GREAT PLAINS 3S-3000-3210, Руководство оператора

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2018-06-18 Table of Contents Index 195-441M
3S-3000/F/HD/HDF Table of Contents Index Troubleshooting 64
Press wheel or openers
plugging
Drilling in damp or wet conditions may increase this problem.
Reduce hydraulic down pressure on openers.
Does not back up drill in field, or stop and allow drill to roll backwards with openers in the
ground.
Check Seed-Lok Wheel.
Feed cup sprockets locked up
or twisted feed drive shaft
Check for foreign matter lodged in one or more feeder cup sprockets.
Liquid insecticide from seed has dried within feed cups. Remove build up by disassembling
each feed cup and scrape foreign substance from the turning surfaces. NOTE: Liquid
insecticide should be applied with caution and care should be taken to clean the feed
system after drilling treated seeds.
Openers drill too deep
(Bulldozing)
Reduce hydraulic down pressure on openers
Check press wheel adjustment
Front of openers dropping too
low in hard or minimum till
conditions
Set opener frame cross bolt in top hole. See “ Opener Height ” on page 55.
Opener hydraulic down pressure set too high
Openers raise when tractor
remote hydraulic lever is held
forward and lower when lever
is held rearward
Reverse the hydraulic hoses at the tractor quick couplers.
Opener frames do not float
over uneven terrain
Tractor remote hydraulic lever not being held in the forward position on the circuit designed
for hydraulic motor control. See “
Active Hydraulic Systems ” on page 33.
Pressure gauges read zero
when openers are lowered and
tractor remote hydraulic lever
is held forward.
The hoses are routed incorrectly between the pressure control valve and the opener lift
cylinders. See “
Opener Lift: Standard Closed-Center ” on page 102 or “ Opener Lift:
Optional Open-Center ” on page 103.
Pressure gauges show
pressure when the openers
are raised.
The hoses are routed incorrectly between pressure control valve and opener lift cylinders.
See “
Opener Lift: Standard Closed-Center ” on page 102 or “ Opener Lift: Optional
Open-Center ” on page 103.
Transport lock channels will
not stay in position for
transport.
Check u-shaped clip in lock channel. Clip must clasp cylinder rod securely. If necessary,
tighten or loosen clip by turning the bolt on the clip.
Before transporting, check that the hydraulic cylinders have settled against the lock
channels. The weight of the cylinders help hold the lock channels in place.
Hydraulic marker functioning
improperly
(Optional equipment)
Check all hose fittings and connections for air and oil leaks.
Check tractor hydraulic oil level.
Check all bolts and fasteners.
If needle valve is plugged; open valve, cycle markers, and reset the needle valve.
Marker disk does not mark
(Optional equipment)
The maximum marker down float is limited by the slots at the rod end of the marker
cylinder. If the blade does not drop down to follow depressions in the field, make sure the
marker cylinder is fully extended.
The blade may be reversed to pull dirt in or throw dirt out depending on soil conditions.
If a smooth blade does not provide an adequate mark an optional notched (no-till) blade
assembly is available through your Great Plains dealer. Under some conditions, the more
aggressive notched blade will leave a more visible mark.
Chain-debris/retainer clip Be sure retainer clip open end is facing the opposite way of chain travel.
Problem Solution