Druidic Dabblings and General Twaddle !!

V8Druid

V8Druid

do it as well as you can,but learn to do it better
had considered the same chaps ... the issue is the lift ratio changes as it rises ... found a pic last night in me parts manual - will put it up later(y)
the initial lift is SUBSTANTIAL for maybe the first 50% + of the lift, reducing as it elevates
 
Gecko

Gecko

Well-known member
Yeah, that always makes it fun when selecting gas struts.
Assuming the line from 'the hinge - top pivot - bottom pivot' is about 90 when the cover is closed, then that will be where you get max force.
As the strut extends, the internal volume increases, the gas pressure will drop so the force will reduce (that's the theory at least).

You could always replace the struts with hydraulic rams and run them off an Aux line :ROFLMAO: :ROFLMAO:
 
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V8Druid

V8Druid

do it as well as you can,but learn to do it better
18, 19 & 20 are the struts in the cross section A-A - " part no. 10 001 182 Gasfeder "
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TBH I don't recall them being offset so far out from the hinge point .... but 'tis a while since I last looked at them (or since I've had the cover fully vertical/up)
I can say that from rest, it is a real effort to get it to even start to rise - hence Lil' Jake's assistance is gonna be required, (Pam's gone out for the day with a mate), to get it open enough to get at the isolator, so's I can spin her round cross chassis, to be able to stand beside it and get my back into play

struts aren't labelled at all in this section (E-E) through the length of the engine cover
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I might give the Guys in Hydrema, York.s a call and see what the cost'd be from them (if they have any) but can't imagine it'll be competitive with SGS (and ask 'em what loading they are ;):giggle:, if they've any to eyeball )
 
V8Druid

V8Druid

do it as well as you can,but learn to do it better
Three struts?
18 is the gas springs, 19 & 20 are the end fittings ...
gonna go see if I can make any sense of the virtually obliterated label on the one in a minute (if I still have it on the bench) -
sun is out -
so might see if I can get yon cover in the air -
assuming I can get it up 6" to access the battery isolator, so's I can move it, to get lil' Jake at it :rolleyes:
 
V8Druid

V8Druid

do it as well as you can,but learn to do it better
so --- found the old gas spring on the bench and as far as I can discern it was 1100N, after some very careful examination .. so circa 113Kg thrust (x 2 ) sounds about right - that bonnet is 'KIN heavy
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wrestled it up by hand onto the bonnet stay that I fortunately made for it some time ago (original was missing)
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and had the one remaining spring off ... here's the locations for 'em
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she's getting a bit ripe in places
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.......... and the rear ones
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one I took off was in worse nick than what I already had on the bench - label wise, but still had about 20kgs of thrust .... interestingly they don't close fully as this one had about 2" of scabby-ish rod protruding, with maybe an inch or so's travel left 'til yon cover was fully closed - would explain its demise too - might put the new ones on t'other way up to keep the damp off them ;)
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it's possible the rear one had been replaced at some time as it's in much better general condition, aside from being completely ferked :ROFLMAO:
I'd spun her round to make life 100% easier to work on
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and'd found a lot of the sound deadening foam in a bad way and dropping onto the motor .... so the burgered bits had to go - too great a fire risk for my liking as it's pretty tight in the engine bay
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got the trusty Goblin out and gave everywhere a good hoovering out - have had it donkey's and it's very handy for little jobs like this - small enough to tuck in anywhere or hang on yer shoulder if need be - no bag and sucks pretty well
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so while it was cross chassis, checked all the fluids , then spun it around to give the cab a good suck out - not been done in a while
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so job for tomorrow - order some bonnet lifting devices from SGS ... will be amazing not to have to fight the damned thing up in the air:cool:(y)
 
V8Druid

V8Druid

do it as well as you can,but learn to do it better
forgot to say that the originals were Hahn gas springs ... found their 'calculator page' and stuck their product number in .... nada/ zero / no longer available :rolleyes:
 
V8Druid

V8Druid

do it as well as you can,but learn to do it better
Also forgot to say ............ been a beautiful day here - shirt sleeves all day and wall to wall blue sky :giggle::love::cool:(y)(y)(y)
 
Gecko

Gecko

Well-known member
might put the new ones on t'other way up to keep the damp off them
Do this. They should be mounted with the rod lower than the cylinder so the seals see some oil.

The Hahn catalogue makes a good read - lots of good info in there

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found their 'calculator page' and stuck their product number in .... nada/ zero / no longer available
It may be an OEM number rather than 'retail'

.. it looks like the G14-28 is your strut.
So your strut will have a 40% pressure increase when fully compressed (maximum lifting force when the lid is closed)

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V8Druid

V8Druid

do it as well as you can,but learn to do it better
Do this. They should be mounted with the rod lower than the cylinder so the seals see some oil.

The Hahn catalogue makes a good read - lots of good info in there

View attachment 80238

View attachment 80239

It may be an OEM number rather than 'retail'

.. it looks like the G14-28 is your strut.
So your strut will have a 40% pressure increase when fully compressed (maximum lifting force when the lid is closed)

View attachment 80240

sadly 29mm too long in the closed position at 357mm :( 328mm max. is the target :rolleyes: (to match existing)
 
Gecko

Gecko

Well-known member
I haven't found a listing for their standard listings - first they have to make it, then you have to find someone to sell it to you! The one you can buy - wins.

While your pics are up, that's not an open port on you air intake is it?
Your flap valve is missing on the air cleaner too, but you you probably don't see too much dust in Wales :ROFLMAO:

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V8Druid

V8Druid

do it as well as you can,but learn to do it better
I haven't found a listing for their standard listings - first they have to make it, then you have to find someone to sell it to you! The one you can buy - wins. (y)(y)(y)(y)

While your pics are up, that's not an open port on you air intake is it?
Your flap valve is missing on the air cleaner too, but you you probably don't see too much dust in Wales :ROFLMAO:

View attachment 80251
absolutely :giggle:

no it's not been cut out / it's still blanked

I know ........ but as said :ROFLMAO::ROFLMAO:
 
R

Rob65

Well-known member
Druid, have you considered replacing the struts with some 12v linear actuators?

This is my plan for the cab on my Bobcat skidstear.
 
V8Druid

V8Druid

do it as well as you can,but learn to do it better
Druid, have you considered replacing the struts with some 12v linear actuators?

This is my plan for the cab on my Bobcat skidstear.
it has crossed my mind Rob, but it's whether I have the space for them, plus my isolator is under the bonnet and I like to leave her electrically dead.. 1100N is also quite an actuator
Funnily enough Amazon sent me one of those " we've found something that might interest you " emails the other day referencing some linear actuators :oops:
 
S

Smiffy

Well-known member
I haven't read every post so don't know if it has been breeched already. But when I was looking for new gas struts for my l200 sgs did adjustable ones that you could let gas out of to reduce the strength
 
V8Druid

V8Druid

do it as well as you can,but learn to do it better
I haven't read every post so don't know if it has been breeched already. But when I was looking for new gas struts for my l200 sgs did adjustable ones that you could let gas out of to reduce the strength
I had email contact with one of SGS's guys a while ago and he too mentioned 'adjustable' units, but didn't get any further with it at that time.
Pretty sure that the 1100N units'll do the job though and will get on and order some shortly
would imagine it'd be all too easy to let too much out of an adjustable jobbie :rolleyes:
 
V8Druid

V8Druid

do it as well as you can,but learn to do it better
Druid, have you considered replacing the struts with some 12v linear actuators?

This is my plan for the cab on my Bobcat skidstear.
as said - had considered actuators and have found some that may fit the bill - but only 12volts - Drema is 24V and the battery isolator is under the bonnet, which I need to have open by at least 6" to access it and I like it electrically 'dead' when sitting about???? :unsure:
mounts may also be an issue to get everything aligning .. fitting balls to the ends of them looks to be 'fun' :unsure:
trying to assess everything with the bonnet closed is nigh on impossible, as you can't get access, or even a line of sight :( ...... and it is 'KIN heavy for fannying about with :rolleyes:
would also need to place controls somewhere I could operate them simultaneously with opening the bonnet lock - double acting 6 x 2 key switch perhaps adjacent to the bonnet lock
money wise there's not a lot in it - hassle wise, Hmmmm :rolleyes::unsure:


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Gecko

Gecko

Well-known member
All things considered, the added complexity doesn't sound worth the effort. If there were a need to operate it remotely, then they'd be great, but ...
Gas struts will (by demonstration) do a good job and they will drop straight in.
 
V8Druid

V8Druid

do it as well as you can,but learn to do it better
All things considered, the added complexity doesn't sound worth the effort. If there were a need to operate it remotely, then they'd be great, but ...
Gas struts will (by demonstration) do a good job and they will drop straight in.
exactly - one could replace one with an actuator and still achieve the 'remote'/press button op. sharing the load with the second gas strut, but TBA CIBA for the effort ??
the rear one would be the easiest proposition with the most clearance (and room for modified bracketry, looking at the pix) .. the front one is very tight for space
could even tandem an actuator up with the rear one if one was feeling really lazy :giggle::LOL:
 
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