Seed Hawk TOOLBAR 2013 45 & XL SERIES - Manual (Page 56)

SEED HAWK® TOOLBAR OPERATOR’S MANUAL 56
SYMPTOM
POSSIBLE CAUSE
SOLUTION
Wing hydraulic system
does not maintain
pressure. The “IN” pressure gauge indicates
less than 1200 PSI Inspect quick couplers to ensure complete
engagement.
Check 7plex wing down value. (only
on 7plex machines. 72 feet and up) Remove, inspect o‐rings, clean and replace
cartridge if necessary.
Wing lift cylinder piston leaking. Remove hose from rod end of cylinder. If oil
discharges, seal is leaking. Remove and
replace seal.
Wings do not rise. 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
engagement. 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
discharges, seal is leaking. Remove and
replace seal.
Cannot maintain
packing pressure or
shanks will not stay up
in transport. 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.