Eaton TRTS4400, Troubleshooting Manual

Page: 23 / 46

21
Component Test Procedures
Component T
e
st
P
rocedur
es
Obs1: Under pressures lower than de 6.0 bar the system doesn't work. Low performance between 6.0 e 7.0 bar. Higher than de
7.0 bar normal.
Obs2: If in any check solid contamination found replace the air filter / regulator.
Obs3: Pictures of Exhaust Valve assembly
Shifting low
range / deep
range is slow or
doesn’t work Exhaust valve • Assemble the manometer
in the output at the
exhaust valve.
• Measure the output pres-
sure.
• On neutral
minimum of
7,5 bar
• In any shift
position 0 bar
• If it correct the
exhaust valve is OK
• Check range valve
(next item).
• If it is not correct. dis-
assemble the exhaust
valve and check if the
spring is in the cor-
rect position, accord-
ing to the picture (end
of this section).
• If not, correct the
spring.
• If the assembly is cor-
rect and the measures
are out of specifica-
tion, replace the
exhaust valve.
Deep and Range valve • If everything is OK during
air filter and exhaust valve
tests.
• Disassemble the valve
and inject air at 8 bar in
the low / high hole (see
picture in the end of this
section).
If low and high
range work cor-
rectly. Replace the range valve
If low and high
range doesn't work
correctly. Check the transmission
(next item)
Transmission Disassemble and check gen-
eral condition of the following
components: cylinders, pis-
tons, o'rings and gaskets. Humidity, rust,
wearing, contami-
nation or damaged
o'rings. Replace damaged compo-
nents.
SYMPTOM COMPONENT PROCEDURE OUTPUT ACTION