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MAINTENANCE
MAY 2020
32DFRE02.C
FR2E-SERIES SERVICE MANUAL
TABLE 3-2: MAINTENANCE SCHEDULE
INSPECTION POINT
ACTION
– 12,000 MILE INSPECTION –
Wiring harnesses
Check wiring insulation for heavy abrasions, and connectors for looseness. Replace as necessary.
Fasteners
Check all threaded fasteners for tightness and retighten as necessary.
Non-slip
surfaces
Check non-slip surface for excessive wear or damage (rips, tears, peeling, etc.), and re-
place as necessary.
– 24,000 MILE INSPECTION –
Self Aligning Assembly
Grease or oil to lubricate parts is NOT recommended. Keep components clean and free
of debris. Refer to installation section for self aligining assembly replacement.
END OF TABLE
D.
RAMP COMPONENT INFORMATION
Ricon FoldOver
®
Electric FR2E-Series Low-Floor Vehicle Access Ramp uses electrical power from the host vehicle to
deploy and stow the ramp. Vehicle electrical power is converted to mechanical force, which is used to move the ramp.
Electrical components are described below. Please refer to
Figures 3-4
for electrical diagram.
1.
ELECTRIC MOTOR DRIVE SYSTEM
The ramp employs an electro-mechanical motor drive system (contained within the ramp enclosure). Settings are
programmed in the motor drive system and is preset at Ricon.
The motor drive system converts electrical power into mechanical force through the crank shafts when either the
DEPLOY or STOW micro-switches are activated and controlled by an electronic controller. Ricon recommends op-
erating the ramp while the vehicle engine is running in order to minimize current drain on the vehicle battery.
2.
TRAY POSITION SWITCH ASSEMBLY
A factory adjusted tray position switch assembly identifies the DEPLOY or STOW position of the ramp tray as the
electro-mechanical drive system transfers motion from the crank shaft, through the chain, onto the CAM shaft. The
CAMs attached on the rotating CAM shaft activate the micro-switches which relay signals to the electronic controller
that controls the functions of the ramp.
3.
ELECTRONIC CONTROLLER
The electronic controller interprets input/output signals from the micro-switches and controls ramp functions by re-
laying signals to/from the control box. It contains integrated circuits (ICs), relays, fuses, and associated parts. The
ICs cannot be accessed externally. The 55-pin ramp connector receives 12V/24V to power the controller and sends
12V/24V through the control box that controls power to the motor drive system.
Refer to
Figure 3-1
for connector and controller connection. Controller only requires one 55-pin connector connec-
tion.
