Dolmar HT-2350D Manuel D'instructions page 16

STORAGE
MAINTENANCE SCHEDULE
After each refuelling
Before each use
Every 50 hours
Weekly
Yearly
Biyearly
Before long term storage
FAULT LOCATION
Fault
Engine not starting or
under difficulties
Warm start problems
Engine starts but dies
immediately
Insufficient performance
Throttle lever
I-O switch
Engine assembly,
screws and nuts
Air filter
Cooling air duct
Cutting tool
Idling speed
Fuel tank
Gear case
Spark plug
Fuel pipe
Tank cap
Fuel tank
Carburetor
Suction head
System
Ignition system Ignition spark is present
No ignition spark
Fuel supply Fuel tank filled
Compression Inside of engine
Outside of engine
Mechanical fault Starter not engaging
Tank filled Ignition spark
existing
Fuel supply Tank filled
Several systems may Engine idling
simultaneously be
affected
- When keeping the machine in storage for a long time, drain fuel from the fuel tank
and carburetor, as follows: Drain all fuel from the fuel tank.
- Remove the spark plug and add a few drops of oil into the spark plug hole. Then,
pull the starter gently to confirm that oil film covers inside of the engine and
tighten the spark plug.
- Clear dirt or dust from the cutter blade and outside of the engine, wipe them with
a oil-immersed cloth and keep the machine at a place as dry as possible.
Check the function
Check the function
Visually check for damage and tightness
Check for general condition and security
Clean
Clean
Check for damage and sharpness
Inspection (cutting tool must not move)
Check and clean
Supply grease
Check and replace if necessary
Replace
Replace
Empty and clean
Operate until the engine runs out of fuel
Replace
Observation
Faulty fuel supply or compression system, mechanical
defect
I-O switch operated, wiring fault or short circuit, spark
plug or connector defective, ignition module faulty
Incorrect choke position, carburetor defective, suction
head (gas line filter) dirty, fuel supply line bent or
interrupted
Cylinder bottom gasket defective, crankshaft seals
damaged, cylinder or piston rings defective
Improper sealing of spark plug
Broken starter spring, broken parts inside of the engine
Carburetor contaminated, have it cleaned
Incorrect idling adjustment, suction head or carburetor
contaminated
Fuel tank vent defective, fuel supply line interrupted,
cable or I-O switch faulty
Air filter contaminated, carburetor contaminated, muffler
clogged, exhaust duct in the cylinder clogged
16
Cause