Start-Up Procedure - Eaton 72400 Repair Information

Model 72400

Start-up Procedure

When initially starting a new or a rebuilt transmission system, it
is extremely important that the start-up procedure be followed.
It prevents the chance of damaging the unit which might occur
if the system was not properly purged of air before start-up.
1 After the transmission components have been properly
installed, fill the servo pump housing at least half full with
filtered system oil. Connect all hydraulic lines and check to be
sure they are tight.
2 Install and adjust all control linkage.
3 Fill the reservoir with an approved oil that has been filtered
through a 10 micron filter. Refer to Eaton Hydraulics Technical
Data sheet number 3-401 titled Hydraulic Fluid
Recommendations.
4 Gasoline or L.P. engines: remove the coil wire and turn the
engine over for 15 seconds. Diesel engines: shut off the fuel
flow to the injectors and turn the engine over for 15 seconds.
5 Replace the coil wire or return the fuel flow to the injectors.
Place the transmission unit in the neutral position, start the
engine and run it at a low idle. The charge pump should
immediately pick up oil and fill the system. If there is no
indication of fill in 30 seconds, stop engine and determine the
cause.
6 After the system starts to show signs of fill, slowly move
pump swashplate to a slight cam angle. Continue to operate
system slowly with no load on motors until system responds
fully.
7 Check fluid level in the reservoir and refill if necessary to
the proper level with an approved filtered oil.
8 Check all line connections for leaks and tighten if
necessary.
9 The machine is now ready to be put into operation.
10 Frequent filter changes are recommended for the first two
changes after placing the machine back into operation. Change
the first filter in 3-5 hours and the second at approximately 50
hours approx. hours. Routinely scheduled filter changes are
recommended for maximum life of the hydraulic system.
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