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I
=-,
SERVICE
&
MAINTENANCE INSTRUCTIONS
SERVICE
&
MAINTENANCE INSTRUCTIONS
Keep hands and body away from pressurized lines.
Use paper
or
cardboard, not body parts to check
for leaks.
4-
Hydraulic fluid (oil) under
pressure will penetrate skin causing serious
injury.
Make sure that all operating and service
personnel
knowthat In the event hydraulic fluid
penetrates skin, it must be surgically removed
within a few hours by a doctor familiar with this
form of injury, or gangrene may result.
Make sure that all operating and service personnel
know that in the event hydraulic fluid penetrates
skin, it must be surgically removed within a few
hours by a doctor familiar with this form of injury,
or
gangrene may result.
Always wear relatively tight and belted clothing to
avoid entanglement in moving parts. Wear sturdy,
rough
-
soled work shoes and protective equipment
for eyes, hands, hearing and head.
Before working on backhoe, extend boom and
dipperstickand place bucket on ground. Make sure
that all system pressure has been relieved by
operating controls before maintenance, service
or
disconnecting any hydraulic lines.
m
Hydraulic system leak down
and failure
of
mechanical or hydraulic system
can cause equipment to drop causing injury.
Make sure all hydraulic pressure is relieved off
of the backhoe before performing service on
the equipment.
Hydraulic System (Figure
25)
A-
Daily, check the fluid level in reservoir with filler cap
dipstick. Contamination will shorten the
life
of
hydraulicsystem components. Change oil and filter
after first
20
hours of operation and then every
200
hours of operation
or
annually, whichever occurs
first.
In
extremely dusty
or
dry conditions, more
frequent changes may be necessary. System
capacity
is
approximately
5
to
5
-
1/2
U.S.
gallons.
1.
Operate tractor PTO at
540
rpm until the
system reaches operating temperature.
3
4
1.
Oil
breather cap
3.
Oil
filter
2.
Oil
filler
neck
4.
Oil drain
plug
Figure
25.
Oil Maintenance
2.
Remove the drain plug
(4)
from the hydraulic
oil
reservoir.
3.
Drain the oil into a suitable container and
dispose of properly.
Note: Please dispose of used hydraulic
oil
in a
manner that is compatible with the environment.
Do not throw it in the trash
or
pour it on the ground.
4.
Put the oil pan under the oil filter
(3).
Remove
the hydraulic oil filter.
5.
Clean the oil filter mounting base. Lightly
lubricate the new filter O
-
ring and install the
filter onto the base.
6.
Fill
with clean oil.
Do
not mix oil types orgrades.
rn
Hydraulic system fallure may
occur y using an unsuitable hydraulic
oil.
Use
only Dexron
II
type
ATF.
7.
ENGAGE PTO AND RUN AT IDLE
FOR
5
MINUTES, THEN CHECK
OIL
LEVEL. Add
fluid as necessary.
35
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