Trouble shooting – Havener Pistol-Grip Hydro Walk-Behind Mower 36, 48 & 52 User Manual
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TROUBLE SHOOTING
Problem
Possible Cause
Solution
Engine Does Not Start
Key in the OFF position
Turn key to ON
Speed control lever not in the
Move lever into the neutral
neutral position
Blade control not in the OFF position
Move blade control lever to OFF
Fuel tank empty
Fill fuel tank
Fuel shut-off valve closed
Open fuel shut off
Safety interlock switch out of
Adjust switches
adjustment
Throttle control not in the choke
Move throttle control to choke
position
Spark plug loose or disconnected
Connect spark plug wire
Bad spark plug
Replace
Dirty air filter
Replace
Clogged fuel filter
Replace
Bad fuel
Drain and refill with fresh fuel
Engine Starts Hard Or
Dirt or water in the fuel tank
Drain and clean fuel tank
Loses Power
Clogged or dirty fuel filter
Replace
Air filter dirty
Replace
Faulty spark plug
Replace
Incorrect oil level
Check and adjust
Engine Overheats
Dirt in fuel line
Clean and replace
Dirty grass screen
Clean
Incorrect oil level
Check and adjust
Dirty air filter
Check and replacement
Faulty spark plug
Replace