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Smoracy, LLC
MODEL 3680 TROUBLE SHOOTING
TROUBLE SHOOTING GUIDE
PROBLEM - ENGINE WILL NOT START:
Possible Cause Possible Solutions
Battery Disconnect Switch off. Turn switch on.
Battery cables cut or corroded terminals. Inspect battery cables for damage, repair or replace
as necessary. Clean battery terminals.
Dead or low battery. Charge or replace battery.
No power to ignition switch. Reset circuit breaker in engine gauge panel.
Circuit breaker tripped.
No power to engine gauge panel. Check in-line fuse near engine starter and replace if
Main fuse blown. necessary. This fuse protects the entire engine
gauge panel and its functions.
PROBLEM - ENGINE TURNING BUT WILL NOT START:
Possible Cause Possible Solutions
Engine disable plug removed. Check the maintenance door engine disable plug to
ensure that it is installed and operating correctly.
No fuel. Fill fuel tank and prime engine fuel system.
Problem with the engine or the Consult engine Manufacturer’s manual.
engine control panel.
PROBLEM - NONE OF THE HYDRAULIC SYSTEMS ARE WORKING:
Possible Cause Possible Solutions
Hydraulic Shut Down Switch Make sure all Hydraulic Shut Down Switches
are pulled out.
Shut-Off Valve on hydraulic oil tank not on. Turn Shut-Off Valve on.
Blown fuse for solenoids of Hydraulic Shut Replace in-line fuse near engine gauge panel if
Down system. These solenoids valves powered by Cat or Cummins. John Deere units
need to be energized or the oil is pumped have the fuse near the starter.
back to tank.
Loss of power to Hydraulic Shut Down circuit. John Deere equipped machines only have an
auxiliary solenoid near the engine starter to supply
power for this circuit. Check to make sure you are
getting power through this solenoid.
Low oil in hydraulic tank Keep oil level at 7/8 full.
Pump belts missing if so equipped. Replace pump belts.
Broken pump shaft. Repair or replace pump.
Oil strainer in Hydraulic Oil Tank is plugged. Remove and clean or replace strainer.
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