6
from the switch.
Hang “DO NOT OPERATE” label at control lever.
Switch off pilot control.
⚫ Safety in maintenance
If maintenance must be made during engine operation, there must be somebody in cabin.
If the machine must be lifted, then the angle between boom and arm must be kept between
90-110° to support the lifted parts stably in maintenance work.
Never work under the machine being lifted by boom.
⚫ Check some parts at regular intervals, repair or replace, if necessary. (refer to chapter
“maintenance” in this manual)
⚫ Make sure all parts are in good condition and fitted correctly. Replace worn or damaged
parts. Clean any accumulative lubricant or scraps.
⚫ When adjust electric system or weld on machine, disconnect earthing cable (negative pole)
of battery.
1.18 SUPPORT MACHINE CORRECTLY
⚫ Prohibit repairing or maintaining machine before the
machine is well supported.
⚫ Before maintenance, lower the working device to the
ground.
⚫ If the machine or work device have to be lifted for
maintenance purpose, the machine or work device
should be well supported.
⚫ Don’t support the machine on slag, hollow brick, or
other fragile objects.
⚫ Don’t work under machine when it is only supported
by a jack.
1.19 CLEAN TRASH ON THE MACHINE
⚫ Keep the engine, radiator, battery, hydraulic line, fuel
tank, and cabin clean.
⚫ After stopping engine, the surrounding temperature
may rise immediately. Open overhaul gate to cool
engine as soon as possible and clean engine
apartment.
⚫ Clean machine at regular interval, eliminate
accumulative lubricant and other trash. Make sure
not to spray water or vapour into cabin.
1.20 PREVENT BATTERY FROM EXPLODING
⚫ Prohibit fire or flame being close to the battery top,
otherwise the battery gas will explode.
⚫ Check the electricity deposit with voltage meter or gravimeter. Don’t place metal bestriding
connection rod to check electricity deposit.
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