Husqvarna 570 Workshop Manual page 29

Cleaning and inspection
Clean all parts, including the pump and oil pipe mounts
in the crankcase, and check the following:
1. The taper on the adjuster screw (F) should not have
any wear marks. See fig. 4.
2. The eccentric face on the pump piston (I) should not
have any wear marks. See fig. 4.
3. The gear on the pump piston (I) should be
undamaged. See fig. 4.
4. The oil pump driveʼs worm gear (A) should be
undamged. See fig. 5.
5. The oil pipe (D) should be free from impurities and
the filter clean.
6. The oil hose should be free from impurities and its
seals undamaged.
Assembly
1. Insert the suction pipe (D) in the hole in the
crankcase. See fig. 2 page 28.
2. Put the spring (K), 2 washers (J) on pump piston (I)
and fit in the pump housing. Oil in all parts with chain
oil. See fig. 3 page 28.
3. Use a screwdriver to press in the pump piston and
screw home the adjuster screw (F). See fig. 3
page 28.
4. Fit the cover plug (H). See fig. 3 page 28.
5. Fit the clip (E). See fig. 3 page 28.
6. Fit the oil pump in the crankcase. Fit the oil hose
with seals. See fig. 2 page 28.
7. Tighten the bolts to 5 Nm. See fig. 6.
8. Fit the oil pump gear. See fig. 6.
9. Assemble the following parts:
• The centrifugal clutch. See page 27.
• The other parts of the saw. See the Operator's
Manual.
10. Exercise care to ensure that the clutch drum and oil
pump gear fit in the drumʼs cut-out. See fig. 7.
11. Adjust the pump feed rate as described below.
12. Refill with chain oil and check the lubrication.
See the Operator's Manual.
Adjusting the pump feed rate
See Operator's Manual.
LUBRICATION SYSTEM
I
Fig. 4
A
Fig. 5
5Nm
A
5Nm
Fig. 6
Fig. 7
F
D
C
English – 29