Download - Allison Transmissions

EXHAUST TO
TRANSMISSION
THROUGH PTO
TRANSMISSION
MAIN PRESSURE
MANUAL HYDRAULIC
VALVE OR SOLENOID
VALVE
“FROM COOLER” PORT
PTO LUBE LINE
(with 0.81 mm (0.032 in.) orifice)
V05817
Figure 3–3. PTO Clutch Pressure Plumbing Schematic
3–4.
INSTALLING FILL TUBE AND SEAL
a. Location. The fill tube may be mounted on either the right or left side. The unused
fill tube provision must have a plug in the fill tube opening.
CAUTION: Install a fill tube bracket using the correct length M8
self-tapping screw which is 24.0 mm (0.95 inch). A screw that is too
long may cause cracks and leaks in the main housing. Refer to
AS64-065 in the Allison Sales Tech Data book for the correct screw
specifications.
b. Installation. If the fill tube will interfere with the installation of the
transmission, delay this step until after the transmission is in the vehicle. Install the
fill tube seal into the main housing. Insert the fill tube through the seal until the
shoulder at the bottom of the fill tube contacts the seal. Align the tube bracket with its
bolt location. Install the fill tube bolt and tighten until it is firmly seated against the
bracket.
24