Dolmar PS-3410 User Manual download pdf (Page 37)

Troubleshooting

Malfunction System Observation Cause

Chain does not run Chain brake Engine runs Chain brake actuated.

Engine does not start or Ignition system Ignition spark Malfunction in fuel supply system, com-

only with difculty pression system, mechanical malfunction.

No ignition spark Switch on STOP, fault or short-circuit in the

wiring, plug cap or spark plug defective.

Fuel supply Fuel tank is lled Choke in wrong position, carburetor defective,

suction head dirty, fuel line bent or interrupted.

Compression Inside

Faulty crankcase gasket, radial shaft

system packings defective, cylinder or piston rings

defective

Outside Spark plug does not seal.

Mechanical Starter does not engage Spring in starter broken, broken parts

malfunction inside the engine.

Warm start difculties Carburetor Fuel tank is lled Wrong carburetor adjustment.

Ignition spark

Engine starts, but Fuel supply Fuel tank is lled Wrong idling adjustment, fuel lter or

dies immediately carburetor dirty.

Tank venting defective, fuel

line interrupted, cable defective, STOP switch

defective.

Insufcient power Several systems Engine is idling Air lter dirty, wrong carburetor adjustment,

may be involved mufer clogged,exhaust channel in cylinder

simultaneously clogged

, spark arrester screen clogged.

No chain lubrication Oil tank/pump No oil on the chain Oil tank empty.

Oil guide groove dirty.

Oil-pump adjusting screw incorrectly adjusted.

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Dolmar PS-3410 User Manual Page 37