Husqvarna 562 XP G Workshop Manual - Page 40

Repair Instructions Pressure testing the carburettor Pressure testing should be carried out with the carburettor fully assembled. Testing should always be carried out after the carburettor has been repaired, but a test can also be made for troubleshooting before dismantling. Option 1 See the figure and carry out the check as follows: 1 Connect pressure tester to the carburettor fuel inlet. 2 Submerge the carburettor into a container with water. See figure 43. 3 Pump up the pressure to 20 kPa. 4 No leakage is permitted. If a leakage occurs refer to the table below. Option 2 1 Plug the connections to the fuel inlet. 2 Create a vacuum to the purge nipple on the carburettor. No leakage is permitted. In the case of leakage, leakage spray can be used even it if is difficult. Try and identify where the spray is absorbed. It can be used to show leakages in main jets, idling needles, measuring cover gaskets and measuring diaphragms, and autotune gaskets. Fig 43 Leak in Fault with Diffuser jets Leak in the impulse pipe Ventilation hole on the metering unit. Needle valve Pump membrane Control membrane Fitting on the saw 1 Press the connector together as outlined in figure 44 and push it into place in the holder. Fig 44 40 - English Fig 45