Air Leak Check / Warning; Optional Haldex Condenser - Separator; Maintenance - PREVOST H3-41 Maintenance Manual

11. Thread replacement cartridge onto the base
until the seal touches the base. Then, tighten
the cartridge ONE additional turn. DO NOT
OVERTIGHTEN.

MAINTENANCE

Air dryer cartridge
Replace the air dryer desiccant cartridge at the
intervals specified by the Lubrication And
Servicing Schedule
LUBRICATION & SERVICING
8.2

AIR LEAK CHECK / WARNING

FIGURE 8: AIR LEAK CHECK / WARNING ICON
This icon may appear in the DID if the
compressor is charging abnormally which is
usually an indication of an air leak.
9. OPTIONAL HALDEX CONDENSER -
SEPARATOR
The optional Consep Air Condenser-Separator is
located in the rear wheelhousing, fore of drive
axle (Figure 9). When present, the Consep is
mounted in the air line between the compressor
and the air dryer. It condenses, separates and
removes 90% of the oils, liquids and other
contaminants. It reduces corrosion and possible
failure of air brake system components caused
by contamination and significantly increases the
air dryer desiccant life.
in Section 24:
12228
PA1621 Maintenance Manual All Series | Revised June 2020
SECTION 12: BRAKE AND AIR SYSTEM
FIGURE 9: HALDEX CONSEP CONDENSER
SEPARATOR
The automatic heated drain valve installed on
the Consep ensures that liquids are removed
upon each brake application for optimum
performance. The drain valve's integrated filter
prevents damage from large debris.
The automatic drain valve activates when the
rear stop lights turn ON, with the prerequisite
conditions of having a vehicle speed greater than
2 mph and the engine running.
The solenoid remains energized simultaneously
with activation of the rear stop lights to heat up
air output to prevent it from freezing. However,
Multiplex programming will ensure that the
solenoid remains energized for at least of 45
seconds but not longer than 5 minutes.
9.1 MAINTENANCE
The Consep requires little maintenance during
its long service life. The Consep must be
inspected periodically for proper operation. The
interval between inspections is determined by
the type of service. High compressor duty cycles
and high temperatures can cause a buildup of
carbon in the condenser, drain valve and filter.
This contamination must be removed for proper
operation.
For more information on the periodic inspection,
refer to Haldex Consep Condenser Separator,
Installation, Maintenance
L31167 included on your technical publications
CD.
& Inspection
13