Engine Air Filter Restriction Indicator; Main Power Compartment Fan Air Filter; A/C And Heating System Air Filters - PREVOST H3-45 VIP Owner's Manual

8-12 Care and Maintenance
soapy water. Wipe with a clean damp rag or wiper
blade.
WARNING
To avoid injury, do not clean camera with
transmission in reverse (R). Shut off engine and
apply parking brake before cleaning.
CAUTION
To prevent scratches to the camera protective
glass, do not wipe with dry rag. Use a clean damp
rag.
ENGINE AIR FILTER RESTRICTION
INDICATOR
An air filter restriction indicator is used to monitor
the vacuum level between the air filter and the
turbocharger inlet. A red marker is displayed when
the air filter is clogged. Replace the air filter when
a red marker is displayed or after a maximum of
two years. Reset by pressing on the indicator's
extremity.
The air filter restriction indicator is located on the
engine air intake duct.
FIGURE 20: AIR FILTER RESTRICTION INDICATOR
MAIN POWER COMPARTMENT FAN AIR
FILTER
For maximum service life of the electrical
components, air filter should be inspected and
cleaned as required in maintenance schedule to
ensure proper ventilation and cooling of the main
power compartment. Clean filter with an air jet in
the opposite direction of normal air flow. Replace
filter when necessary.
Be sure not to reverse filter upon installation.
FIGURE 21:
MAIN POWER COMPARTMENT FAN AIR FILTER

A/C AND HEATING SYSTEM AIR FILTERS

For maximum air conditioning and heating system
efficiency, air filters should be inspected and
cleaned as required in maintenance schedule to
ensure proper ventilation of the evaporator and
heating radiator cores.
To clean filters, remove lint using a nylon brush,
back flush with water, then dry with air.
Do not use high pressure water jet to avoid
damaging filter.
Be sure not to reverse filter upon installation.
Driver's Area Air Filter
The driver HVAC system's air filter is located
behind the dashboard R.H. side and it can be
removed for cleaning or replacement. To gain
access to the A/C filter, unscrew the grill located
at the top step of the entrance door steps, remove
the plastic cover holding the filter and slide out the
air filter.
NOTE
If the windshield is continuously fogged, check
that the driver's air filter is not clogged
PA-1619 Owner's Manual H3-45 VIP
CAUTION
CAUTION
CAUTION