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

ENGINE BLOCK HEATER

The coach may be equipped with an engine
immersion-type electric block heater to assist cold
weather starting. The 110-120 VAC power
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
POWER SOURCE.
(THREE PRONGS) EXTENSION CORDS WITH
A MINIMUM RATED CAPACITY OF 15 AMPS.
DISCONNECT THE
BEFORE STARTING.
MAKE SURE THE EXTENSION CORD IS
DISCONNECTED
COMPARTMENT DOOR IS CLOSED.

ENGINE WARM-UP

After starting the engine, keep the parking brake
apply and let the engine run at low 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 L.H.
lower switch panel, for five minutes without
loading the engine.
indicator lights to make sure all conditions are
normal. If an 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
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.
with full throttle until engine coolant temperature
reaches 140°F (60°C).
A 110-120
USE ONLY GROUNDED
EXTENSION CORD
BEFORE DRIVING,
AND THE ENGINE
Monitor the gauges and
FUMES CONTAIN
Avoid driving
STARTING AND STOPPING PROCEDURES
WORLD TRANSMISSION (WT)
WARM-UP
When the transmission temperature falls below -
20°F (-29°C), the DO NOT SHIFT indicator
illuminates after the engine is started.
case, the transmission will be locked in neutral (N)
until the transmission temperature rises above -
20°F (-29°C) and the DO NOT SHIFT indicator
light goes out. The transmission will only operate
in first or reverse gears until it reaches the normal
operating temperature.

JUMP STARTING

VAC
In order to avoid damage to solid-state electrical
components, it is important that jumper (booster)
cables are
emergencies. To jump start, use another 24 volt
DC, negative grounded, power source. Use only
jumper cables rated at 500 cranking amperes.
NOTE:
block terminals, the main power switches must be
turned on.
WARNING:
ACID DAMAGE, OR CHARGING SYSTEM
OVERLOAD MAY RESULT IF THESE JUMP
STARTING
PRECISELY FOLLOWED.
WARNING:
REMOVE RINGS, METAL JEWELRY, AND
WATCHES WITH METAL BANDS.
CAUTION:
CABLE TO THE NEGATIVE TERMINAL POST
OF THE RUN-DOWN BATTERY.
WARNING:
BATTERIES WHILE JUMP STARTING ARE
EXPLOSIVE.
BATTERIES.
CAUTION:
VEHICLES TOUCH. KEEP A WALK-THROUGH
DISTANCE BETWEEN THE TWO VEHICLES.
MAKE SURE POSITIVE (RED) AND NEGATIVE
(BLACK) JUMPER CABLE CLIPS DO NOT
TOUCH.
CAUTION:
RUPTURE OR EXPLODE IF JUMP STARTED
5-3
used correctly,
To charge batteries using the booster
INJURY, EXPLOSION, BATTERY
PROCEDURES
WEAR EYE PROTECTION AND
NEVER CONNECT THE JUMPER
THE GASES GIVEN OFF BY
DO NOT SMOKE
DO NOT LET
THE BATTERY
In this
and only in
ARE NOT
NEAR
THE TWO
COULD