Replacement limit switch with 2" clevis pin for Bigfoot leveling systems with octagonal or hexagonal footpads. Made in USA.
The Bigfoot M50103 is a replacement limit switch assembly with pin designed for Bigfoot hydraulic leveling systems. This critical component detects when jacks are fully retracted, enabling the "All Up" indicator lights on your control panel and the ignition alarm safety feature. Compatible with both Central Pump and Quad Pump systems that use 7" or 10" octagonal or hexagonal shaped footpads.
The limit switch assembly includes a ball switch with weatherproof plug, 2" clevis pin, and male/female spade connectors. Manufactured in the USA by Quadra Manufacturing, this is a genuine Bigfoot replacement part that ensures proper system operation and safety features.
This Switch Works With: • 7" octagonal or hexagonal footpads • 10" octagonal or hexagonal footpads • Central Pump leveling systems • Quad Pump leveling systems This Switch Does NOT Work With: • 6" circular flat footpads (use M50103FLAT instead) • Flat footpads without dome pivot Check your footpad shape before ordering to ensure compatibility.
Tools Needed: • 7/8" wrench • Butt connectors (for Quad Pump systems only) Installation Steps: 1. Remove old limit switch with 7/8" wrench 2. Install new switch and pin assembly 3. Connect electrical connectors (plug in or use spade connectors) 4. For Quad Pump systems: Connect two wires using butt connectors (not included) 5. Test operation to ensure "All Up" light functions properly
In The Package: • M50103 Ball Switch with Weatherproof Plug • 2" Clevis Pin • Male & Female Spade Connectors (Shipped Loose) NOT Included: • Butt connectors (required for Quad Pump systems) • 7/8" wrench for installation
Common Signs Your Limit Switch Needs Replacement: "All Up" Light Not Working: If your control panel doesn't show "All Up" even when jacks are fully retracted, the limit switch may be faulty. No Ignition Alarm: If you don't hear an audible alarm when turning the ignition key with jacks down, the limit switch may not be detecting jack position. Rust or Corrosion: Limit switches exposed to road salt, mud, or moisture can rust and fail to make proper electrical contact. Bent or Jammed Pin: Debris on jack pads can bend the actuator pin or jam the switch internally, preventing proper operation. Maintenance Tip: Clean limit switches regularly and spray with WD-40 to prevent rust and ensure reliable contact.
Quadra Manufacturing Technical Support: Phone: (800) 752-9815 Address: 305 US-131 South, White Pigeon, Michigan 49099 Hours: Monday-Friday 8:00 AM - 4:00 PM EST