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Owner’s Manual
TPE-2501,TPE-2510,TPE-270PF/PN,TPE-250PF
5. Maintenance.
MAINTENANCE, REPLACEMENT, OR RE PAIR OF THE EMISSION CONTROL DEVICES
AND SYSTEMS MAY BE PERFORMED BY ANY NONROAD ENGINE REPAIR
ESTABLISHMENT OR INDIVIDUAL.
Carburetor adjustment (Fig. 3-1)
WARNING!
The cutting attachment may be spinning during carburetor adjustments.
WARNING!
Never start the engine without the complete clutch cover and tube assembled! Otherwise the
clutch can come loose and cause personal injuries.
In the carburetor, fuel is mixed with air. When the engine is test run at the factory, the
carburetor is basically adjusted. A further adjustment may be required, according to climate
and altitude. The carburetor has one adjustment possibility:
T = Idle speed adjustment screw.
Idle speed adjustment (T)
Check that the air filter is clean. When the idle speed is correct, the blade will not rotate. If adjustment is required, close
(clockwise) the T-screw, with the engine running, until the blade starts to rotate. Open (counterclockwise) the screw until
the blade stops.
You have reached the correct idle speed when the engine runs smoothly in all positions well below the rpm when the
blade starts to rotate. If the blade still rotates after idle speed adjustment, contact your service workshop.
NOTE!
Standard Idle rpm is 2500-3000 rpm.
WARNING!
When the engine is idling the blade must under no circumstances rotate.
Air filter (Fig. 3-2)
The air filter must be cleaned from dust and dirt in order to avoid:
• Carburetor malfunctions.
• Starting problems.
• Engine power reduction.
• Unnecessary wear on the engine parts.
• Abnormal fuel consumption.
Clean the air filter daily or more often if working in exceptionally dusty areas.
Cleaning the air filter
Remove the air filter cover and the filter (1).
Rinse it in warm soap suds. Check that the filter is dry before reassembly. An air filter that
has been used for some time cannot be cleaned completely. Therefore, it must regularly be replaced by a new one. A
damaged filter must always be replaced.
Fuel filter (Fig. 3-2B)
Drain all fuel from fuel tank and pull fuel filter line from tank. Pull filter element out of
holder assembly. Replace filter if it appears to be discolored or hardened from use.
The filter has a white, felt-like appearance when new.