Technical data
Manual Stair Robot SR1750 HE 
Publication: 29-07-04 
AATA INTERNATIONAL B.V. 
Symptom 
Possible course 
Solution 
•  Oil leaks from 
hydraulic ram 
•  Ram packing worn 
• Plunger bent 
•  Replace o-ring and 
back-up ring with repair 
set 
• Hydraulic platform 
does not move up 
•  Under pressure in 
hydraulic system 
•  Remove the wood 
plate of the lifting 
platform and unscrew 
the valve on the oil-
tank pipe; move the 
platform in up position 
by hand and turn valve 
screw tight 
Page 21 of 28 










