New Holland 499 Operator's Manual page 56

1 Header drive sheave hub
Hydrostatic oil filter, 1.
Change the hydrostatic oil filter after the first 50 hours
of use. Any contamination remaining in the system
should have been loosened and filtered out. The
remaining oil is clean and the system should operate
without problems if the filter is changed at 400-hour
intervals or once each season. Replace oil which is
lost when the filter is changed. The filler cap/dipstick
is in the top of the tongue.
SECTION 3 - LUBRICATION
AFTER THE FIRST 50 HOURS
3-6
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