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Step 15: Add just enough hydraulic oil to the tank
so the level is above the strainer. Check for leaks
at the strainer connection and the oil drain nut.
Note: If leaks are found, repeat steps 7-15.
Step 16: If no leaks are found, continue filling the
hydraulic tank until you see the fluid in the hy-
draulic oil sight window.
Oil Sight
Window
Acceptable
Level
Hydraulic
Oil Drain
Nut
Step 17: Thread breather onto the neck. Turn the
"collar nut" from the side with hand pressure only
until you cannot turn it anymore. Continue to the
purging procedure on the top of the next column.
CAUTION! Do NOT use a crescent
wrench or other wrench to tighten!
Damage may occur!
Breather
Neck
Tank
Collar Nut
PURGING PROCEDURE
Anytime you drain the tank, disconnect and re-
connect any threaded hose connections, or open
up any part of the attachment control system, you
must purge any air from the system.
Simply stated, what you are doing is working all
valve handles on the attachment valve, and the
backhoe valve (if applicable), back and forth until
all air in the system comes out of the oil tank
breather.
Step 1: Make sure no bystanders are in the area,
and that your work area is well ventilated. Engage
your parking brake, and start the unit up. Set the
throttle at mid throttle.
Step 2: Raise your front attachment all the way up
in the air, (loader or front hitch). Hold the (lift) at-
tachment valve handle, in that position for approx.
3 seconds. The relief valve will kick in. See picture
below.
Step 3: Now lower the same attachment to the
ground, and follow the same process. Hold the
(lower) attachment valve handle, in that position
for approx. 3 seconds. The relief valve will kick in.
See picture below.
CAUTION! When lowering, take care
not to damage the floor you are
working on. The machine has down
pressure and will lift the front of the
tractor off the ground, and you may scratch
your garage floor.
Step 4: Continue the same process for all valve
handles on the attachment valve first, and then the
backhoe valve next. See picture below. The air is
now purged from the attachment control system.
Valve
Handles
44
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