Operation & Maintenance Manual
──
LG968 /969Wheel Loader
80
z
Rotate to tight the oil drain plugs of two wheels near front axle and the oil inlet plug at the middle
of axle shell.
z
Replace the rear axle oil according to the procedures above. Selections of hydraulic oil please see
“
CHAPTER IV 2.2
Selection of Oil, Fuel and Coolant
”. The followings are the same.
3.6.4.2 Adding Oil to ZF Axle
①
Oil Level Checking
z
Park the machine on level position! Examine all the places that oil needs to be added. Oil
draining should be done some time after the machine is driven.
NOTICE: Be careful for the splash of hot oil when drain oil, add oil and rotate to open oil plug.
②
Types of Oil
z
Oil level of Tire side: rotate the hub until the word “Olstand” is at horizontal position. Oil level
standard is justified as oil flowing out the oil drain plug hole.
z
Oil level of Axle: Oil level standard is justified as oil flowing out middle oil adding hole or the
oil draining plug hole.
③
Examination
z
If the oil level drops after several minutes, add some more until the oil level reach the prescribed
position can keep stable.
NOTICE:
Check the oil level every month! Examine the oil level especially after new drive Axle is
substituted or the drive Axle is repaired before loader is used.
④
Oil Replacing
z
Replace the oil first time after the new loader is driven 500 hours, and replace oil every 1000
hours after then, and replace at least once every year.
⑤
Oil for brake
z
Mobile oil Delvac super 1310
（
registered as SAE10W
）
is recommended for inner brake of
drive Axle.
NOTICE:
It is not allowed to use other brake liquid that is not authorized by ZF. Drain the air in axle
after replacing the new axle or repairing the oil routs of axle.
⑥
Working temperature
z
The continuous working temperature of axle should not be higher than 90 degree. If the
temperature is higher than 130 degree, please stop to examine the brake system and axle.
⑦
Lubricate grease
z
Please use lubricate greases with the following features:
Lithium-based saponification grease, dripping point should be 170 degree NLG2 degree,
lubricate grease should be anticorrosive, water-resistant and press stable. Add grease every week
