LeeBoy-Electric-Screed-Manual-986622-01-2009
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Troubleshooting<br />
Troubleshooting Chart<br />
The troubleshooting chart below identifies the most common symptoms of failure. Use this chart to help identify the<br />
failed component and possible remedies. If the problem persists, see your authorized <strong>LeeBoy</strong> Dealer.<br />
Table 8-1. Troubleshooting Chart<br />
SYMPTOM CAUSE REMEDY<br />
<strong>Screed</strong> heating system will not<br />
operate at all.<br />
<strong>Screed</strong> heats, but one screed<br />
section does not.<br />
When starting the heat system, it will<br />
not stay running long, or at all.<br />
<strong>Screed</strong> is heating, but never gets hot<br />
enough to pave.<br />
Heating system seems to be<br />
working, but the light isn’t on.<br />
Elements have been tested but the<br />
breaker still trips.<br />
Control box power switch not in ON<br />
position.<br />
Main breaker is in tripped position<br />
Element breakers are in tripped<br />
position<br />
Engine not operating at proper<br />
throttle.<br />
Generator malfunction.<br />
<strong>Screed</strong> section not plugged into<br />
bottom of control box out puts.<br />
Element breakers for screed section<br />
in a tripped condition.<br />
Faulty element relay.<br />
Heat system timed out.<br />
Engine not operating at proper<br />
throttle.<br />
Elements improperly clamped.<br />
Generator malfunction.<br />
HEAT ON light is burned out.<br />
Faulty element wiring.<br />
Faulty breaker.<br />
Ensure that the screed control box<br />
power switch is in ON position.<br />
Ensure main breaker is in the “set”<br />
position (Figure 6-11, 2).<br />
Ensure all element breakers are in<br />
their “set” position with no breakers<br />
showing a tripped condition (Figure<br />
6-13, 2).<br />
Ensure the paver is running. Set the<br />
throttle on paver to full engine rpm.<br />
NOTE: Throttle positions less than<br />
full will still produce screed<br />
heat, but at a reduced rate<br />
and temperature.<br />
See generator voltage testing.<br />
Ensure the screed not heating<br />
is plugged into the bottom of the<br />
control box out puts.<br />
Ensure the element breakers for that<br />
screed section are not tripped.<br />
See Testing element relays, or<br />
Testing element resistance.<br />
Check System Timer.<br />
Ensure the paver is running. Set the<br />
throttle on paver to full engine rpm.<br />
NOTE: Throttle positions less than<br />
full will still produce screed<br />
heat, but at a reduced rate<br />
and temperature.<br />
Go over proper element installation<br />
procedures, and ensure elements<br />
are clamped properly.<br />
See Generator speed tuning.<br />
See Generator voltage testing.<br />
Replace the HEAT ON light.<br />
Test or inspect element wiring.<br />
Replace defective breaker.<br />
8-2 <strong>LeeBoy</strong> Model Legend <strong>Electric</strong> <strong>Screed</strong> System