4 Fold Assist Great Plains Manufacturing, Inc.
586-543M 03/06/2013
Light Harness Front
Note: The 890-923C 30’ light harnesses will need removed
and the new 891-327C fold assist harness and 891-
387C light harness-ext lead/valve will need installed,
routing the same way as the old ones were, with same
hose clamps.
Refer to Figure 5
16. Route the light harness-ext lead/valve along same
path as old 30’ light harness. Leave about 3’ in front of
hitch on tractor plug end. Fasten light harness back to
hose clamps like it was and use some plastic ties as
needed.
17. Fasten 2 conductor male weatherpack end of light har-
ness-ext lead/valve to 2 conductor female weather-
pack end (6” lead) of fold assist harness . Attach other
2 conductor male weatherpack (6” lead) to 2 conductor
female weatherpack end of solenoid valve on fixed
bypass valve .
18. Route 120” leads of fold assist harness from center of
machine under front trusses along front center brace bar
to proximity sensor lead . Plug end of 120” fold assist
harness into proximity sensor lead . Fasten har-
nesses up to center brace bar with plastic ties to keep
harnesses from getting pinched when folding.
19. Remove the 848-829C operating instruction decal ,
clean area on which decal is placed, peel backing from
the new 848-972C decal . Press firmly on surface,
being careful not to cause air bubbles under decal.
Light Harness Rear
Refer to Figure 6
20. Route rest of light harness-ext lead/valve along same
path as old 30’ light harness was, back to enhanced
module light harness and plug together. Fasten light
harness back to hose clamps like it was and use plastic
ties as needed.
Note: In order for the fold assist to work, the electrical connec-
tor must be hooked to the tractor. The fold assist will al-
low the operator to run very low, down pressure to the
wings and still have ample pressure to the wings to un-
fold the unit after transporting to the field. If the system
should fail for any reason, the unit may still be unfolded
but the operator may need to close the down pressure
valve, thereby increasing the unfold pressure to the
wings. The operator may need to reset the pressure for
field use.
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Figure 5
Light Harness Front
43033
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4
3
2
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2
1
2
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1
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2
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5
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Figure 6
Light Harness Rear
43034
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6
(4 pages)
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