Amadas 9960 - General Information; Components

Hydraulic System 9960 Self-Propelled Peanut Combine
170 06/03/05 MAN091
General Information
The combine hydraulic system is an open
center system. In this type of system, the
pump runs continuously, even when the
system components are not activated
(system is in neutral). When the system is
in neutral, oil flows through the system and
back to the reservoir – the “open center”
feature.
Components
Two reservoirs. The following two
reservoirs are part of the hydraulic system:
• The hydraulic/hydrostat reservoir, which
supplies oil for the hydraulic, header
drive, and hydrostatic systems.
• The steering/engine gear case reservoir,
which supplies oil for the steering,
separator engage wet clutch, and gear
case lubrication systems.
Two coolers. Each reservoir has its own oil
cooler. Oil cooler bypass valves provide
quick warm-up of the oil in cold weather.
Three oil filters. These three filters provide
filtration for the hydrostatic system, the
steering/engine gear case system, and the
combine return oil from the hydraulic and
header drive systems. If the combine is
equipped with the Off-load Conveying
System (OCS) option, the combine has a
fourth filter.
Three pumps. The three pumps supply oil
to the steering/engine gear case system,
hydraulic system and the header drive
system. The hydrostatic system uses its
own charge pump to supply oil to the
hydrostatic unit. If the combine is equipped
with the OCS option, the combine has a
fourth filter.
IMPORTANT!
The components in this
system are built to very close tolerances
and have been adjusted at the factory.
Do NOT attempt to service these
components except to ma
intain proper
oil level and to change oil and filters.
See your John Deere dealer for all other
service.
WARNING
If one reservoir overfills and the other
drains suddenly without explanation, it is
possible that a seal between the two
pumps is damaged. Do N
OT operate the
combine until the condition has been
corrected. Serious damage to the
components and/or loss of steering could
occur.
IMPORTANT!
Your machine was
delivered with all hydraulic hoses correctly
routed and attached. If the basket (
or
conveyor if you have OCS) needs to be
removed for some reason, make sure the
hoses are correctly routed again before
operating the machine.
Refer to Appendix E -
Routing Hydraulic
Hoses
for instructions on routing the
hoses.