Trouble Shooting
Range Shift Air System All Models
The following checks are to be made with normal vehicle air pressure but with the engine off. Refer to Illustration A for
check points.
1.
2.
3.
Incorrect Hook-Up
With normal vehicle air pressure and gearshift lever in
the neutral position, move the control button up and
down, from one range to another.
a.
b
If lines are crossed between the control valve and the
air valve on transmission, there will be a steady flow
of air from the top exhaust in control valve if button
is held in the up position.
If lines are crossed between the air valve on transmis-
sion and the air or shift cylinder, the transmission
gearing will not correspond with the button position.
Low range, down position of button, will result in
high range gear engagement in the transmission and
vice versa.
Air Leaks
With normal vehicle air pressure and gearshift lever in
the neutral position, coat all air lines and fittings with
soapy water and check for leaks, moving control button
to
a.
b.
c.
d.
both positions.
If there is a steady leak out exhaust of control valve,
there are defective parts or O-rings in the control
valve.
If there is a steady leak out breather on air valve;
there is a defective O-ring in the air valve; or there is a
leak past O-rings on the shift cylinder piston (see Ill.
F, Check Point E).
If transmission fails to shift into low range or is slow
to make the shift and the transmission case is pres-
surized, see Ill. F, Check Point E.
Tighten all loose connections and replace defective
parts or O-rings.
Air Regulator, Check Point A
With normal line pressure and gearshift lever in neutral,
check exhaust port on side of air regulator. There should
be no leak from this port.
4.
5.
If there is a steady leak from exhaust port, this indicates
a defective air regulator and should be replaced.
Cut off the vehicle air pressure and install air gauge in
line at output port of air regulator. Bring vehicle air
pressure to normal. Regulated pressure should be 57.5 to
62.5 psi.
If correct pressure readings are not obtained, replace
regulator.
Control Valve, Check Point B
With the gearshift lever in neutral, pull the control but-
ton up to high range and disconnect the 1/8" black
nylon air line at air valve.
a, When control button is pushed down a steady blast of
air should flow from the disconnected line. Air will
shut off when button is pulled up. This indicates that
control valve is operating correctly. Reconnect air
line. If control valve does not operate correctly,
check for leaks, restrictions and defective O-rings.
High Range, Check Point C
With the gearshift lever in neutral, push the control but-
ton down and disconnect the high range air line from the
shift cylinder cover.
a.
b.
c.
Pull the control button up. There should be a steady
flow of air from the high range air line. Push button
down to shut off air.
Make sure vehicle engine is off and move the gearshift
lever to a gear position. Pull the button up; there
should be no air at high range line. Move the gearshift
lever to neutral; there should now be a steady flow of
air from the high range line. Push button down to
shut off air and reconnect line.
If air system operated incorrectly, this indicates that
air valve is defective or that actuating parts in shifting
bar housing are jammed or defective.
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