GILLIG LOW FLOOR, Service Manual

Page: 465 / 506

Body and Interior
465
PASSENGER DOORS
The standard door configuration on a Gillig transit bus is a driver controlled, air operated, front and rear
door. The front doors are opened and closed by an electrically-controlled air motor; the rear doors are
opened by an electrically-controlled air motor and closed with a spring mechanism. Refer to the Air
chapter for a description and operation of the air motor and door air system operation.
The door is made up of two hinged panels, including glazing, and operated by air motors, cams, and
rods. The front door is a slide-glide type in which the panels rotate and articulate sideways to open. The
rear door panels rotate outwards in a 90° arc to open. The operating mechanisms are located in a com -
partment above each door and are connected to a brake interlock, which prevents vehicle motion while
the doors are open. Incorrect operation of the doors or brake interlock could cause injury to passengers,
so it is essential that the doors are checked daily for proper operation and maintained through proper
adjustment and repair.
Safety Features
• Brake Interlock
• Throttle/Transmission Interlock
• Sensitive Edge
• Manual Release
Manual Release
Front Door
To manually operate the door, a red handled
air valve is mounted in the compartment above
the door (see Figure 11- 14 ). Rotating the valve
handle one quarter turn blocks the air supply and
exhausts the air pressure from both cylinders. The
door can then be opened by hand. Normal opera-
tion is restored by returning the valve handle to
the original position. A breakable glass panel is
installed in the compartment door to provide emergency access to the manual operator valve. A second
air valve release lever is mounted on the driver’s console. Actuation of this valve will release the air
pressure from both air cylinders. The door can then be opened by hand.
to opeN door
mANuAlly
breAK cover
turN hANdle
to opeN door
mANuAlly
breAK cover
turN hANdle
Figure 11-14, Front Door Manual Release