
FIG 66-2
coa
t w
ith g
rea
se
app
rox
. 30
”
FIG 66-1
66
VI.
SERVICE AND MAINTENANCE
Torque Hub
®
Seal Boot
Each leg has a seal boot located between the wheel motor
and Torque Hub
®
. Grease the zerk on the wheel motor (fig. 66-
1) every 50 hours.
An over-greased seal boot will leak some grease out around
the seal and when heated may cause the appearance of a failed
wheel motor leaking hydraulic fluid. Wipe off any excess grease
after servicing.
Hydraulic Tread Adjust Bearing Slide-Path
The slide-path (fig. 66-2) for the hydraulic tread adjust nylon
bearings should be generously coated with an appropriate
lubricant. Standard grease applied by hand over the entire
length of the bearing’s range of travel should suffice.
Inspect this area often and lubricate as required. Failure to
do so may cause one of the legs to hang up while the other is
still sliding during adjustment. This will cause damage to the
machine. Bear in mind that late season or taller crops may wipe
off some or all of the exposed grease on the under-side of the
mainframe.
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