1. Informações importantes de segurança
Before operating the FEIERDUN 3-in-1 Leg Press Hack Squat Machine, please read and understand all instructions in this manual. Keep this manual for future reference. Failure to follow these instructions may result in serious injury or equipment damage.
- Consulte um médico antes de iniciar qualquer programa de exercícios.
- Certifique-se de que todos os componentes estejam montados corretamente e firmemente fixados antes de cada utilização.
- Do not exceed the maximum weight capacity of 1200 lbs for the machine.
- Always use the safety pins and handle safety settings to prevent accidental drops.
- Mantenha crianças e animais de estimação longe do equipamento durante a operação.
- Execute os exercícios com movimentos controlados. Evite movimentos bruscos ou repentinos.
- Use calçado e roupa adequados para a prática de desporto.
2. Produto acabadoview
The FEIERDUN 3-in-1 Leg Press Hack Squat Machine is designed for comprehensive lower body training, combining a leg press, hack squat, and stretch board into one versatile unit. It features a heavy-duty steel frame for durability and stability.
Principais características:
- Funcionalidade 3 em 1: Seamlessly switch between leg press, hack squat, and stretch board modes.
- Ultra-Quiet Pulley System: Upgraded pulleys ensure smooth, stable sled movement with noise levels under 50 dB.
- Triple Safety Protection: Dual-side safety pins with 3 adjustable lockout positions, 5-level handle safety settings, and a leg press bottom control valve for enhanced user safety.
- Amplitude total de movimento: Supports extended ROM for effective muscle targeting (quads, glutes, hamstrings, core).
- Maximum Adjustability: Features 6 adjustable footplate angles and 5 base height settings to accommodate users from 4'9" to 6'4".
- Construção durável: Built with a heavy-duty steel frame and reinforced welds, supporting up to 1200 lbs.
- Design confortável: High-quality, wear-resistant leather padding and wide, flat shoulder pads for comfort during intense workouts.
- Compatibilidade com placas de peso: Compatible with both 1" and 2" Olympic weight plates without additional adapters.

Image: The FEIERDUN 3-in-1 Leg Press Hack Squat Machine demonstrating its three primary functions: leg press, hack squat, and leg stretch.

Image: Visual comparison highlighting the ultra-quiet pulley system of the FEIERDUN machine against a traditional noisy bearing system.
3. Configuração e montagem
The FEIERDUN 3-in-1 Leg Press Hack Squat Machine is delivered in multiple boxes (typically 5 separate boxes) and requires assembly. Due to the weight and size of the components, Recomenda-se que a montagem seja feita por duas pessoas. to ensure safety and ease of installation.
- Unpack all components and verify against the parts list in the included instruction booklet.
- The hardware (nuts, bolts, washers) for each step is typically organized and packaged separately, making assembly more straightforward.
- Follow the step-by-step instructions provided in the dedicated assembly manual for detailed guidance.
- Ensure all bolts are tightened securely after assembly.

Image: The product packaging, indicating that the machine is shipped in multiple boxes for safe delivery.
4. Instruções de operação
This machine offers three primary modes of operation: Hack Squat, Leg Press, and Stretch Board. Always ensure the machine is properly configured and safety mechanisms are engaged or disengaged as required for each exercise.
4.1. Hack Squat Mode
- Conversão: Remove the backrest pad from its leg press position. The backrest will then serve as the shoulder pads for hack squats.
- Ajuste da placa de pé: Adjust the footplate to your desired angle using the 6 available positions.
- Posicionamento: Stand on the footplate with your shoulders under the pads and your back against the main carriage.
- Safety Release: Push up slightly to disengage the safety handles.
- Execução: Slowly lower your body by bending your knees, keeping your back straight and shoulders pressed against the pads. Push back up to the starting position.
- Retomar a segurança: Once finished, engage the safety handles before exiting the machine.

Image: A user demonstrating the hack squat exercise, emphasizing the full range of motion and targeted muscle groups (quads, glutes, hamstrings, core).
4.2. Leg Press Mode
- Conversão: Attach the backrest pad to its designated position for leg presses.
- Ajuste da placa de pé: Adjust the footplate to your preferred angle.
- Posicionamento: Sit comfortably on the seat with your back firmly against the backrest. Place your feet shoulder-width apart on the footplate.
- Safety Release: Push the footplate forward to disengage the safety handles.
- Execução: Slowly lower the footplate by bending your knees, ensuring your lower back remains pressed against the pad. Push the footplate back to the starting position, extending your legs without locking your knees.
- Retomar a segurança: Once finished, engage the safety handles before exiting the machine.

Image: A user performing leg presses, illustrating the machine's triple safety protection system in action.
4.3. Stretch Board Function
The integrated stretch board can be used for pre-workout warm-ups or post-workout cool-downs to improve flexibility and range of motion in the lower body.
- Position the stretch board as desired.
- Place your feet on the board and lean forward gently to stretch your calves and hamstrings.
Video: An official FEIERDUN Fitness video demonstrating the smooth pulley system and various exercises possible with the Leg Press Hack Squat Machine.
5. Manutenção
Regular maintenance ensures the longevity and safe operation of your FEIERDUN Leg Press Hack Squat Machine.
- Lubrificação: Periodically apply a small amount of lubricant (oil, if provided) to the guide rods and pulley system to maintain smooth operation and prevent noise.
- Inspeção: Regularly check all nuts, bolts, and connections for tightness. Tighten any loose fasteners immediately.
- Limpeza: Limpe a máquina com anúncioamp Limpe com um pano após cada uso para remover o suor e a poeira. Evite produtos de limpeza abrasivos.
- Preenchimento: Inspect the leather padding for any signs of wear or damage.
6. Solução De Problemas
If you encounter any issues with your machine, refer to the following common troubleshooting tips:
- Ruído excessivo: If the machine becomes noisy during operation, apply lubricant to the guide rods and check the pulley system for any obstructions.
- Dificuldade em alternar entre modos: Ensure all pins and adjustment mechanisms are fully disengaged or engaged as required. Check for any obstructions preventing smooth movement.
- Operação instável: Verify that all assembly bolts are securely tightened and the machine is placed on a flat, stable surface.
For issues not covered here, please contact FEIERDUN customer support.
7. Especificações
| Recurso | Detalhe |
|---|---|
| Nome do modelo | DDJ-002 |
| Marca | FEIERDUN |
| Maximum Machine Support Weight | 1200 libras |
| Recomendação de peso máximo do usuário | 500 libras |
| Dimensões do item (CxLxA) | 88.98"P x 33.07"L x 60.23"A |
| Peso do item | 69.2 Pounds (machine only) |
| Material | Liga de aço |
| Cor | Preto |
| Componentes incluídos | FEIERDUN Leg Press Hack Squat Machine, 100 LBS Olympic Bumper Plates (25 lbs*4pcs) |
| Faixa de altura do usuário | 4'9" a 6'4" |

Image: The robust construction of the FEIERDUN machine, highlighting its heavy-duty steel tube frame and 1200 lbs weight capacity.
8. Garantia e Suporte
Your FEIERDUN 3-in-1 Leg Press Hack Squat Machine comes with a Garantia de 1 anos a partir da data da compra, cobrindo defeitos de fabricação.
For warranty claims, technical support, or any questions regarding your product, please contact FEIERDUN Fitness customer service. Please have your purchase receipt and product model number (DDJ-002) available when contacting support.
Contact information can typically be found on the FEIERDUN official website ou através do seu revendedor.