Allmand NIGHT-LITE V Serie Manual Del Usuario página 25

8. Clean the reflector (D, Figure 27) and lens.
9. Install the correct replacement bulb. See Specifications
.
10. Install the support clip and screws.
11. Install the silicone gasket and lens. Replace if worn or
damaged.
12. Install the lens channel and screws.
13. Test the new bulb to ensure proper operation.
27
Checking the Ballast
DANGER
Shock Hazard
Capacitors are capable of discharging high voltage that will
result in death or serious injury. Always turn off the light
switch, shut down the engine and allow capacitors time to
discharge before servicing.
The ballast consists of a ballast transformer, and a capacitor.
Generally, the capacitor will be the cause of a ballast
problem.
To check whether the ballast transformer or capacitor has
failed:
1. Turn off the lights and shut down the engine.
2. If the light tower is in the raised position, lower the light
tower.
3. Allow capacitor time to discharge.
4. Remove front cover from the trailer.
5. Determine which ballast corresponds with which fixture.
6. Remove the screws (C, Figure 28) and cover (D) from the
ballast box corresponding to the affected fixture.
Note: Figure 28 shows the items for light fixture 3. Other
fixtures are similar.
7. Check the transformer:
1. Start the engine and turn on the light.
2. Using an AC voltmeter capable of safely measuring
up to 1,000 volts, connect one probe of the voltmeter
to the ground screw where the green wire is
connected (A, Figure 28), and the other probe to the
input side (white wire labeled "Cap") of the capacitor
(B).
3. The voltmeter should read 550 to 600 volts.
4. Turn off the light and shut down the engine.
5. If the voltage is not in this range, replace the
ballast transformer. See Replacing The Ballast
Transformer .
8. Check the capacitor:
1. Disconnect the red wire (E, Figure 28) and the black
wire (F) from the 2-port lever locks.
2. Start the engine.
3. Using an AC voltmeter capable of safely measuring
up to 1,000 volts, connect one probe of the voltmeter
to the ground screw where the green wire is
connected (A, Figure 28), and the other probe to
the output side (white wire labeled "Lamp") on the
capacitor (G).
4. The voltmeter should read 360 to 440 volts.
5. Shut down the engine.
6. Re-connect the red wire (E, Figure 28) and the black
wire (F) to the 2-port lever locks.
7. If the voltage is not in this range, replace the
capacitor. See Replacing the Capacitor .
9. Complete replacement of failed part(s).
10. Re-install the cover (D, Figure 28) with screws (C).
11. Test the new ballast transformer and / or capacitor to
ensure proper operation.
If you have difficulty in performing this procedure,
or if the results of this procedure do not match those
described, contact your Allmand Dealer, or the Allmand
Service Department.
25