Specifications

Section 3
Maintenance
75
Pneumatic Requirements Flowchart
4004194c
Verify that the transmission
air tank is protected with a
one-way check valve.
The one-way check valve
does not require
replacement.
Verify that the transmission
air tank is protected with a
pressure protection valve.
Verify that no “T” fittings
are used to supply the
transmission with air. Two
separate lines must be routed
from the transmission air
tank to the transmission.
Contact the OEM
and arrange for the
installation of two
separate 5/8" air
lines.
Are “T”
fittings used to supply
the transmission
with air?
Ye s
No
Contact the OEM
and arrange for
the installation of
a one-way
check valve
that performs as
suggested in the
FreedomLine
Installation
Considerations.
Is a one-way
check valve
installed?
No
Yes
Is a pressure
protection valve
installed?
No
Contact the OEM
and arrange for the
replacement of the
one-way check
valve.
Contact the OEM and arrange
for the installation of a
pressure protection valve with
one that performs as suggested
in the FreedomLine Installation
Considerations.
No
Yes
Is the driver
complaining about
getting stuck in
gear?
Yes
This flowchart continues
from previous page.
At what
pressure does the
pressure protection
valve close?
Contact the OEM
and arrange for the
replacement of the
pressure protection
valve with one
that closes at
80 PSI or lower.
Contact the OEM and
arrange for the
replacement of the
pressure protection
valve with one that
performs as suggested
in the FreedomLine
Installation
Considerations.