PREVOST X3-45 2016, Руководство по обслуживанию, Страница: 107 / 459

Section 06: ELECTRICAL
PA1593
11
FIGURE 11: A/C JUNCTION BOX
2.8 ENGINE REAR START PANEL
This control panel is located in the R.H. side of
engine compartment above the engine air filter.
This control panel includes the engine starter
selector switch, the rear start push button switch
to start engine from engine compartment as well
as the engine compartment lights switch.
FIGURE 12: REAR START PANEL
NOTE
When the ignition switch is set to the "OFF"
position, the electrical supply from the
batteries is cut off, with the exception of the
Fire Detection System, the Engine &
Transmission Electronic Controls, the Battery
Equalizer and the Digital Clock.
2.9 ENTRANCE DOOR & WIPER CONTROL
PANEL
To access the entrance door & wiper control
panel of the right console, remove the panel
under the larger utility compartment at the base
of the windshield.
FIGURE 13: ENTRANCE DOOR & WIPER CONTROL
PANEL
06619
3. BATTERIES
The vehicle is provided with two (2)
maintenance-free Group 8-D 12 volt heavy-duty
batteries connected in series-parallel (Fig. 4 &
9). The top-mounted negative and positive
terminals are tightly sealed to prevent leaks.
Water never needs to be added to this type of
battery. There are no filler caps in the cover. The
battery is sealed, except for small vent holes in
the cover. The vents must not be restricted as
they allow small amounts of gases produced in
the battery to escape. The special chemical
composition inside the battery reduces gassing
to a very small amount at normal charging
voltages. Besides reducing gassing, the special
chemistry greatly reduces the possibility of
overcharge damage.
The vents require keeping the battery in an
upright position to prevent electrolyte leakage.
Tipping the battery beyond a 45
°
angle in any
direction can allow a small amount of electrolyte
to leak out of the vent holes.
WARNING
DO NOT tip battery by more than 45
°
when
carrying or installing the battery.
NOTE
Evidence of electrolyte leakage does not
necessarily mean the battery is defective.
With special cables properly attached to
batteries, the metal surfaces that carry the
current are completely sealed from the
atmosphere. This prevents terminal oxidation
and corrosion that may cause starting and
charging problems. If new cables are required,
sealed terminal cable replacements should be
used to retain the reliability of the original
maintenance-free connections.