MacDon FD75 OM - Manual (Page 287)

MAINTENANCE AND SERVICING
Adding Oil to Header Drive Gearbox
To add oil to the header drive gearbox, follow these steps:
1. Lower cutterbar to ground. Gearbox must be in
working position. Shut down combine and remove key
from ignition.
2. Remove plug (A) and filler plug (B).
3. Add SAE 85W-140 (API Service Class GL-5) oil at (B)
until it runs out of hole (A).
4. Replace plug (A) and filler plug (B).
Figure 6.34: Gearbox
Changing Oil in Header Drive Gearbox
To change the header drive gearbox lubricant, follow these steps:
Change header drive gearbox lubricant after the first
50 hours of operation, and every 1000 hours (or 3 years)
thereafter.
1. Raise or lower header to position oil drain plug (A) at
its lowest point. Shutdown combine and remove key
from ignition.
2. Place a suitable container (approximately 1 US gallon
[4 liters]) under gearbox drain to collect oil.
3. Remove drain plug (A) and filler plug (C), and allow oil
to drain.
4. Replace drain plug (A), and remove oil level plug (B).
5. Add SAE 85W-140 (API Service Class GL-5) oil at
(C) until it runs out of hole at (B). Gearbox holds
approximately 5 US pints (2.5 liters).
6. Replace oil level plug (B) and filler plug (C).
Figure 6.35: Gearbox
169894 273 Revision A