Could E&P suspension Freeze?

haganap

LIFE MEMBER
Dec 5, 2007
12,026
18,360
planet earth
Funster No
974
MH
N & B Flair.
Exp
I'm an oldbie
sounds a daft question I know but one worth asking.

Obviously when we are skiing we can hit some quite extreme nightly temps and it just got me thinking of the possibility of being stuck in the air without being able to get the self levelers down.

any thoughts/experience
 
Jul 29, 2013
6,907
9,190
Salisbury
Funster No
27,215
MH
Hymer B678DL A class
Exp
since 2011
Never heard of hydraulic oil freezing but someone will prove me wrong I expect.
 

MikeD

Free Member
Dec 21, 2011
3,939
3,685
London
Funster No
19,230
MH
IH PVC
Exp
Since 2012
Never had self levellers but I suppose the oil could get a bit viscous with the cold and overcome any spring assistance to raise them (if not driven by oil pressure).

Subscribers  do not see these advertisements

 

funflair

LIFE MEMBER
Dec 11, 2013
15,239
20,144
Guisborough
Funster No
29,351
MH
MORELO palace
Exp
since 2012
Shouldn't be a problem Paul, it might slow down a bit if the oil thickens but my money is you won't even notice, might freeze to the ground so just a bit of plastic or bit of board under the feet would stop that.

Martin
 

funflair

LIFE MEMBER
Dec 11, 2013
15,239
20,144
Guisborough
Funster No
29,351
MH
MORELO palace
Exp
since 2012
Never had self levellers but I suppose the oil could get a bit viscous with the cold and overcome any spring assistance to raise them (if not driven by oil pressure).
They are pumped both ways, less power on the return I imagine though.

Martin
 

PeteH

Free Member
Nov 22, 2007
6,862
9,027
East Riding of Yorkshire
Funster No
900
MH
Rapido, 999M.
Exp
18+yrs plus 25+Towing
I had spring return (kick up) ones on the Winnebago, we saw 0deg F (-17C) at altitude several times and not a problem with using the levellers. So it is unlikely you will experience issues, something under the pads though gives 2 stages of separation.

Subscribers  do not see these advertisements

 
Nov 18, 2011
10,808
29,972
Funster No
18,938
no bud it wont freeze unless the oil becomes contaminated it will have a slight increes in viscosity but not any thing to worry abut
bill
 

Armytwowheels

LIFE MEMBER
Aug 10, 2012
6,167
12,488
Market Harborough
Funster No
22,346
MH
Carthago S Plus - Iveco
Exp
Since 2011
Paul, we have arrived at Montgenèvre and there are more vans with E&P type levellers than not. It is due to go down to -7c during the night, I will let you know if we see anyone having problems.

By the way the snow is amazing and loads of it.
 

Theonlysue

LIFE MEMBER
Sep 14, 2009
5,915
6,884
Essex
Funster No
8,456
MH
Hymer ML-T 630
Exp
Not long enough!
I was minus15 in germany last year. No problem with levellers.
But the lock on the grab handle froze so I couldn't push it back to drive off.lol

Subscribers  do not see these advertisements

 

DBK

LIFE MEMBER
Jan 9, 2013
16,346
38,343
Plympton, Devon
Funster No
24,219
MH
PVC, Murvi Morocco
Exp
2013
Paul, we have arrived at Montgenèvre and there are more vans with E&P type levelledrs than not. It is due to go down to -7c during the night, I will let you know if we see anyone having problems.

By the way the snow is amazing and loads of it.
No snow when we were there. :)

DSC_0258.JPG
 
Oct 2, 2008
3,958
6,373
J10 M40
Funster No
4,247
MH
Bucher Duro 6x6 motorhome
Exp
since 1968
To give you some idea auto trans oil freezes at -67F
Yakutz coldest place in Siberia avgs about -40F in winter
 

DBK

LIFE MEMBER
Jan 9, 2013
16,346
38,343
Plympton, Devon
Funster No
24,219
MH
PVC, Murvi Morocco
Exp
2013
sounds a daft question I know but one worth asking.

Obviously when we are skiing we can hit some quite extreme nightly temps and it just got me thinking of the possibility of being stuck in the air without being able to get the self levelers down.

any thoughts/experience
There are two answers.

Either don't worry about the problem and keep skiing until the snow melts.

Or work out if the fluid is hydroscopic or hydrophobic. If the latter no problem but if the former the instructions will recommend regular changes of the fluid. :)

Subscribers  do not see these advertisements

 
Jul 24, 2009
3,989
57,795
South Yorkshire
Funster No
7,631
MH
Coachbuilt
Exp
Since 1999
Unless things have changed since i owned an hydraulic engineering company 10 years ago it won't freeze. I'm assuming E&P are using mineral oil of about 32cst. This info should be in the users manual. The biggest problem for fluids is high temp at around 150f and there is no way you will get anywhere near that in the short time that your jacks will be operating.
Just as an aside if they were using water based FLP (flame retardent) which they used to have in the mining industry it would be a different matter. Because of the danger of an underground fire the chocks etc used a 95/5 mixture, the 95 being water, the 5 being oil. The cutting machines used 60/40 because they needed more lubrication properties.
 
Top