Wacker Neuson G2.5A, Руководство по ремонту

Страница: 39 / 96

Portable Generator Repair G 2.5A
wc_tx000207gb.fm
35
5.8 Capacitors
See Graphic: wc_gr000935
ALWAYS handle or test capacitors with the engine stopped. Extremely
high voltage is present at the capacitor terminals while the generator
is in use.
Although the capacitors used in this generator are designed to
discharge when the engine is stopped, it is still a good idea to
discharge them manually before handling. To discharge a capacitor,
place a conductor, such as a screwdriver with an insulated handle,
across the capacitor terminals. Be sure to touch only the insulated
handle. This will short out across the terminals and discharge the
capacitor.
Testing Capacitor
5.8.1 Discharge the capacitor as described above, then disconnect all wire
leads from the terminals.
5.8.2 Check the capacitor charge and discharge readings using an
ohmmeter as described below or use a capacitor checker.
• Set Ohmmeter on R x 10k scale.
• Set meter leads on capacitor terminals. The meter should deflect
momentarily towards zero (fully discharged) and then slowly
climb up to infinity (charging).
• Reverse meter leads and repeat procedure. Results should be
the same.
5.8.3 If meter does not deflect torward zero, or deflects to zero and remains
there, the capacitor is open or shorted and must be replaced.
WARNING
w c _ g r 0 0 0 9 3 5