In this article we cover the following:
- The tools you will need
- A step by step guide
This is a list of tools you will need to fit braided hose fittings. Most of you will have this equipment in your garage or workshop. One item that makes fitting hose ends a lot easier is a set of vice jaws.
- Spanners, imperial sized and with polished face to the spanner jaws, this avoids marking the anodised finish
- Light oil
- A saw with fine teeth
- Masking tape
- Pliers and snips
- Stanley knife
- Protective gloves and glasses
- Vice Jaws
A Step by Step Guide
Just to remind you, we are using stainless steel hose here.
Step 1 – Cutting the Hose
Mark the cutting position by wrapping some masking tape around the hose. Use a pencil to mark the precise cut position. The masking tape also stops the braid from fraying whilst cutting. We show the hose being cut with a junior saw. This is the method most ‘at home’ hose assemblies will be cut with. You could use hose shears or commercial hose cutting equipment, but using a fine tooth saw is fine.
Hold the hose securely without squashing it, the vice jaws make this easy to do.
When cutting the braided hose with a fine tooth saw allow the blade to cut through without exerting any significant pressure. It is important to cut the hose square.
If you have any stray pieces of stainless steel remove them with your snips. Remove the masking tape.
Step 2 – Socket Nut
Double the check the hose is clean and free from any particles after being cut. We are going to insert the cut braided hose into the socket nut. To do this we use a twisting and pushing motion until the end of the hose is in as far as the back of the threads inside the socket nut.
You may be aware there are a number of tools on offer that guide the hose into the socket. However, in my many years of making up hose assemblies I have never felt the need or requirement to use any of them. In the adverts these companies use to promote such tools they all tend to show poorly cut hose with a scruffy end. Care and attention when cutting the hose (and at every stage) is what making up hoses is all about.
As a precaution we mark the position of the hose against the back of the socket nut. Use some masking tape wrapped around the hose where it meets the back of the socket. This acts as a marker to show if the hose has been pushed out during assembly.
At this stage I always find it useful to apply a small amount of oil to the inside of the hose. Using long nosed pliers inserted into the hose, gently open out the hose. There is no need for any significant force to be deployed, this is just to be sure the hose is round and open to accept the hose end.
Using some light oil, in this case we use ‘3 in 1 oil’, place a few drops on the threads and the nipple of the hose end. Also oil the threads of the socket nut, already fitted to the hose (step 4).
Step 6 – Fitting the Hose End
With the hose and socket nut held in the vice jaws, insert the hose end into the socket and hose. Using some pressure to push against the hose end, engage the threads as far as you can. Typically this may just be enough to hold the hose end whilst you get a spanner to help. Be sure to avoid cross threading. Hold the hose to stop it from being moved.
Step 7 – Tighten the Hose End
Using the correct sized imperial spanner, tighten the hose end into the socket nut. Apply a few drops of oil to the exposed threads as you tighten. Keep going until you have a gap of approximately 1.00 mm between the socket nut and the hose end nut. Align the flats for a professional finish.
Step 8 – The Finished Item
This hose end is finished. Have a look at the masking tape we put on the hose in Step 3, minor movement like this is fine and expected. Significant movement would suggest the hose is not properly held in the place.
We fit AN hose ends to hose for free, we always have done. This applies to hose ends and hose purchased directly from Speedflow Products Limited.