GREAT PLAINS SPARTAN II, Руководство оператора, Страница: 39 / 131

Great Plains | 166-486M | 2020/10/08 32
Spartan
II
607 Table of Contents Index Operation
Lowering
Falling Hazard
Wing gauge wheels, caster wheels, and
seed cart wheels, may have little or no
weight on them, and may turn suddenly if
used as a step. Do not stand on tires when
implement is lowered to avoid serious injury.
1. Check that maintenance lock channels are not
installed on the gauge wheel lift cylinders.
2. Check that the transport lift lock (1) is
disengaged.
 If lock cylinder (2) is extended, perform a brief
unfold operation (extend the fold circuit) to
retract the lock cylinder.

If the lock cylinder will not retract, perform a
brief lift operation (extend the lift circuit) to
free the lock block. If this fails to disengage
the
lock block, see “
Lift Lock
Troubleshooting ” on page 108.
3. Make sure all persons are clear of opener
sections.
4. Unfold the drill before lowering (page 29).
5. Activate dedicated lift circuit (normally retract).
Raising
Wing Pinch and Crushing Hazards
The lift lock prevents the center section
from lowering, but only hydraulic oil
prevents wings from lowering at the tips.
Use wing locks to hold wings raised for
extended periods.
Equipment Damage Risk
Always raise the implement for tight turns
and backing. Tight turns with openers
lowered may damage openers. Backing
with openers lowered causes row unit
plugging, and may cause opener damage.
Equipment Damage Risk
On tractors with electronic timer controls for
hydraulic circuits, lift timers must be set to
no more than 2 seconds longer than
needed to fully raise drill. To reduce oil
heating and system wear, do not set for
continuous mode.
1. Make sure all persons are clear of opener
sections.
2. Activate dedicated lift circuit (normally extend).
3. Extend the cylinders until all sections are raised.
Hold for a few seconds to re-phase the cylinders.
4. Set the circuit to neutral to temporarily hold the
sections at raised.
During field turns, the transport lift lock does not
automatically engage during lift. The lock does
automatically engage during full fold. To engage the
lock without folding, follow these steps:
5. Make sure all persons are clear of the opener
sections.
6. Have an observer watch the lock cylinder.
7. Press the
Enable Fold
softkey on the monitor.
8. Activate the fold circuit for folding (typically
retract). Hold at fold until the observer signals
that the lock cylinder has extended. The lock
cylinder normally extends early in the fold cycle.
9. Gradually move the fold circuit to neutral, to allow
any wing folding to reverse, but not cause the
lock cylinder to retract.
10. Lower the implement until stopped by the lock.
This also prevents the lock from releasing. Set
the lift circuit to neutral.
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31248
Lift Lock Engaged