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When first operating the Model JH7020 or JH9020 Leveling System in hillside conditions, begin
operation on gradual slopes and work up to more severe slopes only after you have determined that
rear axle weighting is appropriate for downhill maneuvers. The first indication of insufficient rear axle
weighting is sluggish or unresponsive steering while traveling down hill. This effect will worsen if the
operator decelerates. Make sure rear axle weighting is sufficient for safe down hill maneuvers, under
normal deceleration, in your most severe down hill conditions.
Use of grain tank extensions other than those provided by the combine
Notice
manufacturer is strictly forbidden. Use of such extensions voids both the Hillco
Rear Axle Toe In
If the rear tire and wheel size changed after the proper sized rear tires were installed the toe in should
be checked. Consult your John Deere combine operator's manual on the correct toe in for your tire and
wheel size.
General Shielding
Before operating the combine all shields must be in place and be in working condition. Shield to tire
clearance needs to be checked once the correct tires are installed on the combine. Check to see if the
clearance is correct by having someone watch the tire and shields as the operator leans the combine
to the far right and far left. Some tire selections require limit switches to be set slightly early to allow
enough tire clearance between the left and right front side panels.
Drive Shaft and Couplers
DANGER
Rear Axle Weighting
Operator is responsible in determining if combine has proper ballast. If the operator determines
that additional weight is needed on the rear axle to ensure optimal down hill performance it can be
accomplished by adding:
1. Calcium Chloride in Rear Tires
2. John Deere® Rear Wheel Weights
Use caution when using individual turning brakes. Installation of a Hillco Leveling System transfers
additional weight to the rear axle of the combine. Excessive braking to turn can damage your combine
chassis.
D-180215CMA01C
and John Deere NEW Equipment Warranties.
Worn drive shafts and couplers may fail suddenly
leaving the operator without brakes or drive. Check
drive shafts and couplers annually for wear.
The responsibility for making the final
DANGER
determination of appropriate rear axle
weighting lies with the operator.
Hillco Technologies, Inc.
51
Sept. 2022
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