6-20
TROUBLESHOOTING
LOWERING THE BOOM TO
THE GROUND
If the hoe attachment must be lowered to the
ground while the engine is stopped, use the
following procedure.
Procedure 1 (when engine can be started)
Perform this operation within 10 minutes
after the engine stopping.
1. Sit at the operator’s seat.
2. Turn the starter switch to the ON position.
3.Lowerthesafetylocklevertotheunlock
position
4. Slowly push the operating lever forward to
lower the boom.
Procedure 2 (when engine cannot be
started)
This operation is dangerous and requires
experience. Ask your sales or service dealer
for it.
Warning
•Stoptheengineandallowthemachine
to cool down before performing
maintenance.
· The engine and the hydraulic system
and many other parts of the machine
are hot immediately after the engine is
stopped. Touching these parts will
cause burns.
· The hydraulic oil is also hot and under
high pressure immediately after the
engine is stopped.
Be careful when loosening the caps or
plugs. Working on the machine under
these conditions could result in burns
or injuries due to the hot oil spurting
out.
•Keepawayfromtheworkingareawhen
the hoe attachment is lowered. You may
be hit by dirt falling out of the bucket or
the hoe attachment as it drops.
•Stand
inapositionawayfromdangerof
lowering boom and loosen the hose nut.
Otherwise, you could be hit by the
boom.
LOWERING THE BOOM TO THE GROUND
•Donotloosenorremovethehosesnot
located in the specified places. Oil may
spurt out if wrongly handled.
2-Piece boom
1. Place a pan under the hose to catch the
waste oil.
2.Holdthehosetting(1)withawrenchand
loosen the hose nut (2) with another
wrench.
3. The oil in the boom cylinder is drained and
the hoe attachment is lowered.
4. After the hoe attachment is lowered to the
ground, check the safety and stability of
the machine.
5.Holdthehosetting(1)withawrenchand
tighten the hose nut (2) with another
wrench.
· Tightening torque: 24.5 to 29.4 N·m
(18.1 to 21.7 ft-lb.)
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