VII.
SERVICE AND MAINTENANCE
B. FLUIDS
115
WHEEL HUB OIL
BONFIGLIOLI
OIL LEVEL–
Each wheel hub should maintain a proper oil level at all times.
Less than that would limit lubrication and over full would cause overheating and
damage. To check the oil level, position the hub so one of the face plugs is posi-
tioned at 12 O’clock (fig. 115-1, item A). The other plug will be either at 8 O’clock
(fig. 115-1, item B). (When positioned correctly the arrows in the center of the hub
should make an “L”.) Remove the lower plug; if no oil comes out, the oil level is too
low. Check wheel hub oil level every 100 hours.
If SAE 80W/90 or SAE 85W/140 with EP features oil is needed, remove the top plug also and fill just until it starts to
come out the lower hole (approximately 40 ounces). With the oil at a satisfactory level, re-install plugs.
CHANGE–
The wheel hub oil should be changed after the first 50 hours of field operation. Subsequently, it should be
changed every 500 hours or yearly (whichever comes first).
To change the wheel hub oil, position the plugs so that one is at the 6 O’clock position, and the other is between the 2
and 3 O’clock positions. Remove the bottom plug to drain the oil. Once all of the oil is drained, rotate the hub so that the
plugs are in the filling position (fig. 115-1). Refill wheel hub with gear oil as described above.
FAIRFIELD TORQUE HUB®
OIL LEVEL–
Each wheel hub should maintain a level of half full at all times. Less than that would limit lubrication
and over that would cause overheating and damage. To check the oil level position
the hub so that there is a plug at the 12 O’clock position (fig. 115-2, item A) and the
another at the 3 or 9 O’clock position (fig. 115-2, item B). Remove the lower plug
(fig. 115-2, item B), if no oil comes out, the oil level is too low. Check the oil level
every 100 hours.
If SAE 80W/90 or SAE 85W/140 with EP features oil is needed, remove the top
plug and fill just until the oil starts to come out the lower hole (approximately 84
ounces on a hub without brakes or 62 ounces on a hub with brakes). With the oil at
a satisfactory level, re-install plugs.
CHANGE–
The wheel hub oil should be changed after the first 50 hours of field operation. Subsequently, it should be
changed every 500 hours or yearly (whichever comes first). To change the wheel hub oil, position the plugs so that one is
at the 6 O’clock position, and the other is at the 3 or 9 O’clock position. Remove the bottom plug to drain the oil. Once all of
the oil is drained, re-install the bottom plug and remove the top plug. Re-fill wheel hub with gear oil as described above.
GENERAL MAINTENANCE (both hub types)–
If your sprayer is going to sit for an extended period of time,
occasionally rotate the hubs by driving the sprayer forward and backward at least 1/2 of a tire rotation to adequately coat
all internal hub parts. This will prevent rusting if moisture inadvertently entered the hub during an oil change. Failure to
rotate the hub and disperse oil may cause rusting and internal damage to the hub.
FIG 115-1
A
B
FULL
LINE
FIG 115-2
FULL
LINE
A
B
SERVICE AND MAINTENANCE
