PC-7612V PC-7614V

Maintenance chart
•
Item Inspecting Regularity
Engine oil Inspection/clean Before commencing work
Replace Initially, after 20 operating hours, and
subsequently every 30 operating hours
Wheel, tightening bolt, hood Visual inspection Before commencing work
Throttle system Functional check Before commencing work
Air filter Gently tap or replace. Monthly (every 50 operating hours)
Dust bag filter Clean or replace. Weekly (every 20 operating hours)
Prefilter Rinse off coarse dirt in running water or
replace, and apply oil.
Daily (every 8 operating hours)
Spark plug Visual check … Clean, adjust, or replace Implement as you think proper
V-belt Visually inspect status of wear (take
care about excessive tension at time of
replacement).
Before commencing work
Fuel tank filter Visually inspect, and replace depending on
level of dirtiness.
Implement as you think proper
Nuts and bolts Visually inspect, and correct. Before commencing work
Be sure to use designated and genuine parts and consumables.
Fault location
Fault System Observation Cause
Cutting disc does not
start turning
Clutch Engine runs Damage to clutch
Engine does not start Ignition system Ignition spark O.K. Fault in fuel supply or compression system, mechanical defect
or with difficulty
No ignition spark STOP-switch operated, wiring fault or short circuit, spark plug or
connector defective, ignition module faulty
Fuel supply Fuel tank filled Incorrect choke position, carburetor defective, fuel supply line bent or
blocked, fuel dirty
Compression system No compression when Cylinder bottom gasket defective, crankshaft seals damaged, cylinder
pulled over
or piston rings defective or improper sealing of spark plug
Mechanical fault Starter not engaging Broken starter spring, broken parts inside of the engine
Clutch Contamination
adheres to clutch and
around parts
Ratchet spring contaminated and opened, have it cleaned
Warm start problems Carburetor Tank filled, ignition
spark existing
Carburetor contaminated, have it cleaned
Engine starts, but dies Fuel supply Tank filled Incorrect idling adjustment, suction head or carburetor contaminated
immediately
Fuel tank vent defective, fuel supply line interrupted, cable or STOPswitch
faulty
Insufficient
Several systems may Engine idling poor Air filter contaminated, carburetor contaminated, muffler clogged,
performance
simultaneously be
affected
exhaust duct in the cylinder clogged
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