Pressure Testing; Charge Pressure Test - Kohler K91 Owner's Manual

1975 D S E R I E S
TRANSMISSION
CONTROL LINKAGE
\
FIG. 12.
PRESSURE TESTING
Use a
0
to 1000
Ib.
gauge for all pressure testing.
Block the rear axle so the wheels are off the floor.
All pressure testing should be performed at or near
full throttle with the wheels turning. Turn the wheels
by moving the speed control lever into forward or
reverse.
CHARGE PRESSURE TEST
Charge pressure i s a n indication of transmission
condition. Connect the pressure gauge as shown in
Fig.
13
to the
1/4"
pipe plug located between the imple-
ment hose ports. The alternate port (straight thread)
just above this port may be
used
if
it i s more con-
venient.
With the engine running at
3/4
throttle the charge
pressure should be
70
to
150 PSI.
The pressure must
never drop below
50 PSI
under any condition. Always
take pressure tests when the transmission oil i s cold
24
FIG. 13.
Charge Pressure Test Separated System