9-3
October 2014 | Revision 1.0
Meridian Manufacturing, Inc.
5. Make sure the tow vehicle is equipped with
a standard 7-way automotive wiring harness
socket. If the tow vehicle is not equipped
with a 7-way connector which is properly
configured, the trailer battery will not be
charged without custom wiring from the tow
vehicle’s alternator/charging system.
a.
If equipped, check the 7-way socket on
the tow vehicle using a Volt meter to
make sure Pin 4 and Pin 1 are supplying
12 Volts of power. If any other pin has
a 12 Volt supply, the battery will not be
charged.
Note:
To properly charge the battery, the tow
vehicle’s socket must be configured with
Pin 4 (black) along with Pin 1 (white)
connected to the 12 Volt supply.
MMG-00238a
Pin 7
Pin 4
Pin 1
Ground
b. If there is no voltage on any of the pins,
check the fuse in the truck’s fuse panel.
The fuse for the charge line may not be
installed or may be blown. Also check the
tow charging relay that supplies power to
the tow charging pin
Note:
If the tow vehicle’s wiring connections do
not correspond to the fuel trailers wiring
harness, the breakaway brake system
battery will also not be charged during
normal operation.
6.
Always make sure the trailer lights and brakes
are working properly before towing the trailer.
Do not tow a trailer that is not operating
properly.
7. The fuel trailer can be towed with a tractor;
however, it is electrically wired for a 7-way
automotive wiring harness application. An ag
tractor will not properly operate the trailer’s
brake, battery charging system, or lights
without special wiring modification. Do not tow
the fuel trailer on public roads without proper
brakes and lighting.
9.4 DEF AND DIESEL FUEL TANKS
9.4.1
Filling the Fuel Trailer with
Diesel Fuel
1.
Before filling the IBC tank, follow all the safety
recommendations, such as attaching the fuel
trailer to the tow vehicle, placing the fuel trailer
on a level surface, blocking both sides of the
wheels to prevent unexpected movement, etc.
2.
Fill the trailer with fuel using 2” fill spout (1) or
3” camlock port (2). Use gauge (3) to prevent
overfilling. Do not fill the tank more than 95%
full [3125 L (825 gal.)].
Chapter 9 | Operation
