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Troubleshooting - 45
TROUBLESHOOTING
Engine
Electrical System
If Check
Engine Will Not Start or Is
Hard to Start
Motion control levers not in the neutral
detent (or neutral lock) position.
Park brake lever unlocked.
Key switch not in proper position.
PTO engaged.
Loose or corroded starter cable
connections.
Stale or improper fuel/fuel level.
Plugged fuel filter.
Plugged air intake filter.
Spark plug wire is loose or
disconnected.
Spark plug not gapped correctly.
Blown 20-amp fuse (main power
circuit).
Carbureted Engines Only: Blown
fusible link (charging circuit).
Electrical problem - dead battery.
Choke adjusted incorrectly. See your
Great Dane servicing dealer.
Engine Will Not Slow Idle Bent or kinked throttle cable.
Bent governor control.
Incorrect governor idle control.
Carburetion problems. See your Great
Dane servicing dealer.
Engine Runs Rough or Stalls Plugged fuel filter.
Plugged air intake system.
Fuel cap vent dirty.
Stale or improper fuel/fuel level.
Spark plug not gapped correctly.
Replace spark plug.
Choke adjusted incorrectly. See your
Great Dane servicing dealer.
Engine Knocks Engine oil level low.
Reduce load. (Slower ground speed.)
Fuel is bad. Fill tank with fresh fuel,
correct octane.
Idle speed too slow.
Engine Overheats Clean cooling fins.
Low oil level.
Do not operate at slow idle. Operate at
full-throttle setting.
Cooling air intake screen is dirty.
Plugged air intake filter.
Operating at too fast ground speed for
conditions.
Engine Lacks Power Plugged air intake system.
Plugged fuel filter.
Improper type of fuel. Drain tank and fill
with correct fuel.
Clean cooling fins to help prevent
overheating.
Replace spark plug.
Engine Uses Too Much Oil Find and correct oil leaks.
Incorrect engine oil.
Plugged oil filter.
Plugged air intake filter.
Engine Backfires Through
Muffler
Throttle should be at low idle for several
seconds before turning off machine.
Leaking/damaged exhaust manifold
gasket.
High Fuel Consumption Improper type of fuel.
Plugged air intake system.
Operating at too fast ground speed for
conditions.
Improper valve clearance. See your
Great Dane servicing dealer.
Restricted air intake system.
If Check
Starter Will Not Work Dead battery.
Blown 20-amp fuse (main power
circuit).
Blown fusible link (charging circuit).
Loose or corroded battery or ground
connections.
Loose or corroded starter cable
connections.
Neutral start switches faulty or not
adjusted properly. See your Great Dane
servicing dealer.
Key switch or starter faulty. See your
Great Dane servicing dealer.
PTO engaged.
Motion control levers and park brake
lever not in proper position.
Battery Will Not Charge Loose or corroded battery or ground
connections.
Blown fusible link (charging circuit).
Battery cables and terminals are dirty.
Dead cell in battery.
If Check