Buhler 535 - Manual (Page 168)

435/485/535
4-35
F4-44
F4-43
Operation 45
Change the Differential Oil
Before changing the differential oil, operate the tractor
a sufficient amount of time to warm up the oil in the
differentials . Loosen the check plug () and remove
the drain plug (2) allowing the oil to drain completely
from the differential housings .
Replace the drain plug (2) and tighten it to 74 N·m
(55 ft-lbs) . Make sure the sealing surface on the plug
is in good condition .
Refill the differentials through the check plug () to
the proper level as indicated by the sight gauge (3) .
Buhler Versatile recommends that 85W40 GL5 oil
be used in temperatures above 0°C (32°F) or 80W90
GL5 in temperatures below 0°C (32°F) .
NOTE: Oil will flow from the differential to the
planetary hubs. Change the oil with the tractor on a
level surface and allow the differential and planetary
hub oil to level out.
Operation 46
Change the Planetary Hub Oil
To drain the planetary hub oil, rotate the tire so that
the drain plug (4) is at the 6 o’clock position . Loosen
the fill plug (5) to allow all of the oil to drain from
the planetary hub . Make sure that the plug (4) is
retightened, and then refill the hub as detailed in
operation 23 .
Torque Value: 6-75 N·m (45-55 ft-lbs)
Wrench size: ¼" ( .250")
Buhler Versatile recommends that 85W40 GL5 oil
be used in temperatures above 0°C (32°F) or 80W90
GL5 in temperatures below 0°C (32°F) .
NOTE: Oil will flow from the differential to the
planetary hubs. Change the oil with the tractor on a
level surface and allow the differential and planetary
hub oil to level out.
Operation 47
Check the Axle Mount Bolt Torque
Check the axle mount bolts for proper torque .
Torque the nuts (6) and (7) to 335 N·m
(000 ft-lbs) . There are four sets of nuts on each end
of both axles .
Wrench size: ¼" ( .250") .
5
4
1 3
2
2
F4-48
6
7
Section 4 - Lubrication & Maintenance
Every 500 Hours