The Bobcat 325 and 328 Mini Excavators are compact machines designed for versatility and efficiency in various construction and excavation tasks. These models are known for their robust performance, maneuverability, and ability to operate in confined spaces.
In terms of electrical components such as the fuse box and relay, they are critical for the proper functioning of the excavators’ electrical systems. The fuse box houses fuses that protect individual circuits from electrical overloads, thereby preventing damage to the components and ensuring safety. Relays, on the other hand, are electromechanical switches that control high-current circuits, allowing for efficient operation of various functions like hydraulic systems, lights, and auxiliary attachments.
Regular inspection and maintenance of the fuse box and relays are essential to prevent electrical failures that could potentially halt operations on the job site. Proper care ensures that the Bobcat 325 and 328 Mini Excavators continue to deliver reliable performance and productivity in demanding work environments.
MUST READ: DYI – How to Check Car Fuses?
Bobcat 325 & 328 Mini Excavator fuse box and relay with Diagram
WARNING
- Never replace a fuse with one that has a higher amperage rating.
- A fuse with a too-high amperage could damage the electrical part and cause a fire.
- On no account should fuses be repaired (e.g. patched up with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause a fire.
- If a fuse blows repeatedly, do not keep replacing it. Instead, have the cause for the repeated short circuit or overload tracked and fixed.
- Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
Bobcat 325 & 328 Mini Excavator fuse assignment
Fuse Box
| No. | Ampere | Description |
|---|---|---|
| 1 | – | Not Used |
| 2 | 25A | Heater |
| 3 | 5A | Ignition |
| 4 | 25A | Fuel Solenoid |
| 5 | 5A | Wiper |
| 6 | 20A | Switch Power |
| 7 | 25A | Alternator/Heater |
| 8 | 25A | ACD (Attach. Control Device) |
| 9 | 25A | Controller |
| 10 | 25A | ACD (Attach. Control Device) |
| 11 | 20A | Lights |
| 12 | 15A | Accessory Plug |
| Relay | ||
| E | Switched Power | |
| F | Fuel Solenoid | |
| G | Lights | |
| H | Glow Plugs | |
| J | Starter | |
The Excavator has a 12 volt, negative ground electrical system. The electrical system is protected by fuses located under the right side cover of the Excavator (Item 1). The fuses will protect the electrical system when there is an electrical overload. The reason for the overload must be found before starting the engine again.