Bush Hog 2107 Series Operator's Manual page 153

GEARBOX
The gearboxes should not require additional lubricant unless the box is cracked or a seal
is leaking. It is recommended that the oil level be checked after 8 to 10 hours of operation.
If additional oil is required follow the steps below under OIL FILL PROCEDURE.
Use EP80W-90 or EP85W-140 Gear Oil. Under no circumstances should the fill level
exceed the fill level marks on the dipsticks on the outboard boxes or past the Oil
Fill Check Plug on the rear of the Center Gearbox. Capacity of Left and Right Gear-
box is Approximately 66 oz (2.1 QT) per box. Capacity of Center Gearbox is Approx-
imately 32 oz (1 QT).
NOTE: Overfilling the Gearboxes can cause a buildup of pressure during operation
and blow out the seals and cause the excess oil to spew from the Vent Plugs!
ATTENTION: If Gearbox suddenly starts making an unusual noise, stop at once, check
for leaks and refill Gearbox as required.
1. Remove the oil filler plugs on top the Left and Right side Gearboxes
2. Add additional oil (as needed) of EP80W-90 or EP85W-140 Gear Oil.
3. Check with dipstick on the filler plug.
4. Remove the vent plug from the top of the Center Gearbox and the top Oil Fill Check Plug from
the back of the Center Gearbox. Fill with additional oil (as needed) of EP80W-90 or
EP85W-140 Gear Oil until oil runs out the Oil Fill Check Plug hole.
5. Reinstall the vent plug and the check plug.
2107 SERIES 12/21
© 2021 Alamo Group Inc.
MAINTENANCE
VENT
LEFT SIDE
PLUG
GEARBOX
FILLER
PLUG
WITH
DIPSTICK
OIL FILL PROCEDURE
DO NOT OVER FILL GEARBOXES!
Maintenance Section 5-5
CENTER
GEARBOX
VENT
PLUG
FILLER
RIGHT SIDE
PLUG
GEARBOX
WITH
DIPSTICK
VENT
PLUG