Cold Weather Starting; Engine Block Heater; Engine Warm-Up; World Transmission (Wt) Warm-Up - PREVOST H3-41 Manual

STARTING & STOPPING PROCEDURES
switch located on the dashboard to the ON
position. Refer to "Control & Instruments"
chapter;
•
Press starter push-button switch. Release
push-button after starting.
REAR START PANEL
Warning :
Do not wear loose clothing when
working near engine.
components.
Caution :
Refer to cautions in "Starting
Engine From Drivers Compartment" in this
chapter.
Stopping Engine
To stop engine, set the starter selector switch to
the OFF position.
Caution :
Do not stop engine by any other
method.

COLD WEATHER STARTING

Cold Starting Aid (Ether)
The coach may be equipped with the optional
ether cold starting aid to facilitate cold-weather
starts when the temperature is below 35°F (2°C).
A control rocker switch is located on the
dashboard. To activate the ether starting aid,
proceed as follows:
•
Before cranking engine, press the rocker
switch for 3 seconds to fill solenoid valve;
•
Release rocker switch to discharge shot of
ether;
•
Allow 3 seconds for shot to discharge;
•
Start engine.
Stand clear of rotating
Caution :
Use the cold starting aid only
when absolutely necessary.
starter fluid could result in serious engine
damage.

ENGINE BLOCK HEATER

The coach may be equipped with an engine
immersion-type electric block heater to assist cold
weather starting.
connector is located on the engine compartment
rear door. Connect the female plug of an
extension cord to the 110-120 VAC male outlet.
Plug the extension cord into a 110-120 VAC
power source only. Use the engine block heater
whenever the coach is parked for an extended
period of time in cold weather and when a 110-
120 VAC power source is available.
Caution :
Use only a 110-120 vac power
source. Use only grounded (three prongs)
extension cords with a minimum rated capacity of
15 amps. Disconnect the extension cord before
starting. Before driving, make sure the extension
cord is disconnected
compartment door is closed.

ENGINE WARM-UP

After starting the engine, keep the parking brake
applied and let the engine run at slow idle for two
minutes to allow lubricating oil to reach the
turbocharger. Increase engine speed to fast idle,
using the FAST IDLE switch located on the
dashboard, for five minutes without loading the
engine. Monitor the gauges and indicator lights to
make sure all conditions are normal.
abnormal condition is observed, stop the engine
immediately and have the condition corrected.
Warning :
Never let the engine run in an
enclosed, non-ventilated area. Engine exhaust
fumes contain dangerous gases which can be
fatal if inhaled. To warm-up the engine, open
station doors or move the coach outside.
Note :
The engine will reach normal operating
temperature shortly after driving. Avoid driving
with full throttle until engine coolant temperature
reaches 140°F (60°C).
WORLD TRANSMISSION (WT)
WARM-UP
When the transmission temperature falls below
-20 °F (-29 °C), the CHECK TRANS indicator
illuminates after the engine is started.
5-2
Excessive use of
The 110-120 VAC power
and the engine
If an
In this