VII.
SERVICE AND MAINTENANCE
B. FLUIDS
84
AIR CONDITIONING
TYPE–
The cab on your sprayer is equipped with a R-134a air
conditioning system (fig. 7.84-2).
RECHARGING–
Recharge it only with R-134a refrigerant. If
your air conditioning system is mistakenly charged with R-12 refriger-
ant, serious problems, such as compressor seizure, may result.
Therefore, confirm refrigerant before recharging system.
If you do not have the proper recharging equipment, it is recom-
mended that you allow an independent service agent service your air
conditioning system.
SERVICE AND MAINTENANCE
FIG 7.84-2
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. 7.84-1, item A). The other plug will be either at 8 O’clock
(fig. 7.84-1, 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. 7.84-1). Refill wheel hub with gear oil as described above.
GENERAL MAINTENANCE –
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 dis-
perse oil may cause rusting and internal damage to the hub.
FIG 7.84-1
A
B
FULL
LINE
