Operation & Maintenance Manual
──
LG958L/LG959 Wheel Loader
73
operate the Gear Control Lever at the same time, and step on the accelerator; when changing the
speed from high to low; release the accelerator first and then change the transmission slowly.
z
After the lift-arm and bucket are moving to the required position, release the control valve lever
to the middle position.
z
Change the forward or backward driving direction after stopping the loader.
z
Full load work is allowed until the water temperature of the engine is above 60 and the mobile
℃
temperature of the engine is above 50 . But the water temperature of
℃
the engine should not be
over 95 and the mobile temperature of
℃
the engine should not be over 120 , otherwise stop the
℃
loader to cool it.
z
Never
lift the bucket to the highest position to transport material. The lower hinge of the lift arm
should be 400
～
500mm above the ground to ensure stable driving during the transporting
process.
z
The power of the diesel engine will go down as the altitude, environmental temperature and
relative temperature goes up. So please pay attention to the environmental conditions and
calculate the real power under the current environmental condition according to the power
correcting table in
Diesel Engine Usage and Maintenance User Manual
.
3.2 Starting
3.2.1 Check before Starting
z
Check the bottom and surrounding of the machine to see whether there are lost of bolts, dirt, oil,
coolant leak, or broken parts. Check the status of accessories and hydraulic parts.
z
Check before Starting:
1)
Check the fuel in the fuel tank. Refer to
3.6.2 Adding Fuel to Fuel Tank
in this
chapter.
2)
Check the hydraulic oil in hydraulic oil tank. Refer to
3.6.5 Adding Oil to Hydraulic
Oil Box
in this chapter.
3)
Check the engine oil in the engine oil pan. Refer to
3.6.1 Fuel Supplying of Engine
in
this chapter.
4)
Open the water tank cover to check the water level in the water tank.
5)
Check the brake oil in the oil bowl of the brake booster pump.
6)
Check the seal ability of the oil pipe, water pipe, air pipe and other parts.
7)
Check the seal ability of the hydraulic pipes and the surrounding pipes.
8)
Check the wire connection of the storage battery.
9)
Check the pressure of the tire to see whether it is normal. Please refer to
CHAPTER II
