MAN205-0195042EN Rev. A Aug. 2011
Page 110 of 137 pages
9.14 Servicing the Vertical Door Operation Cylinder
The cylinder is a hydro-pneumatic unit, consisting of a pneumatic power section and a
hydraulic control section. The hydraulic control section consists of hydraulic oil.
Checking Oil Quantity
When the door is fully open (the operating piston is completely inside the cylinder),
check if the reference notch on the oil tank stick gauge (1) is visible.
If not visible, top up oil (SINCOPRIME 350) through the oil refilling connection (5) with oil
hand pump connected by 1/8" thread connection, until the notch is aligned with the oil
tank cap.
Door Speed Movement Adjustment
This adjustment is to be performed by an authorized technician only!
When the door speed movement needs to be adjusted, it can be done by the "door
speed adjustment valve" at the bottom of the oil tank (6).
Legend
1. Oil tank stick gauge
2. Oil tank
3. Door operating piston
4. Lock valve
5. Oil refilling connection
6. Door speed
adjustment valve
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