Main Control Valve Body

Main control valve body
Disassembly

Notice:
a) Each valve should slide in/out under its own weight.
b) When a valve win not slide in/out under its own weight, depending on valve, push it out with a wire or replace valve body open-side down and lightly tap it with a soft hammer.
c) If a valve surface or bore is scratched or damaged, replace control valve body.
d) Do not drop or lose valves or internal parts.
e) Before assembly, make sure all parts are thoroughly clean.
f) Apply ATF to an parts and bores.
g) Note proper direction of valves and internal parts.
h) Do not reuse any part that has been dropped.
i) Wrap a screwdriver or rod with tape before using it to insert a valve.





1. Disassemble in order shown in figure.

Inspection
1. Measure spring free lengths.








2. If not within specification, replace spring(s).

Re-assembly
1. Insert 3-4 shift spring, 3-4 shift valve and stop plug. Secure them with stop pin.
2. Insert low reducing spring, low reducing valve and stop plug. Secure them with stop pin.





3. Insert 1-2 shift spring, 1-2 shift valve and stop plug. Secure them with stop pin.





4. Insert pressure regulator valve, pressure regulator spring, pressure regulator spring seat, regulator plug sleeve, pressure regulator plug and stop plug. Secure them with roll pin.
5. Insert 2-3 timing valve and 2-3 timing spring. Secure them with spring retainer.





6. Proceed to insert manual valve.