Curtis 3501 Manual __top__ Jun 2026
Overvoltage. Battery voltage exceeds maximum operating limits. Check charger operation.
The Curtis 3501 utilizes high-frequency MOSFET switching to deliver smooth, silent, and cost-effective speed and torque control. It is commonly implemented in mobility scooters, small material-handling walkies, and golf cars. Key Technical Attributes Permanent Magnet (PM) brushed DC motors. Operating Frequency: 15–16 kHz for silent operation.
The menu system allows operators to change settings, view maintenance data, and customize the display. 3.1 Menu Structure
Can be configured to show battery discharge indicators (BDI), hour meters, and maintenance monitors. curtis 3501 manual
Throttle depressed before key switch or interlock was turned on.
: Connects to the motor plug brake diode or armature/field loop (depending on the specific vehicle wiring diagram configuration). Low-Power Control Wiring (Typical Configuration)
Use heavy-gauge, flexible copper wires matching the factory vehicle specification (typically 6 AWG to 4 AWG). Crimp and heat-shrink all ring terminals. Overvoltage
If the search was for a manual for a , the 3501 model number is less common. Most Wilbur Curtis commercial brewers, such as the Gemini or G3/G4 series, use different numbering conventions. More information may be needed:
Check throttle wiring for breaks; test potentiometer resistance. Main Contactor Driver Contactor coil failed to open/close.
Charge the battery pack; check for loose or corroded battery terminals. Overvoltage Fault The Curtis 3501 utilizes high-frequency MOSFET switching to
The mounting bracket is designed for single-use installation; removing it may break the bracket, according to Curtis manuals .
It is highly recommended to mount the unit vertically with the terminal blocks pointing downwards to minimize dirt, debris, and moisture accumulation on the electrical connections. 3. Wiring Diagrams and Terminal Connections
High-voltage electrical systems should only be serviced by licensed professionals.
