Spider Series M-1500PRO: Troubleshooting Feet Not Locking or Cams Out of Sync When the Pedal is Pressed

Introduction

This tutorial provides step-by-step instructions for correctly assembling and adjusting the pedal assembly on the Spider M-1500PRO mobile base, ensuring all cams are aligned and functioning in sync. It is crucial that these adjustments are made carefully to ensure proper operation of the base. Always follow manufacturer guidelines and consult the official manual for any additional details or specific instructions.

Safety Warnings and Precautions

Before starting the assembly or making any adjustments to the mobile base, please take the following safety precautions to prevent injury or damage:

• Heavy Equipment Handling: Mobile bases for heavy equipment can be difficult to move and adjust. Always ensure that the equipment is stable and properly supported before performing any work.
• Personal Protective Equipment (PPE): Wear appropriate PPE, including gloves and safety footwear, when handling heavy parts or tools.
• Stabilization: Always make sure the mobile base is securely immobilized to prevent accidental movement during adjustments. Use wheel chocks, if available, to secure the base in place.
• Work Area: Keep your work area clear of obstacles, and ensure proper lighting for visibility.
• Consult the Official Manual: Refer to the official manual for your specific model to confirm details about the assembly and adjustment process.

Tools Required

• Metric Hex Wrench Set

Step-by-Step Guide: Assembling and Adjusting the Pedal Assembly

Step 1: Verify the Initial Position of the Cams

Before starting the pedal assembly, ensure that all cams are fully raised (in the "highest" position) at the same time. This is crucial because if the cams are out of sync, the pedal assembly may fail to function properly. Set all four regulating screws' height positions on the corner caster to be centered in the middle of the channel. If the height adjustment screws are set too high or too low it can affect the functionality when pressing the pedal down to extend and lock the feet. 

• Tip: If you're unsure whether the cams are aligned, gently rotate them by hand to confirm they are all at the highest position while the pedal assembly is loose on the camshafts.

Step 2: Position the Pedal Assembly

With the cams fully raised, position the pedal assembly over the camshafts. Ensure that the pedal is loose on the camshafts at this stage. The pedal assembly should not be fastened until the cams are correctly aligned.

Step 3: Tighten the Two Setscrews

Once the pedal assembly is in place and the cams are in the UP position, begin by tightening the two setscrews on the pedal assembly.

• Tighten these screws as securely as possible to prevent any slipping.
• Important: Ensure that the pedal assembly is aligned properly with both sides of the camshafts. If either side slips, it can lead to improper synchronization of the pedal and cams.

Step 4: Tighten the Six Cap Screws

After the setscrews are tightened, move on to tightening the six cap screws. These screws help secure the pedal assembly in place.

• Tip: It’s a good idea to tighten screws alternately across the pedal assembly. This ensures even pressure distribution and helps prevent the pedal assembly from becoming misaligned.

Step 5: Double-Check the Tightness of All Fasteners

As you tighten the screws, check that none of the pedal fasteners become loose or shift out of place. In some cases, tightening one side of the pedal assembly may cause the opposite side to loosen.

• Tip: Go back and forth between tightening the screws to ensure all are fully tightened. Check that no screws can be tightened further once all cams are in the UP position.

Step 6: Check for Cam Synchronization

After the pedal assembly is securely fastened, test the movement of the cams by gently operating the pedal. All cams should move in sync without any side slipping.

• Important: If any cam has moved lower or is out of sync, it must be raised fully to its highest position before continuing the assembly process. Failure to do so will result in cam misalignment, causing the pedal to malfunction and not lock properly.

Step 7: Final Inspection

Once all screws are tight and the cams are properly aligned, conduct a final inspection. Make sure:

• The pedal is operating smoothly without any resistance or misalignment.
• All screws and fasteners are securely tightened.
• The mobile base is stable and immobile, with no parts slipping or shifting with the pedal engaged.

Conclusion

By following these steps carefully, you should be able to properly assemble and adjust the pedal assembly on your mobile base. It's essential that al of the cams are set in sync, as any misalignment can cause issues with the base's functionality.

Remember to consult the official manual for additional guidance specific to your equipment model. If the issue persists or you have any concerns about the assembly process, please reach out to our technical support team for further assistance.

Disclaimer

This tutorial provides general guidance on assembly and adjustment of pedal assemblies on mobile bases. For your safety and to ensure proper operation, always refer to the official manual for your specific equipment model. The official instruction manual should always take precedence over this tutorial in case of discrepancies.