Hyundai HL930A Operation & Maintenance Manual page 240

(10) Fill the oil through filler cap and check if the oil
is at the appropriate level.
(11) The proper oil amount is 34.5 liters (9.1 U.S.
gallons)
As the machine is hot after operation wait
until the temperature has dropped.
It is imperative to pay attention to absolute
cleanliness of oil and filter.
Binding is in any case the marking on the oil
level gauge.
Prohibition to inject water to filler cap direct-
ly when you wash the machine.
34) CLEANING TRANSMISSION AIR BREATHER
(1) Remove dust or debris around the air breather.
(2) Remove the air breather and wash it with clean-
ing oil.
Zone "HOT"
Red
Blue
6-46
Level gauge
Air breather