Husqvarna 371XP Workshop Manual page 27

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Cleaning and inspection
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 fig. 5.
2. The pump piston (H) eccentric face does not show signs
of wear. See fig. 5.
3. The pump piston pinion is undamaged. See fig. 5.
4. The oil pump drive worm gear is undamaged. See fig. 6.
5. The oil line is free from obstruction and the sieve is clean.
6. The oil pipe is free from obstruction and the seals are
undamaged.
Reassembly
1. Push the suction pipe (C) into the hole in the crankcase.
See fig. 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 fig. 4.
3. Using a screwdriver, push in the pump piston and screw
home the adjuster screw (E) fully. See fig. 4.
4. Locate the cover plug. (G). See fig. 4.
5. Fit the clip (D). See fig. 4.
6. Fit the oil pump into the crankcase. Tighten the bolts to
5 Nm. See fig. 2.
7. Locate the oil pipe and seals. See fig. 2.
8. Fit the drive wheel. See fig. 7.
9. Replace the following components:
• Chain brake. See page 13.
• Centrifugal clutch. See page 23.
• Chain and guide bar. See instruction book.
10.Adjust the pump feed rate as described below.
11. Refill with chain oil and check lubrication. See instruction
book.
Adjustment of pump feed rate
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 Husqvarna chain oil. If another chain oil
is used, the adjuster should be turned one extra turn outward
in the first three cases.
LUBRICATION SYSTEM
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H
E
Fig. 5
Fig. 6
Fig. 7
Guide bar No. of turns from fully in
-15"
15"-18"
18"-24"
24"-
GB
1
2
3
4
English – 25