Seed-hawk TOOLBAR 2015 Manuel d'utilisateur télécharger pdf (Page 55)

SEED HAWK

2015 TOOLBAR OPERATOR’S MANUAL50

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 owing 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

owing, 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.

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Seed-hawk TOOLBAR 2015 Manuel d'utilisateur Page 55

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