Seed-hawk TOOLBAR 2015 Manuel d'utilisateur télécharger pdf (Page 54)

SEED HAWK

2015 TOOLBAR OPERATOR’S MANUAL

7.1 Troubleshooting Toolbars

7.0 Troubleshooting

Probable Cause Solution

Incomplete engagement of

hydraulic quick couplers.

Inspect quick couplers to ensure complete en-

gagement.

Lock valves for shanks are

set in closed position.

Ensure that both lock valves, one at the manifold

and one at the tractor quick coupler, are set to

the open position.

No electrical power to

shank solenoid valve.

Check for broken wire in harness to solenoid

coil.

No electrical power to

shank pressure adjustment

motor.

Check for broken wire to shank pressure adjust-

ment motor.

Tractor hydraulic selector

valve not holding pressure.

Disconnect coupler at Circuit #1. If pressure is

now adjustable, repair the tractor selector valve

(make sure the lever is in working position not

oat).

Solenoid coil

malfunctioning.

Activate solenoid valve manual override. If the

shank pressure responds properly, replace the

coil also check for power going to coil.

Shank solenoid valve

cartridge contaminated.

Remove solenoid valve cartridge per repair in-

structions in the maintenance section of this Op-

erator’s Manual, inspect to make sure all o-rings

are not damaged, then clean and replace.

Shank pressure gauge

malfunctioning.

Remove and replace pressure gauge if not re-

sponding to increase and decrease of pressure.

Cannot Adjust Shank Pressure

Shanks do not maintain trip/packing pressure on hilly

terrain

Probable Cause Solution

The “IN” pressure gauge

indicates less than 1200 psi.

Inspect quick couplers to ensure complete en-

gagement.

Excessive eld operating

speed.

Reduce eld operating speed.

Intermittent electrical

power supply to shank

solenoid coil.

Ensure all electrical connections are fully engaged

and no open electrical circuits to coil.

NOTE: Trip/packing pressure

may be momentarily increased

by activating hydraulic circuit

#1 while passing through a

shallow dip in the terrain.

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Seed-hawk TOOLBAR 2015 Manuel d'utilisateur Page 54

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