Ceiling Vents - GMC MOTORHOME 1978 Operating Manual

Opening Vertical Sliding Window
tration) . Firmly grasp latch plate, and slide
window to desired position (see illustration) .
To Close Window
Grasp latch plate, and slide window to the
fully closed position. Push downward on latch
lever, until button is exposed (see illustration)
to lock sliding window in position . To be sure
window latch assembly is locked, depress latch
plate and carefully attempt to open window . If
window opens, repeat "To Close Window" pro-
cedure. If window latch assembly still does not
lock return vehicle to your dealer for service .
NOTICE : If windows do not slide easily in sliding
glass track, it may be helpful to spray track
Window Latch (Locked)
grooves with Silicone Spray Lubricant, GM Part
No . 1050018 or equivalent .
CEILING VENTS
The purpose of the ceiling vents is to allow
warm air to escape that may accumulate at
ceiling level when the vehicle is parked in the
sun. The opening of a ceiling vent and a window
will aid in removing condensation from the
windows.
The vents are crank-operated from inside the
Motorhome . In rainy weather it is possible to
leave the ceiling vents open slightly for ventila-
tion without entry of water into the Motor-
home (depending upon the magnitude and di-
rection of rain).
NOTICE : All windows and roof vents must be
tightly closed when operating the air condi-
tioner or furnace to obtain maximum cooling
or heating.
Power fans are available for the ceiling vents .
These will increase the efficiency of the vent .
They are operated by the button switch at the
corner of the vent.