Air Tanks; Fire Extinguishers; Water Separator - PREVOST H3-41 Manual

AIR TANKS

The coach can be equipped with six air tanks.
Purge accessory and wet air tanks daily or before
each trip. The primary, secondary, kneeling
system (optional) and parking brake override
(optional) air tanks, must be purged at every oil
change. Oil changes should be scheduled at
least every 12,500 miles (20 000 km).
The accessory air tank drain cock is accessible
from the front service compartment. The wet air
tank drain cock is accessible from the engine
compartment R.H. side door. All air tanks are
equipped with a drain cock underneath the tank.
Refer to the "Lubrication and Service Check Point
Chart" in the "Maintenance Manual" for tank
locations.
Drain tanks by turning cocks counter-clockwise.
ENGINE COMPARTMENT
FRONT SERVICE COMPARTMENT

FIRE EXTINGUISHERS

Inspect fire extinguishers monthly to insure
operation in emergency situations.
- On extinguishers with a pressure gauge, the
needle should be in the green or NORNAL
range. Refill or replace extinguisher if
pressure is below normal.
- Check that seal on handle is intact.
- Check that hose nozzle is in good condition
and the nozzle is free of obstruction.
- Keep fire extinguishers clean.
- Check signature and date of last inspection.
Replace signature and date if not inspected
within last month.
OEH3B726

WATER SEPARATOR

A water separator installed in the engine
compartment is used to prevent water from
entering the fuel system. The water separator
should be drained periodically, or when the water
separator indicator light on the dashboard goes
on. To drain water, loosen bleed screw below
separator one quarter turn. Tighten bleed screw
when finished.
7-9
CARE AND MAINTENANCE
OEH3B728