GREAT PLAINS Yield-Pro PL5800, Operator'S Manual

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Great Plains | 411-474M | 12/17/2019 60
PL5800 Planter Table of Contents Index Maintenance
The marker hydraulics must be free of air to fold
properly. If the markers fold in jerky, uneven motions,
follow these steps:
1. Check fluid in the tractor hydraulic reservoir and
fill to the proper level.
2. Set the solenoid to marker operation.
3. With both markers lowered into feild position,
loosen the hydraulic hose JIC fittings at the rod
and base ends of the marker cylinders. If
applicable, loosen fittings on the back side of the
sequence valve.
4. With the tractor idling, activate the tractor
hydraulic valve until oil seeps out around a
loosened fitting. Tighten that fitting.
5. Reactivate the tractor hydraulic valve until oil
seeps out around another loosened fitting.
Tighten that fitting.
6. Repeat the process until all loosened fittings
have been bled and tightened.

Chain Maintenance
Inspect and lubricate chains regularly. Lubricate
chains any time there is a chance of moisture and
when being stored at the end of the planting season.
The slack of new chains tends to increase during the
first hours of the operation due to seating.
Check the slack at fixed idlers within the first 8 hours
of operation due to seating.
Check the slack at fixed idlers within the first 8 hours
of operation and tighten idlers as necessary.
Check the clack at spring-operated idlers seasonally.
1. Measure the span (1) for allow able slack.
Locate the longest span of each chain (usually
the span which does not run through the idlers).
2. Determine the ideal slack.

Long chains over 36 inch (91 cm) : 1/4 in/ft (2.1 cm/
m)

Vertical short chains : 1/4 in/ft (2.1 cm/m)

Horizontal short chains : 1/2 in/ft (4.2 cm/m)
3. Measure the current slack (2):
At a right angle to the chain span at the center of
the span, deflect the chain in both directions. The
slack is the distance of the movement.
4. Adjust the idlers for ideal slack.
Whenever installing a chain, make sure the chain clip
at the removable link is oriented to minimize snags.
5. Install the chain clip with the open end facing
away from the direction of chain travel (3).

Row Unit Side Gauge Wheels
Maintenance
Sharp Objects Hazard
Disks are sharp and may result in injury.
Wear hand protection when working in this
area.
1. Lift the side gauge wheel off the ground.
Move the tire in and out to check for end play.
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