Gulfstream 1159GSEP50109-1 - WOW Switch Adjustment Tool
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The Main Gear WOW Switch Adjustment Tool (Gulfstream 1159GSEP50109-1) is a precision special tool engineered for the accurate rigging and adjustment of the main landing gear weight-on-wheels (WOW) proximity switches found on Gulfstream 1159-series airframes. The WOW system provides critical air/ground sensing that governs ground spoilers, braking logic, and gear sequencing, so correct switch adjustment is essential to safe, reliable operation.
Key Features
- Purpose-built to gauge and set main landing gear WOW proximity switch position to OEM tolerances
- Supports repeatable, technician-friendly rigging during scheduled maintenance and switch replacement
- Designed to the 1159GSEP50109-1 specification for fit and function on the main landing gear assembly
- Reduces guesswork and rework versus improvised measurement methods
Specifications
- Tool type: landing gear WOW switch rigging / adjustment tool
- Application: main landing gear weight-on-wheels (WOW) proximity switch
- Aircraft series: Gulfstream 1159-series
- Material, dimensions, and weight: refer to Gulfstream maintenance documentation
Applications
Used by MRO facilities, A&P mechanics, and aviation maintenance technicians to adjust and verify main landing gear WOW switch rigging in accordance with the applicable Gulfstream maintenance manual. This OEM special tooling helps ensure the weight-on-wheels system transitions cleanly between air and ground modes, supporting correct spoiler, brake, and gear-warning logic.
| General Information | |
|---|---|
| Part # | 1159GSEP50109-1 |
| Manufacturer | Gulfstream |
| Shipping Information | |
|---|---|
| Product Weight | 0.06 lbs. |
| Product Dimensions | 4 x 3 x 1 in. |
| Schedule B | 8807300010 |
| ECCN | 9A991.d |
| Specifications | |
|---|---|
| Aircraft Series | Gulfstream 1159-Series |
| Application | Main Landing Gear Weight-on-Wheels (WOW) Switch |
| Dimensions | Refer to OEM documentation |
| Material | Refer to OEM documentation |
| Switch Type | Proximity / Weight-on-Wheels Sensor |
| Tool Type | Landing Gear Switch Rigging / Adjustment Tool |
| Weight | Refer to OEM documentation |
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AIRCRAFT COMPATIBILITY
| Compatible Aircraft* |
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QUESTIONS & ANSWERS
The Gulfstream 1159GSEP50109-1 is a special tool for rigging and adjusting the main landing gear weight-on-wheels (WOW) proximity switch to the correct position per Gulfstream maintenance procedures.
It is intended for Gulfstream 1159-series main landing gear. Confirm exact model applicability against the applicable Gulfstream maintenance manual before use.
The WOW switch drives air/ground sensing for ground spoilers, braking, and gear-warning logic, so accurate rigging is critical to correct system behavior.
