Sunday, June 10, 2012

How To Replace Oven Door Hinges

A pretty common problem with older ovens is that the door no longer stays closed due to faulty hinges. This is the case with my friend's 15 year old Ariston oven. Its pretty easy job to replace the oven door hinges. Even tho the cooker is pretty old replacement hinges are available online. This is an Ariston Oven but the sequence is similar for other makes.

Oven Door Hinge Replacement Step 1

Remove the door from the oven  as described in this post: How to remove an oven door.

Oven Door Hinge Replacement Step 2

Place the door on a flat surface and remove the 4 screws at the bottom of the door.


Ariston oven door


Oven Door Hinge Replacement Step 3

Once the 4 screws have been removed we lift away the chromed metal plate from the bottom of the door and carefully slide the outer door glass (door fascia) out of the handle which retains it along the upper edge.


ariston


Oven Door Hinge Replacement Step 4

The outer glass is lifted away to reveal the hinges are now only held in place by a metal tab at the top and can be lifted out .

oven door hinges


Oven Door Hinge Replacement Step 5

The replacement door hinges need to be partially opened using a large screwdriver or pliers. They can then be slotted into place in the oven door.

fix oven door hinge


Oven Door Hinge Replacement Step 6

Once the new hinges are in place it's just a matter of reversing the sequence to reassemble the door and fit it back to the oven. Take care when opening the door hinges and blocking them open using the small metal tabs they can easily spring shut - This is best done by 2 people, one holds the hinge in the open position with pliers and the other uses a flat screwdriver to open the flap and lock the hinge open ready to slot into the holes each side of the oven.

oven door hinge




How To Replace The Oven Door Glass

The inner door glass of this Ariston oven was glued in place at the factory. Unfortunately it had become partially unstuck and needed gluing back in place. To do this you nee a silicon glue which can withstand the 300ºC temperature of the oven and remain flexible to absorb the expansion and contraction of the metal door frame. I couldn't find this in my local hardware store so once again I had to buy online. Luckily there are various options available. I bought 3 tubes of glue from www.ovendoorglue.co.uk which came with a handy scraper and plastic gloves to protect your skin from the silicon glue.

PLEASE READ THE ENTIRE ARTICLE BEFORE STARTING THE REPAIR!

How to Replace Oven Door Glass Step 1

First we remove the door from the oven as described in this post: How to remove an oven door


How to Replace Oven Door Glass Step 2

Next we disassemble the oven door as described in this post: How to replace oven door hinges


How to Replace Oven Door Glass Step 3

We now remove the partially unstuck inner door glass from the door frame and thoroughly clean both parts with KH7 de-greaser. We scrape off the left over glue and any burnt on grease using a razor blade scraper before cleaning both parts again with the de-greaser.

oven door glass



How to Replace Oven Door Glass Step 4

Once both parts are thoroughly clean and grease-free we clean the glass and the metal where we are going to glue it to with alcohol. Lastly we wipe the surfaces which are going to be glued with the wipes provided with the glue. It is essential that both parts are absolutely clean and grease free otherwise the glue wont stick properly.

clean ariston door


How to Replace Oven Door Glass Step 5

Te next step is to prepare ourselves to glue the glass back in place. We put newspaper on the kitchen table to protect it and the oven door on top. We then put the glass in place and use small strips of masking tape to mark where the glass goes. The strips of tape are both a guide for when we put the silicon glue on the frame and subsequently allow us to locate the glass correctly without having to move it and smear the glue around. We also do a dry run with the cam clamps to check that we are 100% ready before adding glue - this avoids nasty surprises when the glue is applied.

How to Replace Oven Door Glass Step 6

Apply a continuous bead of glue around the perimeter of the metal frame using the strips of masking tape as a guide.

NOTE: There is a 2mm lip around the edge of the metal frame. This means that it is essential that the bead of glue is deep enough to ensure that it comes into contact with the glass all the way round. We used 3 tubes of silicon glue.

glue door glass


How to Replace Oven Door Glass Step 6

Now we position the glass in the door and clamp it gently in place with 2 cam clamps (using plywood to spread the load evenly across the glass). It is important that you don't clamp it too tightly, the idea is to hold the glass in place as the glue dries, not to create "glue squeeze-out" or heaven forbid damage the glass!




How to Replace Oven Door Glass Step 7

We leave the glue to dry for 48 hours before un-clamping. Once the clamps are off we remove the strips of tape and check that the glass is glued in place correctly.

How to Replace Oven Door Glass Step 8

Finally we reassemble the door as described in the post: How to replace oven door hinges

And reattach it to the oven as described in:  How to remove an oven door


As always, if you have any comments or questions please leave a comment below.





Sunday, April 22, 2012

How to Repair a Broken Rolling Window Shutter.

If you live in a house or flat with rolling shutters then you’re probably familiar with the problem of a fallen shutter that you can’t raise.

There are 2 common causes:

1. The webbing strap which raises the blind has worn and broken.
2. The blind has separated from the drum which it rolls around.

Today we are dealing with the second of these 2 causes.

This type of failure is common in old shutters.

The plastic becomes brittle with age and prone to breaking.



Here we can see that the top lamina has broken at the point of attachment to the drum.The shutter then fell shut.

This is how we go about repairing the broken shutter:

1. Drill out the pop rivets and open the exterior plastic flap. This allows you to get access to the roller mechanism/ drum.




2. Wind the drum into the “down” position. If you forget to do this you will not be able to wind the shutter back up once repaired.

3. Remove the webbing straps which connect the blind to the roller drum ( self-tapping metal screw)

4. Carefully raise the shutter in the guides until the broken lamina is free to be disconnected from the second lamina. The plastic laminas slot together and can be easily slid apart.



5. Take the broken lamina to your local hardware shop and buy a replacement cut to the same size. (In this case we didn’t buy a replacement lamina since the remaining laminas were enough to allow the shutter to close properly. When the next lamina down breaks we’ll buy 2 replacements! Sometimes when the roller blind slams shut other brittle laminas also break and need to be replaced. This is easy to do since the laminas simply slide together.)

6. The replacement lamina slides into place.




7. Slide the 2 attachment straps onto the top lamina.

8. Screw the attachment straps to the drum and wind the roller shutter up and down to make sure that everything works correctly.


9. Close the plastic flap and secure it in place either with Pop Rivets (as original) or if you don’t have a rivet gun you may prefer to use self-tapping screws (as we have here).

10. Job done!