New Holland 615 Operator's Manual page 41

3. Remove the dipstick and observe the oil level.
The level is correct when it is anywhere within the
marked area at the end, 1, of the dipstick.
Maintain the oil level using Hypoide 90 (API GL5
80W90) or Hypoide SSL (75W90, synthetic) gear
oil.
Change the module oil after the first 50 hours of
use to remove any contaminants from the
break-in process. After this, change the oil every
200 hours or yearly, whichever occurs first.
Drain the oil by removing the drain plug, 1, on the
bottom of the module.
To change the oil on models without the oil drain
access hole in Figure 6, the skid shoe must first
be removed by removing two bolts at 1.
To change the oil, remove the skid shoe by
removing the two bolts at 1. Drain the oil by
removing the allen socket head plug on the
bottom of the module. The modules hold 300 ml
(10 oz.).
Refill the modules to the correct level using
Hypoide 90 (API GL5 80W90) or Hypoide SSL
(75W90, synthetic) gear oil.
SECTION 3 - LUBRICATION
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