Husqvarna 455 Rancher II - Pressure Testing the Cylinder

English – 51
Repair Instructions
7.24 Pressure testing the cylinder
1
Dismantle:
• cylinder cover
• carburetor*
• spark plug
* See specic instruction.
2
Attach the cover plate (A) 574 71 14-01 and cover
plug (B) 578 02 13-01. See gure 66b.
3
Loosen the screws on the mufer and press the
cover plate 502 54 11-02 (C) between the mufer
and cylinder. Tighten the screws for the mufer.
See gure 66b.
4
Screw the pressure test connection 503 84 40-02
into place. Connect tool 531 03 06-23 to the nipple.
5
Pump up the pressure to 80 kPa (0.8 bar). Wait
30 seconds. The pressure must not fall below
60 kPa (0.6 bar). Unscrew the cover plates and
plugs. Tighten the screws to the stated torque.
Remove the pressure test connection and t the
spark plugs.
C
A
B
Fig 66b
NOTE!
It is very important that the intake system is
sealed. Otherwise the engine may seize up.