HPI Racing Micro RS4 115733 Exploded View
![HPI Racing Micro RS4 115733 Race Kit manual cover](/images/DbNmBGzdjEASFdOfNBMJpemm/thumbs/thumb175x175.webp)
To install the battery, first remove the body shell by unclipping it from the chassis. Insert the battery pack into the designated battery compartment, ensuring the connectors are aligned correctly. Secure the battery with the included strap and reconnect the body shell.
Check if both the transmitter and the car are turned on. Ensure that the batteries in both devices are fully charged. Verify that the transmitter and receiver are properly bound. If the problem persists, check for any loose or damaged wires.
For better performance on smooth surfaces, consider using tires with softer compounds for increased grip. You can also adjust the suspension settings to lower the ride height, enhancing stability and cornering speed.
Regular maintenance includes cleaning the chassis and components, checking for loose screws, lubricating moving parts, and inspecting the drivetrain for wear. Additionally, ensure that the tires are in good condition and replace them if necessary.
If your car is running slower, check the battery charge level first, as a low battery can reduce performance. Inspect the drivetrain for any obstructions or binding, and clean the gears and bearings to ensure smooth operation.
To adjust the steering, use the trim dial on the transmitter to fine-tune the steering alignment. For more precise adjustments, manually adjust the steering linkage on the car to ensure the wheels are properly aligned when the steering is centered.
Available upgrades include high-performance motors, upgraded suspension components, ball bearings, and lightweight chassis parts. Additionally, you can enhance aesthetics with custom body shells and decals.
To replace the motor, first remove the body shell and disconnect the motor wires. Unscrew the motor mount screws and carefully extract the motor from the chassis. Install the new motor by reversing these steps, ensuring the pinion gear meshes correctly with the spur gear.
Signs that tires need replacement include visible wear such as bald spots or cracks, reduced traction, or if the tires are consistently losing air. It's important to replace worn tires to maintain optimal handling and performance.
To extend runtime, use a battery with a higher capacity (measured in mAh). Additionally, ensure the car is well-maintained to reduce energy loss from friction or binding. Driving smoothly, without aggressive acceleration and braking, can also help maximize battery life.