Jonsered CS 2172 WH - Page 25

LUBRICATION SYSTEM
English – 25
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 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 g. 4.
3. Using a screwdriver, push in the pump piston and
screw home the adjuster screw (E) fully. See g. 4.
4. Locate the cover plug. (G). See g. 4.
5. Fit the clip (D). See g. 4.
6. Fit the oil pump into the crankcase. Tighten the bolts
to 5 Nm. See g. 2.
7. Locate the oil pipe and seals. See g. 2.
8. Fit the drive wheel. See 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. Re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 g. 5.
2. The pump piston (H) eccentric face does not show
signs of wear. See g. 5.
3. The pump piston pinion is undamaged. See g. 5.
4. The oil pump drive worm gear is undamaged.
See 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 different lengths of guide bar.
The table applies to Jonsered chain oil. If another chain
oil is used, the adjuster should be turned one extra turn
outward in the rst three cases.
Adjustment of pump feed rate