Hegner refurbish

[Phil]

Ok, this is an old project that was posted on WH1 in 2013 and went AWOL with the site.

I know that I will be boring you to tears, but bear with me, it is a very long post as I have copied it in from the Word.doc file

The only thing missing are the forum comments and unfortunately Bob's offer to help me get parts. (Bob = gentleman and a squire)

Why I am now posting it again?


Well that's easy:-

1) I want you to read it all gain (settle down with a beer or three)

2) I will then post the final update

Cheers
Phil




Made a start on the second Hegner.

Machine before stripping

The bellows – quite sad looking ……..

Motor

Drive arm bearing assembly.

Base and bottom arm assembly

Cheers, thank you for looking
Phil

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Some more on the Polycut.


The table adjustment arm.

The base

Arms off and the hex-screws on the main frame sprayed with WD40

Bottom of the base soaked in WD40

The bare base ready for cleaning.

The two pulleys, showing some rust.

The table top – will need some elbow-anglegrinder-exercise!

The main parts ready for cleaning.

Cheers, thank you for looking
Phil

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Getting into the switch box to change the cable

Box open, easy access for the new cable (apologies for poor focus)

Spraying

The back support

Cheers, thank you for looking
Phil

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These are the two pulleys from Hegner #2.
Both show signs of rust.

Question – how do I clean them?
I do not have a wheel puller to get them off, so I can’t bath them in electrolyte.

Comments would be appreciated.

Thanks, cheers
Phil
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Fitting the motor to it’s base.
(going to be an interesting challenges for my fingers to get those bolts back in!)

Cheers
Phil


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Hegner table top - advice

Cleaning up the table top has not been a great exercise.

The top apart from being dirty also has a lot of marks on it where it looks like cans/bottles/whatever was placed.

The cleaning consisted of:-
Scrape the gunge off with a Stanley blade
Steel wool and WD40
WD40 for 24 hours and steel wool
Brasso and steel wool
Angle grinder and wire brush – repeat twice with a wipe off of thinners
Brasso for 24 hours and angle grinder and wire brush – repeat twice

The end result – nice and shiny ………… BUT still the marks remain!

So, what do I do now? Leave it and live with it?

Cheers
Phil

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Hegner #2 stand

The stand before being sanded. Apologies for not having a better foto.

A similar process followed as the other stand. Angle grinder with a wire brush.
More time consuming with all the angles and uprights. Some sanding by hand and a wipe down with thinners.

Undercoat spayed on the bottom.

Undercoat sprayed on the top.

Will see if I can find some time tomorrow to do the first coat of red.

Thank you for looking
Cheers
Phil

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Starting to assemble Hegner#2

Motor on and the pulley drive.

First problem …………………………..

The v-belt has grown is size! It is all of a sudden too big.
The pulley drive is in a fixed position and the motor is as far forward as possible.
Can’t see what the problem is. It will have to wait a week or two.

Thank you for looking
Cheers
Phil
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Motor and pulleys installed and running

Belt cover in place. Needed an extra washer to raise it up a bit, else the belt hits it.

Back support in place, ready for the arms (these are still waiting to be cleaned)

Table legs fitted

Thank you for looking
Cheers
Phil

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Fitting the arm supports. All nice clean and shiny!

Bottom arm and drive bearings fitted.

Taking the top off was a major undertaking with lots of new language and blue air.
It was awkward trying to get spanners, Allan keys and sockets into that small gap.
A few knuckles bumped and bleeding.

So, now the top has to go back on.
This process required some lengthy deliberation, thought and a few beers.

Again another lightning bolt struck! (I am now running at least at 4000V)

Why not leave the legs on which were dry fitted, use a block and tackle to heave it up and gently lower the legs onto the base?
Very good idea, except the back leg does not fit flush under the table. There is a gap and a spring on the bolt.
The back leg was then bolted down onto the base, and aligned as close as possible.

The table was then lifted onto the base, the front leg bolted down and at the same time aligned with the back leg.
Back bolt tapped in, 13mm socket on extensions, and in under 5 minutes the table was on!
(No blue air or any new language.)

The top arm now fitted and ready for the blade alignment check.

The blade just catches the edge of the table, so the table needs to move forward by about 3mm. an additional spacer is required, which means the table has to come off.

This is like an operation, the instruments are laid out …….
13mm socket – check
Ratchet – check
Long socket extension – check
Short socket extension – check
5mm Allan key – check
Table off, I didn’t time it but it was way under 5 minutes.

Front leg taken off, 3mm spacer in place, leg back on.
Table hoisted over to the base, aligned and bolted down. Back leg bolt tapped in, washers and nuts on.
Getting really good at this, maybe just take it off for the fun and time it. (stupid thought!)

Just need to source the right oil for the arms, and then I can test run it.

Thank you for looking
Cheers
Phil

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[Rod]

Nice job - did you pick it up cheap?

I've got a small Hegner - the plastic rocker arm broke, Hegner wanted a stupid figure for a new one, so I made one out of aluminium using the existing bearings.

Rod

 

[Phil]

Nice job - did you pick it up cheap?

Rod

Rod, thanks.
This is the larger one of the two that I bought in early 2013. It was a good price for the two.

I will post the smaller Hegner refurbishment as well.

I've got a small Hegner - the plastic rocker arm broke, Hegner wanted a stupid figure for a new one, so I made one out of aluminium using the existing bearings.

Rod

The Hegner spares are expensive. So when I buy local or from UK the GBP1.0 is multiplied by 20!

Our local supplier keeps a bare minimum of spares.

Cheers
Phil

 

[Phil]

Okay, so let’s move on to 2 years later.


The oil required for the brass bushes in the arms is a K68 way type oil.

I really struggled to get this oil, tried all the oil suppliers and the ones that kept it wanted to sell me a 20L drum for a huge price!

Lots and lots of e-mails later I eventually found a supplier who would give me a sample.
What I ended up with was a 2L plastic container, gratis – free – for nothing!
Took a long time to get that smile off my face.

So now I had the oil but no time as we were busy getting ready to move and I had far more urgent matters to attend to than the Hegner.

Move on another few months’s’s’s’s’s’s ………………….


This is the small (6mm) oil filler hole in the arm. You need a very small dropper to get the oil in.

The best and easiest to use would be a very small syringe, which I managed to get a couple of from a clinic (passed their expiry date).

I then decanted some of the oil into a smaller bottle for easier handling and filling the syringe.

Topped up both the top and bottom arms, and then ran the machine to see if everything ran smoothly.

I stood a glass of water on the table top, there was just a very slight ripple in the water. Not too bad at all, not a shabby job.


There are two small screw in units (grease nipples) with a spring loaded top to enable ease of topping up the oil.

Nice and simple arrangement.

The HWSIAH** used an 8mm flat spanner to tighten it when screwing it into the arm.

O, BIG SH----T, the HWSIAH stripped it and broke it! (I am sure the neighbouring estates could hear me perform)

This is the top piece, the other section was still in the hole, and it can’t be left there.

Ok, so managed to get the other piece out, but you cannot run the saw without the hole protection.

Solution was a small bolt screwed in till I can source a proper replacement.


** Half Wit Stupid Idiot A Hole


The spare part according to Hegner.UK is a Grease Nipple HP3034 and cost GBP3.01
Using the Hegner UK site is a pleasure. You pick the model, see the parts diagram enlarge as you scan over it, get the number and enter it into a field above the diagram.
Up comes the description, part number and cost.

I will first look and see what the local agent has before going into all the PT of buying overseas.



Cheers
Phil