Highway Equipment Company NEW LEADER NL450C, Руководство пользователя

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NEW LEADER
49
NL450C
Please Give Part No., Description
& Unit Serial No.
307306-B
Page Rev. A
TROUBLESHOOTING CONTINUED
Reason: Correction:
5. Worn pump. With flow meter arranged to check relief valve setting, open
load valve fully. Read flow rate with engine running at field
operating speed. Close load valve until pressure reads 2000
PSI (1378 bar). Flow rate should not decrease more than ten
percent. If flow loss is greater, replace pump.
6. Conveyor relief valve open to return line. Using relief valve testing adapter and flow meter, test valve
for opening pressure. If not 3100 PSI (214 bar), replace relief
valve.
7. Jammed or frozen spinner motors. Free up. If not possible, replace as required.
8. Jammed or frozen conveyor. Free up conveyor.
9. Jammed or frozen conveyor hydraulic
motor.
Replace motor.
10. Conveyor hydraulic motor shaft key
sheared.
Replace key.
11. Pump speed is not adequate to provide
sufficient flow to maintain spinner speed.
Increase engine speed.
12. Involves conveyor control valve timing. Adjust timing of servo valve so conveyor will stop when valve is
in the off position.
13. Defective spinner control valve. Check connections on PWM spinner valve. Manually override
PWM valve and test. If machine functions properly, replace or
flush debris from small PWM cartridge.
14. Conveyor switch is on and controller is
picking up speed input.
Turn conveyor switch off. Verify speed reading on monitor. If
displaying speed, see # 20.
15. Excessive oil is being pumped. Set tractor hydraulics to proper flow.
16. Worn motor (spinner or conveyor). Motor heats up at an excessive rate (check for this heating
when system is cold). Replace motor.
17. Improper or deteriorated hydraulic oil. Replace hydraulic oil with proper specification oil and replace
filter.
18. Pinched or obstructed hose, hydraulic line
or fitting.
Clear obstruction or replace part. Straighten kinked hoses.
19. Driving too fast for application rate. Shift tractor transmission to a lower gear. Will not normally
occur if within maximum application rates.
20. Defective radar/GPS Antenna. Check speed on console. Repair or replace radar/GPS
Antenna
21. Involves the controller. Refer to control manual.
22. Tractor PTO is not adequate to maintain
proper PTO speed.
Adjust engine speed to maintain proper PTO RPM.
23. Cab control is for conveyor only. Spinners
run anytime vehicle engine is running, PTO
driveline is engaged and spinner control
valve is in a running position.
None required. This is a normal condition. To stop spinners, set
spinner control valve at “0” position, disconnect PTO driveline,
or shut off vehicle engine.
TROUBLESHOOTING