Maintenance
Overview
non-inflammable detergent.
Guard against Ingress of Dusts
The installation and disassembling of parts shall
be operated in a dust-free place. Clean the
working area and clean the parts to guard
against ingress of dusts.
Cleaning of Mounting Surfaces
Keep clean the contact surface of parts during
the installation and disassembling. If the sealing
grooves of the contact surfaces are damaged,
please contact your sales or service dealer for
repairs or breakup.
Seal Rings and Split Pins
● Ensure to replace all disassembled seal
rings and split pins with new ones.
● Take cautions not to damage or twist any
seal ring during installation.
Seal Rings
● While wrapping the screw plug with seal
ring tape, thoroughly remove the used seal
ring tap from the threads and clean the
5-3
threads.
● Wrap the threads with seal ring and notice
to leave 1~2 end threads of screw plug not
wrapped with seal ring.
Waste Disposal
● Ensure to collect the drained oil of
machine into a container. The improper
treatment of waste oil will pollute the
environment.
● While disposing harmful objects,
including lubricating oil, fuel, coolant,
filter, and battery, please abide by the
applicable laws and regulations.
Checking after Maintenance
● Accelerate the engine speed gradually
from idling speed to fastest speed and
check for leakage of oil or water from
repaired parts.
● Operate all joysticks and check machine
for normal operations.
Precautions for Wire Connections of Battery
● Before operating the electronic system or
performing electric welding, disconnect
the wires from both electrodes (+ and -) of
the battery.
● Ensure to disconnect it from the grounding
electrode (-). Finally connect the
grounding electrode during connection.
● Do not disconnect the battery wires during
the normal running of engine. Otherwise,
the rotary converter circuit or other parts
will probably be damaged.
Seal rings
Leave 1~2 turns of threads not
wrapped with seal ring.
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