Overview
This article provides step-by-step instructions for installing and verifying the GS-364 (TTU-3640) tracking device on heavy equipment. Follow each step to ensure a secure installation, proper GPS visibility, and successful transmission.
Who this guide is for:
Installers, mechanics, or personnel setting up GS-364 (TTU-3640) devices on off-road or heavy-duty equipment.
Required Tools & Materials
Before beginning, make sure you have the following:
Drill (with appropriate bits)
Adjustable pliers
Zip ties
Industrial-grade Velcro
Self-tapping screws
GS-364 (TTU-3640) harness/device
Step-by-Step Installation
1 Preparation
Park the equipment in a safe, well-lit location and turn off the engine.
Disconnect the battery if needed to prevent shorting during installation.
Verify that all required tools and materials are present.
2 Locate Diagnostic Port
Identify the OEM diagnostic port on the equipment.
Common locations: behind the operator’s seat or near the fuse panel.
Ensure the port and surrounding area are clean and easily accessible.
3 Determine Mounting Location
Select a mounting location for the GS-364 (TTU-3640) device.
Important: The device must have a clear view of the sky for optimal GPS signal reception.
Recommended areas: near a window or upper dashboard.
Mounting Options:
Option 1: Self-tapping screws – permanent installation.
Option 2: Industrial Velcro – removable installation.
Option 3: Combination of Velcro and zip ties – added stability.
4 Connect the Harness
Remove the OEM diagnostic port from its mount.
Depending on the model, it may use a single nut or several rear screws.
Connect one side of the GS-364 (TTU-3640) harness to the OEM diagnostic port.
This keeps the diagnostic port functional for fault-code reading.
Plug the other side of the harness into the equipment’s diagnostic connector.
Connect the GS-364 (TTU-3640) device to the harness plug.
5 Power Up and Verify Device Activation
Once connected, the GS-364 (TTU-3640) device LEDs will begin flashing.
Wait 5–10 minutes until all LEDs turn solid.
During this time, the device runs system checks, connects to the ECM, and downloads updates.
Do not proceed until all LEDs are solid.
6 Verify Operation
Open the mobile app and log in.
Start the equipment and let it run for 10–15 minutes.
Confirm:
GPS lock is established (check coordinates in the app).
“Engine began running” event appears – this may take 30 seconds to 5 minutes depending on configuration.
Turn off the equipment and confirm an “Engine stopped running” event in the app.
Use Verify GPS Device in the app to confirm communication.
(See the Verify GPS Device article for step-by-step instructions.)
7 Record Installation Details
Pair (couple) the device with the specific equipment using the mobile app.
From the home screen, tap Devices > Field Service Ticket to begin coupling.
Enter the required information, including:
Hour meter reading
Odometer reading (if applicable)
(See the Field Service Ticket article for detailed steps.)
Record the following additional details for your records:
Equipment make and model
Device serial number
Verify that the equipment information entered in the app matches the corresponding record in the database.
8 Final Installation & Cleanup
Secure the harness neatly with zip ties.
Keep wiring away from heat sources, moving parts, and pinch points.
Mount the GS-364 (TTU-3640) device securely in the chosen location.
Reassemble any removed panels or covers.
Confirm all tools and materials have been cleared from the area.
Power up the equipment one final time to confirm full system operation.
Installation Complete
The GS-364 (TTU-3640) is now installed and transmitting data.
Perform a quick system check to confirm the device reports the correct equipment ID and status.
FAQs Fin Can Answer
Q: What is the GS-364 (TTU-3640) used for?
→ It’s a heavy-duty ECM-connected GPS device for tracking engine runtime and location on off-road equipment.
Q: Where should I mount the GS-364 (TTU-3640) device?
→ Mount it near a window or upper dashboard area with a clear view of the sky.
Q: How long does it take for the LEDs to turn solid?
→ Typically 5–10 minutes while the device connects to the ECM and downloads updates.
Q: How do I verify that the device is working?
→ Open the mobile app and use Verify GPS Device to confirm “engine running” and GPS lock.
Q: How do I pair (couple) the GS-364 (TTU-3640) to equipment?
→ Use the mobile app > Devices > Field Service Ticket to couple the device and record hour/odometer readings.
📞 Need Help?
Email: support@fleetwatcher.com