Maintenance And Lubrication - Grillo HWT 550 TILT Manual De Instrucciones

TRIMMER-Translation of the original instructions
4) Poor cut quality:
- make sure that the cutting diameter has not reduced too much and that that the strings are not worn
out. Replace them if necessary.
5) The engine does not switch off:
- check that the throttle lever (fig. 1B, no. 1) is fully closed – STOP position.
PERIOD OF LONG-TERM STORAGE
If the wheeled trimmer is to be out of use for a long period:
- fully drain the fuel from the tank.
- thoroughly clean both the machine and the engine.

MAINTENANCE AND LUBRICATION

CAUTION!
- Disconnect the plug before performing any cleaning, maintenance or repair operation. Always
wear suitable clothing and working gloves.
- When the wheeled trimmer or part of it is lifted to carry out maintenance operations, always
remember to use suitable fixing tools such as holders and safety locks.
- When carrying out maintenance operations and/or when the wheeled trimmer is tilted without
safety locks or supports, never leave it unguarded in places where inexperienced people and
children could have easy access to it.
- Protect the environment: carefully dispose of used oils, petrol and any other pollutant
product!
- Effective maintenance and correct lubrication help to keep the wheeled trimmer fully efficient.
RUNNING-IN – Replace the engine oil after the first 20 working hours (fig. 4).
Check that there are neither oil leakages nor loosen screws.
ENGINE OIL
Always follow the instructions provided in the engine manual. Replace the engine oil after the first 20
working hours, then replace the oil every 50 working hours. Always use oil SAE30.
Air filter: check the cartridge every 8 hours or more frequently if the environment is dusty. Do not clean
the cartridge with air jets, if it is clogged it must be replaced (fig. 5).
TIPS FOR PROPER USE
1) Never leave the machine exposed to bad weather conditions.
2) Always clean levers and wires from dust.
3) Never strain the engine. If smoke comes out of the exhaust, slow down.
4) Remove any grass deposits form the engine cooling grid and often clean the air filter.
5) It is highly recommended to use square-section strings or strings with sharp edges
END OF SEASON MAINTENANCE
Thoroughly clean the machine, replace the engine oil and clean the air filter.
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