Seed Hawk TOOLBAR 2014 - Manual (Page 29)

SEED HAWK ® 2014 TOOLBAR OPERATOR’S MANUAL SEED HAWK ® 2014 TOOLBAR OPERATOR’S MANUAL 50
Cannot maintain packing pressure or shanks will not
stay up in transport
Probable Cause Solution
Seal damaged in shank
cylinder. Check o-rings on
meter engage valve also
make sure meter engage
switch is shut off.
Pressure shanks up and keep locked on. Undo
main bridle hoses on the rod end of cylinder on
both ports. If oil is flowing out of a hose, then
it is that rank on that wing that has a seal leak.
Move down that rank, undoing the hoses on
the rod end of each cylinder. When the oil quits
flowing, it is the previous cylinder with the faulty
seal. Replace cylinder seal(s) and repeat process
in case of more than one faulty seal.
Wing hydraulic system does not maintain pressure
Shanks will not go down under pressure
Wings do not rise
Probable Cause Solution
Pivot points are too tight
or seized. Loosen up pivot points about 1/8 of a turn. Don’t
over loosen them.
Probable Cause Solution
The “IN” pressure gauge
indicates less than 1200 psi. Inspect quick couplers to ensure complete en-
gagement.
Check 7-plex wing down
value (only on 7-plex
machines (72 ft. and up)).
Remove, inspect o-rings, clean and replace car-
tridge if necessary.
Wing lift cylinder piston
leaking. Remove hose from rod end of cylinder. If oil dis-
charges, seal is leaking. Remove and replace seal.
Probable Cause Solution
The “IN” pressure gauge
indicates less than 1200
psi for smaller implements
and less than 2100 psi for
larger implements.
Inspect quick couplers to ensure complete en-
gagement. Check to see that the circuit is putting
out enough pressure.
Wing cylinder piston seal
leaking. Remove hose from rod end of cylinder. If oil dis-
charges, seal is leaking. Remove and replace seal.
51
7.2 Troubleshooting SCT ® Toolbars
Gates will not open/close
Openers will not lift
Random opener sections lifting
Wing down switch will not work
Probable Cause Solution
No hydraulic pressure to
meter block.
Engage hydraulic circuit (wing down).
Check SCT ® node Check lights on front of node
Meter block PRV (pressure
relief valve) set too low. Increase PRV pressure until gates cycle (do not
exceed 500 psi).
No power at coils.
Turn master switch on.
Check fuses.
Check connections at coil and SCT
® node.
Probable Cause Solution
No hydraulic pressure to
meter block.
Engage hydraulic circuit (opener).
Meter block PRV (pressure
relief valve) set too low.
Increase pressure (factory set to 2200 psi).
No power at coils.
Turn master switch on.
Check fuses.
Check connections at coil and SCT
® node.
Probable Cause Solution
Improper look aheads.
Ensure that the look ahead number is not a neg-
ative number.
Agressiveness set too high. Turn aggressiveness off.
Improper drill setup.
Check drill setup.
Probable Cause Solution
No hydraulic pressure. Engage hydraulic circuit (wing down).
Master switch on. Turn master switch off (unfold only).