Eaton Weatherhead Training Hose & Thread Identification Series Click on the screen to start the lesson. Eaton Weatherhead Hydraulics Training Series Module 1 Module 2 Module 3 Weatherhead Hose & Thread ID How to Crimp Weatherhead Hoses & Fittings Weatherhead Product & Applications Welcome to the Eaton Weatherhead series of Hydraulic Product Training focusing on key topics to assist you in servicing your hydraulics customer base. Eaton’s Hydraulic Group is a worldwide leader in the design, manufacture and marketing of a comprehensive line of reliable, high-efficiency, hydraulic systems and components. Weatherhead has one of the industry’s broadest offerings of hose and fittings that are widely used through out multiple market applications. Click Next >> to continue. Eaton Weatherhead Training Series Hose & Thread Identification Hydraulic hose assemblies come in a wide variety of lengths, sizes, and end fitting configurations. In this module, you will learn why hose and fitting identification is so important when building hydraulic hose assemblies. These assemblies often have high pressure, high temperature fluids flowing through them. Attention to product specifications is critical to everyone’s safety. Accurate identification of ports and connectors in fluid systems is necessary before the correct hose assembly can be selected. Be confident that the replacement provided to your customer is the right one, the first time. Click Next >> to continue. Eaton Weatherhead Training Series Hose & Thread Identification These training topics are designed to provide a meaningful understanding of hose and fitting identification with a focus on the most frequently seen assemblies in the marketplace. • • • • • • • Port and connector basics Dimensions cross reference review Common measurement tools Hydraulic hose types Common connector styles Measuring threads for various connector styles Using thread identification charts to lookup connector types Eaton Weatherhead Training Series Hose & Thread Identification The purpose of a hydraulic system is to transfer hydraulic pressure in order to perform a mechanical operation like extending a cylinder. This training will focus on the hose assembly. Typically the hose assembly is the most commonly replaced item in the hydraulic system because of its constant flexing and exposure to harsh environments. PUMP PORT HOSE ADAPTER ASSEMBLY HOSE END COMPONENT Eaton Weatherhead Training Series Hose & Thread Identification Handy cross reference table Size Fraction Decimal -04 1/4” .250 -05 5/16” .312 -06 3/8” .375 -08 1/2” .500 -10 5/8” .625 -12 3/4” .750 -16 1” 1.000 -20 1-1/4” 1.250 -24 1-1/2” 1.500 -32 2” 2.000 Eaton Weatherhead Training Series Hose & Thread Identification Having the proper tools on hand, is a key contributor to successful thread identification. The FT1341 is a thread measuring tool kit, which also includes a booklet of charts and information about numerous types of connections. There are three measuring tools recommended to quickly measure a connector in hand: 1. A thread pitch gauge Thread pitch gauge Reference Guide 2. A seat angle gauge 3. An I.D/O.D caliper 2 in 1 seat angle/caliper tool Use the reference guide to quickly convert your measurements into a part number Click Next >> to continue. Eaton Weatherhead Training Series Hose & Thread Identification A thread pitch gauge is used to measure two types of threads: 1) Non metric: Number of threads per inch for non-metric connectors 2) Metric: Distance between threads for metric connectors Thread pitch gauge A seat angle gauge is used to measure the sealing surface of both male and female connectors. The caliper is used to measure the thread diameter 2 in 1 seat angle & caliper tool Higher res images here Click Next >> to continue. Eaton Weatherhead Training Series Hose & Thread Identification You will also use a series of reference charts to determine which connectors to consider. These charts will be reviewed in more detail later in the course. Reference charts used for connector selection focus on the following characteristics: • Thread diameter • Thread pitch • Seating angle Click Next >> to continue. Eaton Weatherhead Training Series Hose & Thread Identification Question 1 A thread pitch gauge is used to measure of threads: which two types Select the best answer, then click Submit. A. Number of threads per inch for non metric connectors B. Distance between threads for metric connectors C. All of the above Submit Eaton Weatherhead Training Series Hose & Thread Identification Hose failures are often due to age, improper use, poor assembly, or poor installation. Proper hose identification is the first step in the replacement process. Start by inspecting the hose for a layline. A layline may contain the following information: - Manufacturer - Hose name - Part number Manufacturer/ - Hose pressure rating Brand Hose Name - Hose I.D. (inner diameter) - Industry standard number Part Number Hose I.D Industry Standard Number Another key piece of information is the application, be sure to ask how or where the hose assembly was used, and on what type of equipment it was used on. Click Next >> to continue. Eaton Weatherhead Training Series Hose & Thread Identification If a layline isn’t visible, an inspection of the hose construction may offer some clues. Hoses may have a braided, or spiral construction with different exterior cover styles depending on the application. Braided hose can have 1 or 2 layers - Braids can be fiber, steel or combination of both Spiral hose can have 4 or 6 layers - Spiral plies are usually steel Rubber hose is typically a single fiber braid Click Next >> to continue. Eaton Weatherhead Training Series Hose & Thread Identification Question 2 Multiple Choice: Check the box if the identifier listed is on the layline example below: Manufacturer/Brand Hose name Part number Hose pressure rating Hose I.D. (inner diameter) Industry standard number Click Next >> to continue. Eaton Weatherhead Training Series Hose & Thread Identification Question 3 A customer brings in a broken hose assembly. What steps should you take to identify the hose type? Select the best answer, then click Submit. A. Inspect the hose for a layline identifier such as manufacturer, or hose specifications B. Ask the customer what application the hose assembly was used on C. Inspect a cross section of the hose for a spiral or braided pattern D. All of the above Submit Eaton Weatherhead Training Series Hose & Thread Identification Now that you’ve reviewed hose identification, let’s now learn how to determine what connection to use on each end of the replacement assembly. Selecting the right connector starts by knowing what types of connectors to look for. Here is a list of popular connector types: (click on each for more detail) NPTF: National Pipe Tapered Fuel (LINK TO SLIDE 23) JIC: SAE J514 37 Deg Flare (LINK TO SLIDE 20) ORFS: O Ring Face Seal SAE J1453 (LINK TO SLIDE 21) Flange: BSP: British Standard Pipe (BSPP Parallel & BSPT Taper) (LINK TO SLIDE 19) JIS: Metric/Komatsu: DIN 3902 & Komatsu (LINK TO SLIDE 22) Eaton Weatherhead Training Series Hose & Thread Identification British Standard Pipe Parallel British Standard Pipe Tapered • • The BSPT male thread has tapered threads and a 30° inverted seat. The seal takes place by thread distortion. • Parallel (straight) thread with a constant diameter - The BSPP thread is parallel and the male has a 30° flare seat which seals with a BSPP female on its 30° cone seat. The threads hold the connection mechanically The BSPP is similar to NPSM connections with exception of the thread pitch, which that is different in most sizes. • The BSPT male mates with a BSPT Female usually found as a port connection. • The BSPT is similar to but not interchangeable with NPTF. The thread pitch is different in most sizes and the thread angle is 55° degrees. Eaton Weatherhead Training Series Hose & Thread Identification JIC: SAE J514 37 Deg Flare This connection is very common in fluid power systems. Both the male and female connections have 37 degree seats. The seal takes place by establishing a line of contact between the male flare and the female cone seat. The threads hold the connection mechanically. (Insert Image) Eaton Weatherhead Training Series Hose & Thread Identification ORFS: O Ring Face Seal SAE J1453 This connection offers the very best leakage control available today. The seal takes place by compressing the O-Ring onto the flat face of the female. The threads hold the connection mechanically. (Insert Image) Eaton Weatherhead Training Series Hose & Thread Identification Metric: DIN 3902 Series This connection style consists of a common male and three different female halves. The male has several features: 1) a straight metric thread 2) a 24 degree included angle 3) a recessed counterbore that matches the tube O.D. The female has several configurations: 1) a tube, nut and ferrule 2) a tapered nose/globeseal 3) a tapered nose/globeseal with an o-ring Eaton Weatherhead Training Series Hose & Thread Identification NPTF: National Pipe Tapered Fuel This connection is a tapered thread connector. The seal takes place by deformation of the threads. Thread crests are crushed into mating thread root causing a full metal to metal contact. While it is still used in fluid power, its not recommended as the best option. Eaton Weatherhead Training Series Hose & Thread Identification A recommended part to use for this section to use as an example would be a straight adapter -06 Male Pipe x -06 Male JIC. -06 JIC -06 Male Pipe Step 1 Measure the thread pitch • Holding the fitting straight, place the thread pitch gauge on the threads until the fit is snug. • Determine the number of threads per inch or the distance between threads in metric connections. Step 2 Measure the thread I.D or O.D • Using the caliper, measure the O.D. of the male thread or the I.D. of the female thread. Step 3 Measure the angle of seal • Using the tip of the caliper, or a seat angle, measure the angle of the sealing surface (37° & 45° are most popular) • If angle is a 12 or 24 degree sealing surface, an additional measurement called the ‘r’ dimension is required * Step 4 • Refer to the proper reference chart found in your Eaton Weatherhead Master Catalog to look up the numbers measured using steps 1 -3 -06 JIC should read 18 threads per inch -06 JIC should read 9/16” OD -06 JIC should be the 37 degree angle Click Next >> to continue. Eaton Weatherhead Training Series Hose & Thread Identification Exercise: Component identification with measurement tools Let’s work through an identification example: Using a thread pitch gauge, let’s measure the threads per inch Result: 20 Using the calipers, measure the outside diameter Result: 7/16” This fitting measures 7/16”- 20 Measure the angle of the sealing face Result: 37° degree Click Here for Reference Chart (LINK TO SLIDE 26) Eaton Weatherhead Training Series Hose & Thread Identification Find the size for 7/16-20 37°on the chart below: The fitting we measured together is a 37 degree flare requiring a ¼” tube O.D. Click Next >> to continue. Eaton Weatherhead Training Series Hose & Thread Identification Question 4 What are the three recommended tools used when identifying threads? Select all that apply, then click Submit. A. Thread Gauge B. I.D/O.D Caliper Gauge C. Temperature Gauge D. Seat Angle Gauge Submit Eaton Weatherhead Training Series Hose & Thread Identification Question 5 You’ve just finished measuring the threads of a fitting found on a broken hose assembly brought into your shop. What should you do next? Select the best answer, then click Submit. A. Determine if the fitting is US or Metric B. Refer to the Eaton Weatherhead Hose Assembly Master Catalog for fitting reference charts C. All of the above Submit Eaton Weatherhead Training Series Hose & Thread Identification Exit You have completed the lesson. You may now close the lesson window by clicking the X button on the window.