Operation & Maintenance Manual
──
LG968 /969Wheel Loader
63
same time, then press accelerograph; when changing the speed from high to low, release the
accelerograph first and then change the transmission slowly.
7.
Operate the lift-ram and bucket to the required position, pull (push) the working equipment
control lever back to the middle position.
8.
Stop to change the forward or backward driving direction.
9.
Full load working is allowed until the water temperature of engine is above 60
℃
and the
mobile temperature of engine is above 50
℃
. But the water temperature of engine should not
over 95
℃
and the mobile temperature of engine is not over than 120
℃
, otherwise stop to
cool.
10.
Never
lift the bucket to the up most position to transport material. The lower hinge of lift
arm should be 400
～
500mm above the ground to ensure stable driving.
11.
Diesel engine is used in the machine. The power will go down as the altitude goes up,
environment temperature and relative temperature go down. So please pay attention to the
environment conditions and calculate the real power under the current environment condition
according to the power correct 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 machine to see whether there is lose of bolt, dirt, oil leak,
leak of coolant and broken of parts. Check the status of accessories and hydraulic parts.
z
Check before Starting:
1)
Check the fuel of fuel tank, see “
3.6.2 Adding Fuel to Fuel Tank
” in this chapter.
2)
Check the hydraulic oil in hydraulic oil tank, see “
3.6.5 Adding Oil to Hydraulic Oil
Box
” in this chapter.
3)
Check the mobile oil at engine oil pan, see “
3.6.1 Fuel Supplying of Engine
” in this
chapter.
4)
Open the water tank cover to check the water level of water tank.
5)
Check the brake oil of oil bowl of brake booster pump.
6)
Check the seal ability of oil pipe, water pipe, air pipe and other parts.
7)
Check the seal ability of hydraulic pipes and the pipes round.
8)
Check the wire connection of storage battery.
