Wheelchair Lift (Optional); General Description; Wheelchair Interlock System - MCi J4500 Operator's Manual

6 - WHEELCHAIR LIFT ( OPTIONAL )

GENERAL DESCRIPTION

A wheelchair lift is installed in the storage
compartment on the curbside rear of the coach,
between the wheel housing and the rear service door.
The lift provides safe on-loading and off-loading of
wheelchair passengers with easy ground level access.
The platform raises to coach floor level where the
passenger enters the coach through the cabin access
door.
The lift is powered by an electrically operated
hydraulic pump, with emergency manual back-up, and
operated with a hand held WCL controller. Keyed
operation and a safety interlock prevents unsafe
deployment.
The wheelchair lift platform features:
• folding handrails,
• a manually operated front barrier,
• a powered rear barrier that acts as a
bridge between the platform and the
coach floor.
A cabin access door is located directly above the
wheelchair lift storage compartment. The door has a
forward hinge and a positive lock mechanism to
prevent accidental closing. The cabin access door is
operated manually.
Two wheelchair parking spaces are available next
to and across from the lift platform. Special sliding and
folding seats can be repositioned to provide wheelchair
parking area.
A seven point wheelchair and passenger restraint
system is included at both wheelchair locations.
The electric pump, emergency hand pump
( Figure 31 ) and reservoir assembly are located in the
rear service compartment.
Figure 31.
June 2016

WHEELCHAIR INTERLOCK SYSTEM

This system prevents the WCL controller to be
enabled until the following functions occur:
• the main battery disconnect switch is in
the ON position,
• the engine is running,
• Neutral is selected on the transmission
shift pad,
• the Park Brake is set,
• the master wheelchair lift key switch
(located on the lower, LH switch panel)
is turned to the ON position.
Only after these conditions are met, the following
functions occur:
• the vehicle assumes normal ride height,
• the throttle is disabled,
• the WCL INTRLK dash telltale
illuminates,
• the engine is running at fast idle,
• the Hazard/Warning lights automatically
activate,
• the audible back up alarm automatically
activates,
• the transmission shift inhibit and MDSS
inhibit are energized,
• the park brake lock valve is energized,
• the wcl interior light illuminates,
• the wcl controller is enabled,
• the key will release from the master
wheelchair lift key switch, eliminating
the possibility of theft or engaging the
coach during wheelchair operation.
31