Maintenance and Lubrication
30
3P500, 3P500V, & 3P600
313-517M
2018-06-12
Seed Flap Replacement
Refer to Figure 21
To replace a seed flap
, use needle nose pliers or
similar tool to grasp “T” top of flap. Pull upward to remove
flap from metal bracket
.
Push new seed flap
down through metal bracket
until flap snaps into place with “T” top resting on top of
bracket.
If a Seed-Lok
®
or Keeton
®
seed firmer is also installed, it
may be necessary to shorten the flap.
Chain Maintenance
Initially check the drive chains after the first 10 hours of
drill use. The slack of new chains tends to increase
during the first few hours of operation due to seating.
Thereafter, check the chains every 100 hours.
Lubricate chains any time there is a chance of moisture,
and when being stored at the end of the planting season.
Chain Slack
Refer to Figure 22, which, for clarity, greatly exaggerates
slack, and omits the idlers.
1.
Measure the span
for allowable 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 inches / 91 cm):
1
/
4
in. per ft (21 mm/m)
Vertical short chains:
1
/
4
in. per ft (21 mm/m)
Horizontal short chains:
1
/
2
in. per foot (42 mm/m).
3.
Measure the current slack
:
Acting 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 mounting a chain, make sure the clip at the
removable link is oriented to minimize snags.
Refer to Figure 23 (arrow shows chain direction)
Install clip with open end facing away from direction of
chain travel (shown by gray or striped arrows in chain
routing diagrams).
Figure 21
Seed Tube Flap
31047
2
1
1
2
1
2
Figure 22
Measuring Chain Slack
27264
2
1
1
Figure 23
Chain Clip Orientation
26482
2
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