New Holland 499 Operator's Manual page 105

HYDRAULIC AND HYDROSTATIC SYSTEMS
WARNING
Fluid under pressure can have sufficient force to
penetrate the skin, causing serious personal
injury. Always protect the skin and eyes from
escaping fluid under pressure.
Before disconnecting lines or fittings, be sure to
relieve all pressure. Before applying pressure to
the system, be sure that all connections are tight
and that lines, pipes, and hoses are not damaged.
If injured by escaping fluid, obtain medical
assistance at once. Serious infection or reaction
can develop if medical treatment is not adminis-
tered immediately.
WARNING
Disengage the PTO, turn off the tractor engine
and remove the key. Wait for all movement to
stop before leaving the operator's position.
Never adjust, lubricate, clean or unplug machine
with the engine running. Failure to comply could
result in death or serious injury.
SECTION 4 - MAINTENANCE
HYDRAULIC SYSTEM
The tractor hydraulic pump and reservoir supply oil
to raise the header and to pivot the tongue. Lower the
header before checking the oil level in the tractor
hydraulic reservoir. Use an oil approved by the
tractor manufacturer, to keep the reservoir filled to
the proper level. It has 75.7L (20 gal.) capacity.
4-45