Ribimex Ribiland PR4EN1T Bedienungs- Und Wartungsanleitung Seite 60

5.7.2- Flush-cutting thick branches (Fig.PP14)
If branch diameter is more than 10cm (4"), first perform undercut (3)
and cross-cut at a distance (A) of about 25cm (10") from the final cut.
Then carry out the flush-cut (4), starting with a relieving cut and
finishing with a cross-cut
VI. MAINTENANCE
6.1- 50-hour Maintenance
Every 50 hours of operation (more frequently in dusty or dirty conditions):
1. Remove and clean the cylinder cover and clean dirt and debris from the cylinder cooling fins.
2. Remove the sprocket cover and inspect the sprocket for excessive dirt, debris, or wear.
Remove the guide bar and clean out the guide bar groove.
3. If the sprocket is excessively worn, replace it with a new one. (See Fig.PP15)
4. Lubricate the gear case. To perform this operation, first remove the gear case from the upper outer
tube as follows (See Fig.PP16) :
- Follow "Disassembling the pole sections" section to remove the upper tube from the gearcase.
- Using a lever-type grease gun, pump lithium-base grease (about 10 grams) into the grease fitting
until you see old grease being purged from the gear case, which can be seen in the outer tube cavity.
Clean up excess grease, and then reassemble the gear case onto the outer tube
CAUTION! Make sure you do not pierce the fuel line with the end of the hooked wire. The line is
delicate and can be damaged easily.
5. Use a wire hook to extract the fuel filter from inside the fuel tank (See Fig.PP17).
Inspect the fuel filter element for signs of contamination.
Replace it with a new one if required. Before reinstalling the filter, inspect the fuel line.
If you find damage or deterioration, remove the unit from service until it can be inspected by a trained
service technician.
Fig.PP15
1. Inspect the Sprocket
6.2- Sharpening the chain
When the cutting edges of the blade become dull, they can be re-sharpened with a few strokes of a
file.
In order to keep the blade in balance, ail cutting edges must be sharpened equally.
In addition, inspect the chain for correct adjustment (more frequently with a new chain).
The chain should feel snug but still pull freely. See Fig.PP18
6.2.1- Sharpening Instructions (Fig.PP19)
IMPORTANT: File all cutters to the same angle and depth! Unequal filing may cause the saw to
Fig.PP16
1. Grease fitting
Fig.PP14
Fig.PP17
1. Filter element
2. Hooked wire