Hydraulic Hoses; Hydraulic Oil - Jacobsen Greens King V Plus Service Manual

4 MAINTENANCE
GB

4.10 HYDRAULIC HOSES

WARNING
To prevent serious injury from hot, high
pressure oil, never use your hands to
check for oil leaks, use paper or
cardboard.
Hydraulic fluid escaping under pressure
can have sufficient force to penetrate
skin. If fluid is injected into the skin it
must be surgically removed within a few
hours by a doctor familiar with this form
of injury or gangrene may result.
1. Always lower implements to ground,
disengage all drives, engage parking
brake, stop engine and remove key
before inspecting or disconnecting
hydraulic lines or hoses.
2. Check visible hoses and tubes daily.
Look for wet hoses or oil spots. Replace
worn or damaged hoses and tubes before
operating the machine.
3. The replacement tube or hoses must be
routed in the same path as the existing
hose, do not move clamps, brackets and
ties to a new location.

4.11 HYDRAULIC OIL

Refer to Section 6.3 for specific maintenance
intervals.
Drain and replace the hydraulic oil after a major
component failure, or if you notice the presence of
water or foam in the oil, or a rancid odor (indicating
excessive heat).
Always replace the hydraulic filter when changing
oil.
To change hydraulic oil:
1. Clean the area around the oil cap to
prevent impurities from entering and
contaminating the system.
a. Oil temperature should be at 60° to
90°F (16° -32° C). Do not check oil level
when oil is hot.
b. The main oil tank should always be
full. A Low oil level in the main tank will
drain oil from the expansion tank.
JACOBSEN GREENS KING V PLUS
MAINTENANCE AND PARTS MANUAL
4. Thoroughly inspect all tubes, hoses and
connections every 250 hours.
IMPORTANT: The hydraulic system can be
permanently damaged if the oil becomes
contaminated. Before disconnecting any hydraulic
component, clean the area around the fittings and
the hose ends to keep impurities out of the system.
a. Before disconnecting any hydraulic
component, tag or mark the location of
each hose then clean the area around the
fittings.
b. As you disconnect the component, be
prepared to assemble plugs or caps to
the hose ends and open ports. This will
keep impurities out of the hydraulic
system and also prevent oil spills.
c. Make sure "O" rings are clean and hose
fittings are properly seated before
tightening.
d. Keep the hose from twisting. Twisted
hoses can cause couplers to loosen as
the hose flexes during operation resulting
in oil leaks.
e. Kinked or twisted hoses can restrict the
oil flow causing the system to
malfunction and the oil to overheat and
also lead to hose failure.
c. The oil level in the expansion tank
should always be at or above the "COLD"
level mark. Add oil to the expansion tank,
not the main tank.
2. Drain and replace the hydraulic oil every
200 hours or after a major component
failure, or if you notice the presence of
water, foam, or a rancid odor.
3. Remove drain plug from bottom of main
tank and loosen or remove breather cap
on top of expansion tank. Check and clean
the breather cap, replace as necessary.
4. After oil has drained install drain plug and
fill with Textron Turf Care and Specialty
Products Hydraulic oil.
5. Purge air from system.
a. Operate all tractor functions for about 5
minutes to purge air out of the system and
stabilize the oil
b. Once the level has stabilized and the air
is purged, fill the expansion tank to the
"COLD" level.
GB-17