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narrow, adjust it. If the spark plug is clogged with carbon or fouled, clean it thoroughly
or replace it. Use an exact replacement.
Supply of grease and lubricant
Supply grease to the gear case through the grease hole every 10 to 20 hours (Shell
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alvania No.3 or equivalent)
Suction head in the fuel tank – Every 50 hours (Monthly)
The felt filter (1) of the suction head is used to filter the
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fuel required by the carburetor.
A periodical visual inspection of the felt filter is to be
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conducted. For that purpose, open the tank cap, use a
wire hook and pull out the suction head through the
tank opening. Filters found to have hardened, been
polluted or clogged up are to be replaced.
Insufficient fuel supply can result in the admissible
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maximum speed being exceeded. It is therefore
important to replace the felt filter at least quarterly to
ensure satisfactory fuel supply to the carburetor.
Cleaning of muffler exhaust port – Every 50 hours
(Monthly)
Check of muffler exhaust port (2) regularly.
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If it is clogged by carbon deposits, carefully scratch the
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deposits out with a suitable tool.
Do not allow carbon to fall into engine ports.
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Replace fuel lines: Every 200 hours (Yearly)
Overhaul engine: Every 200 hours (Yearly)
Replace packing and gaskets with new ones: Every time engine is reassembled.
Any maintenance or adjustment work that has not been included and described in this
manual is only to be performed by Authorized Service Agent.
Daily checkup and maintenance
To ensure a long service life and to avoid any damage to the equipment, the following
servicing operations should be performed at regular intervals.
Before operation, check the machine for loose screws or missing parts. Pay particular
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attention to the tightness of the cutter blade screws – Every 8 hours (Daily)
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