Removal And Installation; Door Lock; Lavatory Light With Motion Sensor - PREVOST H3-41 Maintenance Manual

SECTION 23A: ACCESSORIES - H3 SERIES
NOTE
This fan runs constantly when the ignition
switch located on the dashboard is in the
"ON" position.
8.3.1 Maintenance
The frequency of preventive maintenance should
be determined according to vehicle mileage and
operating conditions.
recommended to check this item every 50,000
miles (80 000 km) or once a year, whichever
comes first.
Remove fan and motor assembly. Check for fan
housing wheel and motor free operation. When
defective motor occurs, new motor must be
installed.
8.3.2

Removal and Installation

1. With the engine compartment rear door
opened, remove hose clamp securing duct
to ventilation fan inlet, and disconnect duct.
2. Disconnect the ventilation motor wiring
connector.
3. Remove the two
ventilation fan housing support to the square
tubing. Remove the ventilation fan assembly
from its location.
4. The unit can now be disassembled and
motor replaced.
5. Reverse previous
ventilation fan assembly on vehicle.
FIGURE 25: VENTILATION FAN INSTALLATION
20
PA1621 Maintenance Manual All Series | Jan 2020
However, it is
bolts retaining the
steps to reinstall
8.4

DOOR LOCK

Lavatory door lock has inside and outside
handles, as well as an inside latch to lock door
from inside the compartment. If the lock fails to
release, the door can be opened from the
outside using a special key which is supplied to
the driver. Lock assembly can be removed from
the door, and then readily disassembled and
parts replaced, if necessary. A thin coat of
lubricant on all moving parts will ensure
trouble-free operation.
8.5 LAVATORY LIGHT WITH MOTION
SENSOR
The lavatory light, when dimmed, serves as a
night-light and is illuminated as soon as the
ignition switch is set to the "ON" position. A
motion sensor will activate full light intensity
whenever motion is detected in the lavatory
compartment. The motion sensor will dim the
light after a delay of 8 seconds when no addi-
tional motion is detected.
NOTE
The lavatory light motion sensor has a warm-
up period of approximately 2 minutes after the
ignition switch is set to the "ON". During that
warm-up period, the motion sensor will not
detect motion and will not activate the lavatory
light to full intensity.
FIGURE 26: LAVATORY LIGHT MOTION SENSOR
8.5.1 Removal and Installation
1. Open the sensor housing by pressing on the
latch with a screwdriver. The latch is located
on the side of the sensor nearest the lens.
Pull the cover up away from the sensor's
base.