Great Plains NTA607HD Operator Manual - Manual (Page 4)

4 Great Plains Manufacturing, Inc. NTA607HD Lift Assist Adjustments
166-365M 12/02/2010
Before Starting
Dense Heavy Overhead Object Hazard:
Use adequate lifting means. Use both mounts
for lifting.
Keep all workers clear of area while a weight is overhead.
Keep hands away from underside of weights, and out of stack-
to-stack contact regions. Weight stacks have a mass of 374kg
(825 pounds). A hoist failure could result in substantial equip-
ment damage, serious injury or death. Hands in the path of
weight movement can be crushed.
Refer to Figure 2 (6in 80-row model with blockage module)
There are three sets of weights bolted to the center
frame weldment. Remove the mid weight stack
first.
This may be the only weight that needs to be removed if
it satisfactorily produces the result you desire. The only
way to judge the result is by running the unit in the field
once the weight is removed.
Null4:
Before Proceeding with Instructions
Refer to Figure 3
Check caster stabilizers
are properly adjusted. It is
unlikely, but casters may want to swing out of position.
Stabilizer bolts should be adjusted tightly enough to
ensure this does not occur. See “Caster Brakes” in the
lubrication section of the Operator Manual (166-283M).
Do not set cart weight transfer higher than necessary.
Values close to 1000 psi can lift the rear of an empty cart
off the ground see “Cart Weight Transfer Adjustment
(Inner Valve)” on page 6.
Figure 2
Weight Stacks
2
2
1 2
1
Figure 3
Caster Stabilizers
3
3
3