Amity Technology 3200, Operating Manual

Page: 52 / 77

11 - 2
11.3 Gearbox Oil Level
Gearbox oil levels should be checked routinely and filled to
line (A) shown in Figure 11
- 2.
Side plugs (B) can be found on all gearboxes and the lower
side plug is used to measure the correct fill level.
When gearboxes are filled with the proper amount of oil,
the level should be just below the threads of side plug (A).
Excess oil can be drained from the gearbox using side plug (B).
Under filling the gearbox will cause a buildup of heat which when it reaches a critical level will cause
seal failure which will cause gearbox failure.
11.4 Changing Gearbox Oil
Gearbox Oil service interval is every 250 hours or annually. Although the oil will not break down in
this time period dust, dirt and moisture can enter through the breather when the oil warms and
cools during operation. These contaminants must be removed on a regular basis to ensure long life
for working components. Access holes are located underneath the drain plug on all gearboxes al-
lowing oil to be changed without removing the gearboxes from the defoliator frame. To change the
oil:
1. Before beginning to change oil it is important to clean around the fill (breather), level, and drain
ports to prevent contamination.
2. Place an oil catch pan under each gearbox remove the drain, level and fill (breather) plugs. While
breather is out clean following section 11.5 Breather Cleaning.
3. Allow each gearbox to drain for 10 minutes
4. Install the drain plugs and dispose of used oil in an approved manner.
5. Fill with SAE 80W90 EP (extreme pressure) until oil just starts to seep out of the lower oil level
plug. Refer to Table 8 for approximate fill quantities.
6. Install the level and fill plug.
Figure 11 - 2: Gearbox Oil Level