Eaton TRTS4400, Troubleshooting Manual

Page: 22 / 46

20
Component Test Procedures
Deep range
doesn’t work Master control valve
(knob) Remove the air supply S in
master control valve There is air supply None
There isn’t air sup-
ply • Check if the air supply
is correctly assem-
bled
• Check if S from filter
regulator is connected
in S in master control
valve
• Check the hoses
• Remove the air supply SP
at the master control
valve
• Select deep range
There is air supply None
There isn’t air sup-
ply • Check if the air supply
is correctly assem-
bled
• Check the hoses, if
they are ok and there
is no air flow replace
the master control
valve
SYMPTOM COMPONENT PROCEDURE OUTPUT ACTION
Shifting low
range / deep
range is slow or
doesn’t work Air filter / regulator • Assemble the manometer
in the output at the air fil-
ter
• Measure the output pres-
sure
< 7,3 bar (7,56 bar
is the work pres-
sure) • Assemble the
manometer at the air
filter input air.
• Measure the input
pressure.
• If it is the same value
check the vehicle air
supply
• If the value is higher
than on the output
replace the air filter /
regulator.
= 7,56 bar (work
pressure) • Check the exhaust
valve (next item)
SYMPTOM COMPONENT PROCEDURE OUTPUT ACTION