Alternator Drive Belts; Back-Up Camera; Engine Air Filter Restriction Indicator; A/C And Heating System Air Filters - PREVOST X3-45 Commuter 2020 Operating Manual

FIGURE 12:
FIGURE 13: BELT TENSIONER
Belt tensioning is applied through the tensioner
adjustment screw B. Loosen lock bolt A prior
adjustment. Tighten lock bolt A to 43 lbf-ft once
completed.
Belt tension should be within the following values:
New belts: 90-100 lbs.
l
Used belts: 75-85 lbs.
l
Check belt tension using a belt strand tension
gauge.
Once adjustment completed, allow the
l
engine to run for about ten minutes. Check
belt tension and adjust if needed.
Do not treat belts with any compounds. Keep
l
belts dry.
Periodically inspect belt and pulleys for wear
l
or damage;
FIGURE 14:

ALTERNATOR DRIVE BELTS

Automatic belt tensioners keep the correct
tension so these belts do not require adjustment.

BACK-UP CAMERA

The back up camera is located on the rear
cap. To clean the camera's protective glass,
spray with soapy water. Wipe with a clean damp
rag or wiper blade.
DOB 1300-1556
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 15: AIR FILTER RESTRICTION INDICATOR

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.
CAUTION
Be sure not to reverse filter upon installation.
PA-1639 Operator's Manual 2020 X3-45 Commuter
Care and Maintenance 8-11