Maintenance
50940411/G0219 138 Printed in U.S.A.
Hydraulic System Maintenance
Never use your hands to search for hydraulic
fluid leaks; use a piece of paper or cardboard to
find leaks. Escaping fluid under pressure can be
invisible and can penetrate the skin, causing
serious injury. If any fluid is injected into your
skin, see a doctor at once. Injected fluid MUST
be surgically removed, or gangrene may result.
Checking Hydraulic Oil Level
Check the hydraulic oil level daily before starting
the machine, or after every ten hours of use.
1. Park the machine on a level surface. Fully retract
all hydraulic cylinders (lift arm down; bucket
flat).
2. Perform the “Mandatory Safety Shutdown
Procedure” on page 20.
3. Wait until the engine has cooled. See
“Maintenance and Service Safety Practices” on
page 25.
4. Open the engine cover according to “Engine
Access” on page 126.
5. Check the level of the hydraulic oil in the sight
gauge (Y, Fig. 143) located in the right engine
compartment wall. The oil level should be in the
middle of the sight gauge (A).
6. If the hydraulic oil level is low, use the ignition
key to unlock and open the hydraulic tank cover
(H, Fig. 144), located on the top right of the
machine next to the top engine cover. Lock tank
cover open using pin (D).
Always prop the hydraulic tank cover open
using pin (D). Severe injuries can result if the
battery compartment cover falls on hands and/
or fingers.
7. Remove the hydraulic tank breather/oil fill cap
(P).
NOTE: Slowly remove the hydraulic breather/oil
fill cap (P). Allow the pressure to escape before
completely removing the cap.
8. Add hydraulic fluid as required. See “Fluids/
Lubricants Types and Capacities” on page 35 for
proper hydraulic oil grade and type.
IMPORTANT:
Do not mix different types/grades of
hydraulic fluids.
Reinstall and tighten the oil fill cap. Close and
lock the hydraulic tank cover.
Y
Fig. 143 – Hydraulic Oil Level Sight Gauge
A
P
D
H
Fig. 144 – Hydraulic Oil Fill
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