Illinois Administrative Code › Title 92 - TRANSPORTATION › Part 436 - INSPECTION PROCEDURES FOR MULTIFUNCTION SCHOOL ACTIVITY BUSES › Appendix D - Electrical System Wiring through Fenders

Current through Register Vol. 48, No. 28, July 12, 2024
a) ELECTRICAL SYSTEM WIRING
1) Circuits
PROCEDURES/SPECIFICATIONS:
Circuits arranged to manufacturer's specifications
				are acceptable. Circuits may be added as necessary.
MFSABs must be equipped with a noise suppression
				switch that is capable of turning off noise producing accessories including,
				but not limited to, heater blowers, defroster fans, auxiliary fans and
				radios.
REJECT VEHICLE IF:
Breaks in insulation are present. Not on proper
				circuit or properly wired.
Noise suppression switch is missing or does not
				function.
2) Fuses
PROCEDURES/SPECIFICATIONS:
For buses equipped with electrical systems that
				utilize fuses, two extra fuses for each size fuse used on the bus shall be
				conveniently mounted for easy access on the bus body.
REJECT VEHICLE IF:
If required, fuses are not present or are not
				conveniently mounted for easy access.
3) Switches
PROCEDURES/SPECIFICATIONS:
Check operation and condition.
REJECT VEHICLE IF:
Switches are not operating properly or are
				missing.
4) Wiring
PROCEDURES/SPECIFICATIONS:
All wires shall be properly insulated and securely
				attached at not more than 18.1 inches (460 mm) intervals. Check
				condition.
REJECT VEHICLE IF:
Insulation is frayed or missing. Wiring not securely
				attached.
b) EMERGENCY EXITS
PROCEDURES/SPECIFICATIONS:
All buses must be equipped with either a rear
				emergency door or a left side emergency door and a rear emergency window. (See
				49
				CFR 571.217.)
All emergency exits shall be outlined around the
				perimeter of the exit with a minimum one inch wide retroreflective tape or
				decal. The retroreflective tape or decal shall be placed on the exterior
				surface of the MFSAB. (See
				49
				CFR 571.217.)
Exceptions: Retroreflective tape can be located on
				the rear bumper provided the space under the emergency exit door is not
				adequate to accommodate the tape or provided rivets are present that prohibit
				the tape from being applied properly.
Optional emergency roof hatches are allowed. They
				must be installed according to manufacturer's specifications.
Open and close roof hatches (required or optional)
				to verify their operation.
REJECT VEHICLE IF:
Emergency exits do not meet requirements. Roof
				hatches do not open.
1) Side
PROCEDURES/SPECIFICATIONS:
Inside release mechanism must be protected against
				accidental release; easily accessible; and readily operated manually without
				the use of remote control, power device, or tool.
Shall be hinged on front side and open outward.
				Shall be equipped with safety glass (or equivalent). Glass shall be located in
				upper portion of the door. Door shall be of at least the same gauge metal as
				the body. Shall be 24 inches or more clear horizontal opening, with forward
				edge of opening in line with the rearmost edge of a seat back. Shall have 45
				inches or more clear vertical opening. Door and rubber seal must not be
				defective. (See Alarms and Locks in subsection (b)(4) for requirements.)
There must be at least 11.7 inches (30 cm) measured
				from the door opening to the seat back in front. If there is no flip-up seat
				present, a guard barrier must be installed in front of the seat to the rear of
				the door. (See
				49
				CFR 571.217.)
REJECT VEHICLE IF:
Release mechanism is not protected, accessible, or
				operable (inside and outside); unable to open easily; hinge is located at
				incorrect location; location and size of opening is incorrect. General
				condition of door and/or rubber seal is defective.
2) Rear
PROCEDURES/SPECIFICATIONS:
Inside release mechanism must be protected against
				accidental release; easily accessible; readily operated manually without use of
				remote control, power device or tool.
Shall have permanently attached inside and outside
				release handles. Outside release handle must be non-hitchable.
Rear exit shall hinge on right; open outwards; have
				a 24 inch or more clear horizontal opening and 45 inch or more clear vertical
				opening above floor. Glazing shall be installed in upper and lower portions.
				Door and rubber seal must not be defective. (See Alarms and Locks in subsection
				(b)(4) for requirements.)
REJECT VEHICLE IF:
Inside release mechanism is not protected. Inside
				and outside release mechanisms are not accessible or do not operate properly.
				Outside release mechanism is hitchable. Door does not open easily. Location of
				hinge is incorrect. Size of opening is incorrect. Glazing does not meet
				requirements. General condition of door and/or rubber seal is defective.
3) Window
PROCEDURES/SPECIFICATIONS:
When the emergency door is located on the left side,
				a rear emergency window shall be provided. Minimum 16 inches high and 48 inches
				wide. Designed to be opened from the inside or the outside. Hinged on top,
				designed and operated to insure against accidental closing in an emergency.
				Inside handle shall provide for quick release. Outside handle shall be
				nondetachable and nonhitchable. (See Alarms and Locks in subsection (b)(4) for
				requirements.)
Optional emergency windows are allowed. They must be
				labeled "Emergency Exit" in letters at least two inches high, of a color that
				contrasts with its background, located at the top of or directly above the
				window on the inside surface of the bus.
REJECT VEHICLE IF:
If equipped, operating mechanisms do not function.
				Glass is cracked or broken.
4) Alarms and Locks
PROCEDURES/SPECIFICATIONS:
Both audible and visible alarms shall alert the
				driver when engine is running and any emergency exit door either:
A) Is not fully latched, or
B) Is locked.
An audible alarm shall alert the driver when engine
				is running and any emergency exit window either:
A) Is not fully latched, or
B) Is locked.
The engine starting system shall not operate while
				any emergency exit door or window (optional or required) is locked (i.e.,
				release mechanism that requires a key or combination, a "hasp lock" or a
				sliding latch) from either inside or outside the bus.
Alarm cut-off or "squelch" control is
				prohibited.
On a van conversion, any rear cargo door inside
				locks of the type installed by the chassis manufacturer (such as commonly used
				in cars - "push/pull" type) shall be made inoperable. The mechanism cannot,
				through jarring, vibration, etc., cause the door to become locked and be
				inoperable from the inside or outside.
Exception: No alarm is required for roof
				hatches.
REJECT VEHICLE IF:
Alarms do not alert driver as required. Locks do not
				meet requirements.
c) ENTRANCE DOOR
1) Physical Requirements
PROCEDURES/SPECIFICATIONS:
The service entrance shall have a minimum vertical
				opening of 1.7 m (67") and a minimum horizontal opening of 610 mm (24").
Door shall be located to right of operator and
				operated by an over-center control. Upper portions of door shall be safety
				glass or equivalent. Vertical closing edges shall be equipped with flexible
				material for a proper seal and to prevent injury.
Each door on the right side of the vehicle, hinged
				or sliding, except the service door shall be made permanently inoperable by
				means other than the rub rail on the outside of the body.
The service door shall be either manually or power
				operated by the seated driver. When in the closed and secured position, the
				door operating mechanism shall prevent accidental opening but shall afford
				prompt release and opening by the driver. No exposed parts of a door operating
				mechanism shall come together so as to shear or crush fingers. The vertical
				closing edges of a service door shall be padded to lessen chance of
				injury.
A power operated door shall be equipped for
				emergency manual operation in case of power failure. Instructions for emergency
				operation of a power operated door shall be affixed permanently on the interior
				of the door in letters at least 12 mm (.5") high.
REJECT VEHICLE IF:
Binding or jamming is evident, malfunctions,
				over-ride device on power operated door does not function, control not
				accessible by driver.
Door is missing, loose, or damaged. Rubber seal is
				missing or torn.
2) Locks and Alarms
PROCEDURES/SPECIFICATIONS:
A service door lock is not required, but if any type
				of service door locking system is installed on the bus, the system shall
				conform to at least one of the following:
A) The locking system shall not be capable of
				preventing the driver from easily and quickly opening the service door from
				inside the vehicle; or
B) A locking system that is capable of preventing
				the bus driver from easily and quickly opening the service door shall include
				an audiovisual alarm. The alarm shall be audible and visible and must alert the
				driver when the engine is running and the service door is locked. An alarm
				disconnect, "squelch control", or other alarm defeating or weakening device
				shall be prohibited; or
C) A locking system shall not be capable of
				preventing the bus driver from easily and quickly opening the service door
				except when a person outside the bus uses a key that is not capable of locking
				more than one of at least 1000 of the door manufacturer's key locking
				systems.
REJECT VEHICLE IF:
Locks and alarms do not meet requirements. Bent,
				worn or dislocated parts that would delay quick door release and opening are
				present.
d) EXHAUST SYSTEM
PROCEDURES/SPECIFICATIONS:
1) General
"Exhaust system" includes each component used to
				conduct gas from an engine exhaust port (manifold) to an authorized exit point,
				including each sealing, connecting, and supporting component. Exhaust system
				shall be outside body and attached to chassis. Size of tail pipe shall not be
				reduced after it leaves muffler. Any flexible component that contains exhaust
				gas shall be of stainless steel. System shall not leak. System shall have an
				outlet at its discharge ends only.
Exhaust system shall be shielded from either
				accidental contact, "hitching to", or "standing on", except that no shielding
				is required at the discharge end. A chassis or body component may provide
				required shield.
AGENCY NOTE: As mandated by the United States
				Environmental Protection Agency (USEPA), diesel-powered engines manufactured
				after December 31, 2006 are required to meet stricter standards that will
				reduce emissions of particulate matter and nitrogen oxides into the atmosphere.
				School bus manufacturers may be required to modify exhaust systems to meet the
				USEPA requirements, e.g., mufflers may be replaced with after-treatment devices
				that significantly reduce toxins released into the atmosphere. Modifications to
				exhaust systems made in compliance with the USEPA requirements are acceptable,
				provided they do not impact the safe operation of the school bus.
REJECT VEHICLE IF:
All parts of system are not securely fastened and
				supported.
Any part of system is leaking or missing.
Any part of system contains holes not made by
				manufacturer.
Exhaust system does not meet requirements.
2) Discharge
PROCEDURES/SPECIFICATIONS:
The exhaust pipe, muffler and tail pipe shall be
				outside the bus body and attached to the chassis.
The exhaust system shall be insulated from any
				insulated wire, flammable material, brake hose or line, or fuel system
				component by a securely attached metal shield at any point where the exhaust
				system is 11.8 inches (300 mm) or less (four inches (101.6 mm) or less if
				diesel powered engine) from the components listed in this subsection
				(d)(2).
The shielding of engine compartment components shall
				be governed by the chassis manufacturer's standards.
The tail pipe may meet the chassis manufacturer's
				standard configuration. However, the tail pipe shall not exit beneath any fuel
				filler location or beneath any emergency exit door.
The tail pipe shall extend out to, but not more
				than, 1 inch beyond the perimeter of the body, the bumper or the rub
				rail.
Each gas conducting component that is not of
				stainless steel shall be of commercial heat and corrosion resistant exhaust
				system material and shall be nonflexible.
REJECT VEHICLE IF:
Exhaust discharge system does not meet
				requirements.
Exhaust discharge location is "hitchable".
Exhaust fumes are released towards a door or other
				opening into bus body.
e) FENDERS
PROCEDURES/SPECIFICATIONS:
Shall be properly braced and free from any body
				attachment.
There shall be approximately one inch located
				between front fenders and back face to cowl.
REJECT VEHICLE IF:
Fenders are not solid or in bad condition.
Sharp edges are evident.
Fenders are loose or protrude out.