Cylinder - Pressure Testing; Crankshaft Complete - Husqvarna 455 Rancher Workshop Manual
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Also See for 455 Rancher:
- Operator's manual (148 pages) ,
- Workshop manual (40 pages) ,
- Operator's manual (128 pages)
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Cylinder – pressure testing
1
Remove:
• cylinder cover
• carburettor
• spark plug
2
Loosen the screws on the muffl er and press the
rubber sheet 502 54 11-02 between the muffl er
and cylinder. Tighten the top two muffl er screws.
3
Attach both the pressure testing covers. See the
fi gure.
4
Fit the pressure testing spark plug 503 84 40-02
and connect the pressure testing tool 531 03 06-23.
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
specifi ed torque. Remove the pressure test nipple
503 84 40-02 and refi t the spark plug.
WARNING!
After pressure testing the cylinder,
check that the inlet manifold is
seated correctly, otherwise the saw
may be damaged.
Crankshaft complete - dismantling
1
Remove the following:
• chain and bar
• clutch cover
• cylinder cover
• starter assembly*
• centrifugal clutch*
• throttle pushrod
• carburettor*
• silencer*
•
handle system
• hand guard
• piston and cylinder*
* See special instructions.
2
Lift the crankshaft completely out of the crankcase.
Repair instructions
37
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