Don‘t allow inject lubricant or maintain to moving machine.
Avoid body and clothing touching with transmission parts.
2) Preparation for maintenance
Place the machine on horizontal ground.
Lower the bucket to the ground.
Run engine at low rev for 5 minutes.
Pull stop handle forward, stop engine, take out key from the
switch.
Hang the ―DO NOT OPERATE‖ label at control lever (As figure 1.17.1).
Switch off pilot control.
3) Safety in maintenance
If the maintenance must be made during the engine operation, there must be somebody in cabin.
If the machine must be lifted, the angle between boom and arm must be kept between 90-110°, to support the
lifted parts stably in maintenance work (As figure 1.17.2).
Never work under the machine being lifted by boom.
Check some parts in regular interval, and repair or replace, if
necessary. (refer to the chapter ―maintenance‖ of this
manual)
Make sure all parts are in good condition and fitted correctly.
Replace wearing or damaged parts. Clean any accumulative
lubricant or scraps.
When adjust electric system or weld on machine, disconnect grounding cable (-) of battery.
1.18 SUPPORTING MACHINE SAFELY
1) Prohibit repairing or maintaining machine before the machine well supported.
2) Before maintenance, lower the work device to the ground.
3) If the machine or work device have to be lifted for maintenance purpose, the machine or work device
should be well supported.
4) Don‘t support the machine on the slag, hollow brick, or other fragile objects.
5) Don‘t work under machine when the machine only supported by a jack.
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