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Hydraulic Oil Installation 2 WD & 4 WD
Hydraulic Tank Filling:
10.
Important: Change the return filter in
tank and suction filters after the first 200
hours of operation. Change the filters again
at 800 hours; then , change the Oil anf
filters at 1600 hrs. After that, continues to
change the Filter every 800 hrs and the Oil
every 1600 hrs. Hydraulic Oil to be used,
AW ISO VG 100 Tractor Hydraulic Oil. Al-
ways use a good Filter Maintance program.
11.
Avoid hydraulic contamination by filter-
ing the hydraulic oil while filling the hydraulic
tank. Filter buggies or carts are commercially
available for hydraulic system cleanup.
These consist of a high-efficiency, high-ca-
pacity filter, a circulating pump, a drive motor,
and hoses for connecting to the overhauled
machine's hydraulic system. (See Figure 17
& 18)
When adding hydraulic oil, use only
new oil from a sealed barrel. Used oil or oil
from an open barrel may contain high levels of
contamination. Transfer the new oil into the
hydraulic tank by using a hydraulic filter pump
unit equipped with a properly operating 10 mi-
cron filter. This will insure that the oil being
added is clean. Do not just pour the oil directly
into the hydraulic tank since most oils (even
from a sealed barrel) have contaminants that
should be removed, before operating the hy-
draulic system. (See Figure 17 & 18)
12.
Basic trouble shooting guide for first
start up. Listed below are some of the most
common things that may be wrong, But not all
problems.
a.
Electrical solenoid valve does not work - check wiring, possible faulty switch,
possible faulty solenoid.
b.
Pump is making noise - check for obstruction in suction hose and tank suction
assembly, check alignment of pump driveshaft.
c.
Cylinders will not raise - hoses from cylinder incorrectly connected to valve
bank, pump not suppling oil.
d.
Cylinder raise slowly - hoses from cylinder incorrectly connected to valve bank, work
port reliefs on valve bank set too low - replace as required.
e.
The mower head slows down or stops completely - the filter may be clogged, replace.
Machete (JD-62, 63, 6420 Asy Man) 10/04
© 2004 Alamo Group Inc.
Figure 17
Figure 18
Section 9 - 9
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