Echo 72854s - Manual (Page 13)

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1. Before starting the hydrostatic pump, make sure
all system components (reservoir, fittings, etc.)
are clean.
2. Fill the reservoir with recommended hydraulic
fluid, which should be filtered before entering
the reservoir.
3. The inlet line leading from the reservoir to the
charge pump must be filled before start-up.
Loosen the fitting at the pump on this inlet line
until oil bleeds out.
Warning! Do not start engine unless pump is
in neutral or detent position on the cable.
4. Start the engine and run at the lowest possible
RPM.
5. Loosen the motor fittings until oil bleeds out to
remove air from the system. Retighten fittings.
6. As air is purged from the unit, the oil level in the
reservoir will drop and bubbles may appear in
the fluid. Refill the reservoir as necessary.
7. Run the feed roller in both directions for several
minutes until any remaining air is purged from
the unit. Refill the reservoir as necessary.
8. Shut down the engine, (or disengage PTO) check
for and correct any fluid leaks, and check the
reservoir level. Add fluid if necessary. The
hydrostatic pump is now ready for operation.
Hydrostatic pressure controlled by the crossover
relief valve is factory set at 1750 PSI. A 2000 PSI
shim kit is available for extreme conditions.
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