Husqvarna 445 - Pressure Testing the Cylinder

English – 49
Repair instructions
WARNING!
After pressure testing the cylinder,
check that the inlet manifold is
eate crrectl therie the a
may be damaged.
7.24 Cylinder – pressure testing
1
Remove:
• cylinder cover
• carburettor
• spark plug
2
Attach both the pressure testing covers. (see gure
61)
3
Loosen the screws on the mufer and press the
rubber sheet 502 54 11-02 between the mufer and
cylinder. Tighten the top two mufer screws.
4
Fit the pressure testing spark plug 503 84 40-02
and connect the pressure testing tool 531 03 06-23.
(see gure 63)
5
Pump the pressure up to 80 kPa (0.8 bar). Wait
30 seconds. The pressure should not be less than
60 kPa (0.6 bar). Remove the cover plates from
the silencer and carburettor, tighten the bolts to the
specied torue. Remove the pressure test nipple
503 84 40-02 and ret the spark plug.
Fig 63
Fig 62
Fig 61