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6: C
B
STEP
O NNECTING
IMPORTANT: B efore connecting the battery cables, make sure that the APU commander is N OT plugged
in. The Commander should be the last thing that is connected before the unit is to be started.
You are now ready to connect the battery cables. Make sure the truck battery posts are
clean, as improper connections could cause the APU to fail. Always be careful not to
reverse the polarity of the battery cables or touch the positive cable to ground. Doing so
will cause detrimental damage to APU, and possibly the truck, and is also a fire hazard.
●
Route both positive and negative battery cable to the truck's battery bank. Cable-tie all
slack during this process.
●
Be extra careful to not let the cables rest on or come in contact with any moving parts.
This could cause a short in the future.
●
Prior to connecting the cables to the batteries to the APU, install the included MRBF fuse
onto one of the positive posts on the battery. This will be the APU power supply and
truck charge supply. This fuse is necessary to protect against any potential electrical
hazards.
●
Once the MRBF fuse is installed, connect the positive (red) lead to the top of the post
and tighten the lead against the fuse. Place the rubber cap over the connection. Tape if necessary.
●
Once inside the battery compartment, connect the ground (black) wire to the negative battery post. Do not connect
this to a frame or any other metal for ground.
C
A TTERY
A BLES
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P age
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