SAE 10W-30 is recommended for general use in the summer (for temperatures above 0°C) -
recommended oil CASTROL GARDEN 4T.
SAE 5W-40 is recommended for general use in winter (for temperatures below 0°C) -
recommended oil CASTROL MAGNATEC 5W-40.
Choose optimal oil viscosity that match the ambient temperature at which you are
going to operate the machine (fig. 10). DO NOT MIX OILS!
OIL LEVEL CHECK
CAUTION: Only check oil level with cold engine.
1. Place engine level. Check the oil level with the engine stopped and cooled down.
2. Remove the oil filler cap/dipstick (fig. 11A) and wipe it clean.
3. Insert the oil filler cap/dipstick into the oil filler neck until it stops, but do not screw it in. Then
remove it. Now read off the oil level on the dipstick.
4. If the oil level is near or below the lower limit mark on the dipstick, remove the oil filler cap/
dipstick, and fill with the recommended oil into the engine between the upper and lower
mark. Do not overfill.
5. Reinstall the oil filler cap/dipstick.
HIGH ALTITUDE
• At high altitude, the standard carburetor air-fuel mixture will be excessively rich. Performance
will decrease, and fuel consumption will increase.
• High altitude performance can be improved by installing a smaller diameter main fuel jet in the
carburetor. If you always operate the machine at altitudes higher than 1600 m above sea level,
have your authorized dealer install the high altitude main jet.
• This machine will not perform well at high altitudes without proper adjustment. Contact
a authorized service center for adjustment information.
CHARGING THE BATTERY (ONLY HECHT 5534 SWE)
• The battery must be carefully maintained to ensure long life.
• The machine battery must always be charged: before using the machine for the first time after
purchase; before leaving the machine disused for a long period (> 6 months); before starting
up the machine after a long period of disuse.
The longest charging time interval is 1 month.
• Carefully read and observe the battery recharging instructions. Failure in following the
instructions or in charging the battery could permanently damage the battery cells.
• A flat battery must be recharged as soon as possible.
• Replace the battery (accumulator) for original one every 12 months, preferably do this
before the beginning of new season.
IMPORTANT! Recharging must be done using a battery charger at constant voltage.
Other recharging systems can irreversibly damage the battery.
WARNING! While charging the battery releases explosive and toxic fumes. Charge
the battery in a well-ventilated place. DO NOT SMOKE AND KEEP AWAY FROM
OPEN FLAMES AND SPARKS.
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