How to Rebuild a Metro 1 Fire Nozzle | Fix Sliding Shaper, Leaks & Internal Wear

Is your Metro 1 nozzle shaper sliding instead of twisting? Seeing water leaking around the shaper or coupling? In this TFT service guide, firefighter Doug Heller from the Task Force Tips service team walks through how to diagnose and repair common Metro 1 nozzle issues. This video covers a full teardown and reassembly of the break-apart Metro tip, including replacing worn components, restoring proper shaper function, and eliminating leaks. This service video is especially helpful if your nozzle: • Slides back and forth instead of twisting between straight stream and fog • Leaks water from beneath the shaper or around the coupling • Took a front-end impact that damaged the internal guide balls • Needs routine maintenance after years of reliable service The Metro nozzle is built for firefighters demanding reliability and hard-hitting streams in demanding environments. With fixed flow rates from 95–325 GPM and operating pressures of 50, 75, or 100 PSI, the Metro provides durable performance with the flexibility of changeable flow discs for future adjustments. Lightweight, durable, and maneuverable, Metro nozzles are trusted by aggressive fire departments across the world. More information on the Metro series: https://tft.com/brand/metro/ Repair Kits Referenced in This Video These kits contain the parts typically needed to repair the issues demonstrated in this service guide. Mid-Range Valve Bail Handle Repair Kit https://tft.com/product/hm950-kit Metro 1 Flow Disc Kit https://tft.com/product/me1-to-kit Mid-Matic, Mid-Force, and Metro 1 Valve Seal Overhaul Kit https://tft.com/product/hm960-kit Mid-Range Nozzle Stream Shaper Repair Kit https://tft.com/product/hm880-kit Metro 1 and Metro 2 Flow Disc Service Tool https://tft.com/product/th505-kit Metro 1 Valve Calibration Kit https://tft.com/product/me1-v-kit What You’ll Learn in This Video • How the Metro fixed-gallonage nozzle operates • How to remove the shaper assembly • How to replace damaged Torlon guide balls • How to identify and replace worn O-rings causing leaks • How to clean and lubricate the internal nozzle components • How to reinstall the shaper and shaper guide correctly • How to reinstall the coupling and ball bearing race • Why a proper flow test is required after service Many of these repairs can be completed with basic tools in about 30–60 minutes depending on the condition of the nozzle. Tools Referenced • 1/8" Allen wrench • Strap wrench • Shaper guide clamp tool (optional but recommended) • Silicone grease (Molykote 112 or equivalent) • Blue and red Loctite • Cleaning solvent (acetone or equivalent) Need Help? If you have questions after watching this service video, the TFT service team is ready to help. Email: [email protected] Phone: (800) 348-2686 YouTube Chapters 0:00 Introduction – Metro 1 Nozzle Service 0:27 Who This Video Is For 0:51 How the Metro Nozzle Works 1:45 Tools You'll Need 2:16 Get Your Repair Kits 2:25 Taking the Shaper Apart 6:27 Replacing Torlon Balls and O-Ring 10:57 Cleaning and Lubricating Interior 12:59 Greasing Grooves and Barrel Cone 13:38 Installing the Shaper 14:01 Installing the Shaper Guide 17:11 Installing the Coupling 20:21 Installing the 34 Ball Bearings 20:45 Installing the Coupling Set Screw 22:56 Perform Flow Test After Service 23:18 Watch Part 2 – Valve Repair