Linde (& Baker) E15S:
Hydraulic oil foaming up on lift

I replaced the hydraulic motor & pump, also replaced the main hose coming from the tank & I also have replaced the o-ring on top of the pump for the suction flange. I am still getting foam when I lift the forks up & down, foams out over the breather, not sure where to go from here.
  • Posted 29 Jan 2010 05:28
  • Discussion started by Duke
  • Michigan, United States
Showing items 1 - 6 of 6 results.
Hi Duke, check the O ring that seals the pump to the motor, a few years ago i had the same problem and found the O ring damaged and thus drawing air into the system. Best regards Ian
  • Posted 29 Jan 2010 15:11
  • Reply by ian_p
  • Victoria, Australia
Hi Duke
It sounds like you have cavitation this is caused by air being sucked into the system before the pump, you will need to check again your suction pipes and the correct fitting of the suction filter.
Check the filter is located correctly. The filter should be pushed into the neck then put into the tank.

Also the oil should really be grade 32 for the electric Linde range.

cheers herald.
  • Posted 29 Jan 2010 08:42
  • Modified 29 Jan 2010 08:45 by poster
  • Reply by Herald
  • lancashire, United Kingdom
using iso grade 68 oil, pump isn't making a wierd sound, the suction filter is in place, I will double check the plastic tube & filter to be sure though, oil levelseems to be just right when the mast is all the way up there is just enough oil so it doesn't *** any air.
  • Posted 29 Jan 2010 06:19
  • Reply by Duke
  • Michigan, United States
hmmm, havent experienced this yet. hints:
Did you use the right oil?
Does the pump make strange sound?
Is the suction filter in place?
Is the plastic tube (filter housing) intact?
Maybe the oil level is too high? The tank is demensioned for the highest mast possible. If you have a lower mast you dont have to fill it all the way, only just enough for the mast to go up.
  • Posted 29 Jan 2010 06:11
  • Reply by frits_f
  • utrechte, Netherlands
Yes I have replaced the filter & also completly drain the hydraulic oil & replaced
  • Posted 29 Jan 2010 05:50
  • Reply by Duke
  • Michigan, United States
Did you replace oil and filters? Maybe there is something in the oil?
  • Posted 29 Jan 2010 05:47
  • Reply by frits_f
  • utrechte, Netherlands

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