Primary Fuel Filter; Central A/C Compressor Belts - PREVOST H3-45 2023 Operator's Manual

PRIMARY FUEL FILTER

A primary fuel filter is installed on the engine. This
filter may consist of a filter cartridge with a drain
valve at the bottom, or a filter cartridge, a water
separation bowl and may have a fuel heater built
in. It is used to prevent water from entering the
fuel system. The primary fuel filter should be
drained periodically or when the telltale light on
the dashboard illuminates if equipped with this
system. To drain water, loosen the drain valve
below the separator. Close the drain valve when
finished.
FIGURE 15: FUEL FILTER/WATER SEPARATOR
FIGURE 16: FUEL FILTERS WITH VOLVO D13 ENGINE
The optional Fuel Pro diesel fuel filter system
consists of a permanently mounted fuel
PA-1652 Operator's Manual H3-45 Coach
Care and Maintenance 8-13
processor, a replaceable filter element, a filter
element cover and collar and a fluid filter base
assembly. This system is installed between the
fuel tank and the fuel pump and replaces the
primary fuel filter. The filter serves as a water
separator as well as a fuel filter. To drain water,
loosen the drain valve below the separator one
quarter turn. Close the drain valve when finished.
FIGURE 17: DAVCO FUEL PRO INSTALLATION

CENTRAL A/C COMPRESSOR BELTS

The air conditioning compressor is driven by two
V-belts.
FIGURE 18: 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.