TESTING AND ADJUSTMENT
DPS
TRANSMISSION
Inspection
A good program
of
diagnosing and testing
has
three
basic
steps.
1. Asking the
operator
You can ge t
the
full
story
from the
operator;
he will
tell
you
how
the system
or the machine
acted
when
it
began to
fail, what was abnormal about
it.
Ask
about
how
the
machine was used, when
it
was finally
serviced.
Remem bel', most
failure are usually
traced
to poor
servicing or abuse
of
the machine.
2.
Checking the machine
(1) Check
the
oil level
in
the
transmission.
(2) Check the transmission case and oil
lines for any· sign
of
leaks.
(3) Check the inching pedal and
transmission control
lever
linkages for
adjustment.
3. Operating the machine
Get
on
the machine and
operate
it
for
testing. During the
test,
shift the
transmission into all gears, forward and
reverse,
and
operate
the inching pedal.
If
the
machine fails
to
start
smoothly, or
if
inching or shifting is hard,
see
Troubleshooting guide, which follows.
Testing the
clutches
for slippage
(1)
Start
the
engine, depress and lock the
brake pedal.
(2) Run the engine
at
maximum speed,
and move the transmission control
lever into forward
2nd
speed position.
24
(3)
If
the engine
stalls
as soon as the
transmission control
lever
is
shifted,
all clutches
are
not slipping.
If
it
does not
stall
for more than 3
seconds, or
if
it
does not
stall
at
all,
;any:
of
the
clutches
(forward
2nd-speed) is slipping.
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