Husqvarna 572XPG - Maintenance - Page 30; General Maintenance and Carburettor; Chainsaw Safety Equipment Checks

30 - English
WARNING! Insucient lubrication of the
chain can result in the chain breaking,
which can cause serious or even life-
threatening injury.
13 Lubrication system
A
B
B
C
D
E
F
H
I
J
G
The lubrication system consists of the following parts:
• Oil pump.
• Suction hose with lter.
• Oil hose with integrated seals.
All the above parts are described in sequence under the
headings that follow.
13.1 Dismantling
1. Empty and clean the oil tank.
2. Dismantle the chain, bar, guide bar plate, clutch drum
and centrifugal clutch. See chapter Centrifugal clutch.
3. Dismantle the oil pump gear (A). See gure 1.
4. Unscrew the two screws (B) and lift up the oil pump
from the crankcase. See gure 2.
5. Pull out the oil hose (C) from the oil pump. See
gure 2.
6. Use pointed pliers and carefully pull up the suction
hose (D) with lter. See gure 2.
7. Remove the clip (E) and unscrew the adjustment
screw (F). See gure 3.
8. Use a pair of pliers and push on the pump piston (G)
so that the cover plug (H) and pump piston can be
removed. See gure 3.
9. Use a pair of pliers and pull out the spring (I) and 2
washers (J). See gure 3.
13.2 Cleaning and inspection
Clean all parts, including the pump and oil hose mounts
in the crankcase, and check the following:
1. The taper on the adjuster screw (F) should not have
any wear marks. See gure 4.
2. The eccentric face on the pump piston (I) should not
have any wear marks. See gure 4.
3. The gear on the pump piston (I) should be
undamaged. See gure 4.
4. The oil pump drive’s worm gear (A) should be
undamaged. See gure 5.
5. The suction hose (D) should be free from impurities
and the lter clean. See gure 5.
6. The oil hose (C) should be free from impurities and its
seals undamaged. See gure 5.
Fig. 1
Fig. 2
Fig. 3
A
D
C
Fig. 4
Fig. 5
G
F
Lubrication system