Ribimex Ribiland PR4EN1T Bedienungs- Und Wartungsanleitung Seite 47

Make sure the muffler is well secured and in good condition. A worn or damaged muffler is a fire
hazard and may also cause hearing loss.
6.1.2- Spark Plug
Keep the spark plug and wire connections tight and clean
6.2- Daily Maintenance
Prior to each work day, perform the following:
1. Remove all dirt and debris from the engine, check the cooling fins
and air cleaner for clogging, and clean as necessary. See Fig.E18
2. Carefully remove any accumulating of dirt or debris from the
muffler and fuel tank, dirt build-up in these areas can lead to engine
overheating, fire, or premature wear.
3. Check for loose or missing screws or components. Make sure the
cutting attachment is free of debris and securely fastened.
4. Check the entire machine for leaking fuel or grease.
5. Make sure nuts, bolts, and screws (except carburetor adjusting
screws) are tight.
6.3- 10-Hour Maintenance
CAUTION! Do not operate the machine if the air cleaner or element is damaged, or if the element is
wet or water soaked
Every 10 hours of operation (more frequently in dusty or dirty conditions):
Remove the air cleaner element from the air cleaner housing and clean it thoroughly with soap and
water.
Rinse and dry thoroughly.
Add a few drops of oil and work it in, then reassemble the element. See Fig.E19
6.4- 10/15-Hour Maintenance
CAUTION! Before removing the spark plug, clean the area around the plug to prevent dirt and dust
from getting into the engine's internal parts
Every 10 to 15 hours of operation:
Remove and clean the spark plug. See Fig.E20.
Adjust the spark plug electrode gap to 0.6-0.7mm.
Replace the spark plug as necessary
1. Air Cleaner Housing
2. Air Cleaner Element
Fig.E19
1. Keep cooling fins clean
2. Keep air passages clean
Fig.E20
1. Clean the spark plug and check the gap at
the electrodes
Fig.E18