Maintenance And Lubrication - Grillo HWT 550 TILT Mode D'emploi Et Maintenance

MAINTENANCE AND LUBRICATION

Effective maintenance and correct lubrication help to keep the bush-cutter always in perfect working
order.
4-STROKE ENGINE – For lubrication procedures, follow the instructions provided in the engine manual.
As a general guide, the oil level should be checked every 4 working hours and changed every 50 hours.
Always use SAE 10W30 oil.
For the air filter, check the cartridge every 8 hours or even more often if the environment is very dusty.
Do not clean the cartridge with air jets; if blocked, it must be replaced (fig. 5).
Check periodically that the fins of the cylinder head and cylinder are not blocked; remove the
relative guards and follow the instructions in the engine manual.
USEFUL HINTS FOR GOOD PERFORMANCE:
1. Never leave the machine in the rain.
2. Never strain the engine too much; excessive smoke from the exhaust pipe means it is labouring;
slow down.
3. Clean the air intake filter frequently;
4. Remove any grass deposits from the engine ventilation grille;
5. Square-section strings or other sections with sharp edges should be used; cutting requires less
effort.
6. If the engine starts to labour, use shorter strings.
SPARE PARTS WHICH SHOULD BE KEPT TO HAND
- Cutting head strings, length 53 cm;
- 2 cutting head engagement cables;
- 2 travel cables (for HWT 600 WD only).
HOW TO ORDER SPARE PARTS
Contact our parts centres located in every area; always state the machine's serial number and the code
number of the piece to be replaced.
IMPLEMENTS
GRASS-SCREEN PROTECTION
This protection (fig. 10) is advised for the grass removal in the streets or avenues edges, in order to
avoid the grass to be thrown away.
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