Engine Warm-Up; Allison Transmission Warm-Up; Starting The Vehicle After Afire Alarm - PREVOST H3-45 VIP Owner's Manual

FIGURE 5: ENGINE BLOCK HEATER CONNECTOR
(TYPICAL)

ENGINE WARM-UP

After starting the engine, keep the parking brake
applied and let the engine run at normal 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. If an abnormal
condition is observed, stop the engine immediately
and have the condition corrected.
NOTE
The engine will reach
temperature shortly after driving. Avoid driving
at full throttle until engine coolant temperature
reaches 140°F (60°C).
DANGER
Never let the engine run in an enclosed, non-
ventilated area. Engine exhaust fumes contain
dangerous gases which can be fatal if inhaled.
Before warming up the engine, open the door(s)
or move the vehicle outside.
normal operating
PA-1619 Owner's Manual H3-45 VIP
Starting and Stopping Procedures 6-7

ALLISON TRANSMISSION WARM-UP

With an automatic transmission, when the
temperature falls below -20°F (-29°C), the CHECK
telltale light illuminates after the engine is started,
and a reminder tone will sound. In this case, the
transmission will be locked in neutral (N) until the
transmission temperature rises above - 20°F (-
29°C) and the CHECK telltale light goes out. The
transmission will only operate in first or reverse
gears until it reaches
temperature.
STARTING THE VEHICLE AFTER A
FIRE ALARM
The vehicle may be started after a fire alarm
without resetting the system. Refer to Section 7
SAFETY FEATURES AND EQUIPMENT under
"Starting The Vehicle After A Fire Alarm" on
page 1 for the complete procedure.
normal operating