Summers ULTIMATE NT - Mechanical Troubleshooting

SECTION 4 - TROUBLESHOOTING
4.4
4.2. MECHANICAL TROUBLESHOOTING
PROBLEM PROBABLE CAUSE CORRECTION
1. Boom leads or
lags too much
in relation to
cart.
A. Spring clevis adjustment is incorrect.
Adjust Spring clevis so when spring is compressed the coils
never touch. See Pages 2.4-6.
B. Eye bolts are out of adjustment.
Boom lead is properly adjusted when spring clevis is com-
pressed and there is zero boom lead. See Pages 2.4-6.
2. Inner and outer
boom sections
are not lined up
with each other.
A. Stop bolts out of adjustment. Adjust stop bolts and lock nuts.
B. Rubber bumper loose or missing. Replace rubber bumper.
C. Stop bolts broken or missing. Repair broken or missing adjustment bolts.
3. Outer booms
slam back to
eld position
after encounter-
ing an obstruc-
tion.
A. Restrictor check valves missing or installed
improperly.
One way restrictor check valves are installed in the outer
boom fold cylinder. The slot should be up in the blind end
and slot down in rod end.
B. Rubber bumpers missing. Replace rubber bumpers.
C. Cylinder mounting springs out of adjustment.
Adjust cylinder-mounting eyebolt so springs are preloaded
and adjustment is centered. Check so boom unfolds and folds
completely and look for worn parts.
4. Outer booms do
not self-return
to eld position
after encounter-
ing an obstruc-
tion.
A. Restrictor check valves missing or installed
improperly.
One way restrictor check valves are installed in the outer
boom fold cylinder. The slot should be up in the blind end
and slot down in rod end.
B. Accumulator not functioning properly.
Check accumulator for gas charge. Replace if charge has
escaped.
C. Wind or travel speed excessive. Slow travel speed down.
5. Booms bounce
excessively
when spraying.
A. Terrain too rough or uneven. Slow travel speed to factory recommended 5-8 MPH.
B. Nitrogen charged accumulator not function-
ing properly.
Dangerous. Check nitrogen pressure, replace or recharge.
C. Cable out of adjustment. Adjust cable to reduce boom bounce.
6. Boom suspen-
sion does not
work.
A. Operator is using cylinder stops to control
boom height.
Remove vertical height cylinder stops. Boom must be held on
accumulator.
B. Suspension accumulator has an inaccurate
nitrogen charge.
Replace or recharge accumulator.
C. Hydraulic system leak. Repair hydraulic leak.
D. Tire pressure incorrect. Adjust tire pressure to specications.
7. Boom breaks
away too easy.
A. Latch clips are too loose. Adjust latch clips.
B. Outer boom cable is too tight. Loosen cable.
C. Wind or travel speed excessive. Slow travel speed down.
D. Cylinders not fully charged with oil. (After
breakaway function is utilized, cylinders need
to be recharged to be fully reset.)
Turn ON Outer Boom circuit & hold hydraulic lever for 10
seconds to fully extend cylinders. Turn OFF Outer Boom
circuit to re-engage breakaway function.