General Technologies FF300 Fault Finder for Electrical Wiring Open / Short Circuit - Manual (Page 2)

1 - Check out list
The FF300 set consists of:
o FF300R FaultFinder receiver.
o FF300T FaultFinder transmitter.
o Factory supplied 9- volt alkaline batteries, type Duracell MN1604
o Foam padded polypropylene carrying case.
o User’s handbook.
If any of these parts are missing please contact your dealer immediately.
2 - Start Up
Both the FF300R and FF300T are factory supplied with batteries. To install the batteries
follow the steps below:
1. Open battery drawer at back of each unit.
2. Factory supplied batteries are in reversed disconnected position.
3. Remove the battery, turn it around and connect the battery observing the polarity
on the label at the bottom of the compartment, on both units.
4. Press the On/Off button on the FF300T (FaultFinder Transmitter), green LED will
light up. If green LED does not turn on, check the battery polarity and reinstall if
necessary. To turn the unit off, press the On/Off button again.
5. Press the On/Off button on the FF300R (FaultFinder Receiver), green LED will start
flashing. If the green LED does not flash, check the battery polarity and reinstall if
necessary. To turn the unit off press the On/Off button again.
3 - Switching On and Off the FF300 set
The FF300T – FaultFinder Transmitter is turned on and off by momentarily pressing
the the “ON/OFF” button, and it must be turned off manually after use by pressing the
On/Off button. Before storing the unit check to make sure that all lights are off, failure to
do so will result in a much shorter battery life.
The FF300R – FaultFinder Tracer can be turned on and off manually by momentarily
pressing the “On/Off” button, however after 3 minutes of not being used, it will turn off
automatically to conserve battery power. Turning the unit off manually will prolong bat-
tery life.
From time to time the batteries on both units will need to be replaced. When you notice a
dimming indicator light and level of the audio output, the batteries should be replaced with
a new set of 9-Volt alkaline batteries. To install the new batteries, replace the ones in the
units for the new batteries observing the polarity on the label at the bottom of the battery
compartment, and follow the instructions in the preceding section: 2 – Start Up.
Page 1
Table of contents.
1 Check Out list Page 1
2 Start-up Page 1
3 Switching On and Off The FF300 Page 1
4 Setting the sensitivity level Page 2
5 How to use the probe Page 3
6 Locating Short Circuits Page 3
7 Wire tracing Page 4
8 Locating Current Leaks Page 4
9 Locating Open Circuits Page 5
10 Wire Identification Page 5
11 Hook Up Reference Chart Page 6
12 General Procedures Page 7
13 Special Tracing Procedures Page 8
14 Technical specifications Page 11
15 Care of the unit Page 12
16 Warranty Page 12
Caution
Very Important: Read this first
• For use only with DC voltage. Do not connect to circuits exceeding 36 volts DC
under any circumstances.
• DO NOT USE on AC voltage.
• Do not use on any circuit directly or indirectly connected to AC lines or any other
AC power source.
• Do not use with any component or part of the ignition system.
• Before using this device check the vehicle’s electrical wiring and disconnect any part
or subsystem sensitive to voltage and current pulses such as air bags, electronic
control modules, etc.
• Always follow the instructions and procedures indicated in the vehicle’s service
manual before attempting to disconnect any part or subsystem of the electrical
circuit.
Exceeding the limits listed above when using this apparatus, or not observing the
precautions listed above can expose you to physical injury and permanently damage
your instrument and parts and components of the vehicle under test.