SECTION 7
TRANSMISSION
FIGURE 7-46.
7-45. FORWARD-REVERSE CONTROL VALVE
(SW figure 7-46).
7-46. GENERAL.
7-47. The control valve is actuated by the
directional throttle control on the dashboard. A
detent mechanism on the right side holds the
spool In the desired position.
7-48. There are five ports in the housing: (1)
reverse dump, (2) reverse charging, (3) neutral,
(4) forward charging, and (5) forward dump.
7-49. There is always 160 PSI (11.25 kg/cm2)
FIGURE 7-47.
at the pressure check port with the engine
running at 1800 RPM.
7-50.
DISASSEMBLY OF CONTROL VALVE.
a. Disconnect the shift lever from the spool
by removing a cotter pin and a connecting pin
from spool (see figure 7-47).
b. Remove the four mounting capscrews and
lift the valve off the case. Keep track of the
o-rings.
c. Remove the link, cap, seal, and o-ring
from crank side of the body (SW figure 7-49).
d. Unscrew the barrel and remove the spool
with the barrel (SW figure 7-48).
FIGURE 7-48.
7-13.
