LUBRICATION SYSTEM
English – 27
Fig. 5
Fig. 6
Svärd Antal varv från botten
-15"
1
15"-18"
2
18"-24"
3
24"-
4
H
E
Fig. 7
Cleaning and inspection
Reassembly
1. Push the suction pipe (C) into the hole in the
crankcase. See fi g. 3.
2. Locate the spring (I), 2 washers (J) and pump piston
(H) in the pump casing. Oil in all components with
chain oil. See fi g. 4.
3. Using a screwdriver, push in the pump piston and
screw home the adjuster screw (E) fully. See fi g. 4.
4. Locate the cover plug. (G). See fi g. 4.
5. Fit the clip (D). See fi g. 4.
6. Fit the oil pump into the crankcase. Tighten the bolts
to 5 Nm. See fi g. 2.
7. Locate the oil pipe and seals. See fi g. 2.
8. Fit the drive wheel. See fi g. 7.
9. Replace the following components:
• Chain
brake.
• Centrifugal
clutch.
•
Chain and guide bar.
10. Adjust the pump feed rate as described below.
11. Refi ll with chain oil and check lubrication.
Clean all components, including the pump and oil pipe
mounts in the crankcase, and check the following:
1. The taper on the adjustment screw (E) does not
show signs of wear. See fi g. 5.
2. The pump piston (H) eccentric face does not show
signs of wear. See fi g. 5.
3. The pump piston pinion is undamaged. See fi g. 5.
4. The oil pump drive worm gear is undamaged.
See
fi g. 6.
5. The oil line is free from obstruction and the sieve is
clean.
The pump feed rate is adjusted with the adjustment screw
(E). The table (right) shows the number of turns outward
from fully home, required for diff erent lengths of guide bar.
The table applies to Husqvarna chain oil. If another chain
oil is used, the adjuster should be turned one extra turn
outward in the fi rst three cases.
Adjustment of pump feed rate
