Volt In Station Lighting Circuit; 110-120 Volt Connector; Belt Tension Adjustment - PREVOST H3-41 Manual

CARE AND MAINTENANCE
110-120 VOLT IN-STATION
LIGHTING CIRCUIT
The optional 110-120 volt lighting system can be
used when the coach is being cleaned or
serviced by using an interior power receptacle.
The optional receptacle used for the in-station
lighting circuit is located
compartment rear door.

110-120 VOLT CONNECTOR

(ENGINE BLOCK HEATER & OPTIONAL
FRESH WATER TANK HEATER)
The 110-120 volt power connector is located on
the engine compartment rear door.
"Coach Exterior" chapter.
extension cord plug to the male connector on the
engine compartment rear door. Connect the plug
at the other end of the cord to a 110-120 VAC
outlet only.
The engine is equipped
immersion-type electric block heater to assist cold
weather starting.
The engine block heater should be used
whenever the coach is parked for extended
periods in cold weather and whenever a suitable
power source is available.
The coach may be equipped with a fresh water
tank heater.
When the coach is plugged to an external power
source, the engine block heater and the optional
fresh water tank heater turn on.
Caution :
Only use a 110-120 vac power
source. Use only a grounded type (three
pronged) extension cord with a minimum rated
current capacity of 15 amps.
extension cord before starting or moving the
coach.

BELT TENSION ADJUSTMENT

The radiator transfer fan and air conditioning
compressor are driven by V-belts.
Belt Tension Gauge #68-2404 is used to measure
the belt tension of series-60 engine belts. Refer
to Prevost Maintenance Manuals or Service
Bulletins for recommended belt sizes and tension
settings.
on the engine
Refer to
Connect the female
with an engine
Disconnect the
7-8
BELT TENSIONERS
Belt tensioning is applied through air bellows
which are adjusted by an air pressure regulating
valve mounted in the engine compartment, right
behind the engine start panel.
operation of the air bellows, adjust the upper
tensioning bracket to provide a 2 3/8"-2 1/2" (60-
64mm) extension with the pneumatic system
under normal pressure
regulating valve set at 50 psi (345 kPa).
AIR BELLOW
For belt replacement, air pressure must be
released from bellows by means of the belt
tensioning pressure control valve.
mounted above the engine doors close to the
pressure regulating valve, is manually operated.
Before handling, be sure that all engine stopping
safety precautions have been observed.
PRESSURE REGULATING VALVE
For proper
and the pressure
This valve
12143