SL/R129: hydraulic cylinders for soft top
SPONSOR
Joined: Sep 2011
Posts: 475
Likes: 41
From: On the beautiful Oregon Coast
03 SL Kleemann, 97 SL320 pano top, 95 Lorinser E320 Cabrio, Ferrari 360, Tesla X
Accessing the various hydraulic top cylinders
Stephanie,
welcome to the forum! Your 1991 has twelve (12) cylinders for the soft top actuation and latching. Here is a schematic of what and where they are:
What is the problem you are trying to solve? Are you seeing a leak, or is the top not moving?
Here are the DIY instructions for access to the various cylinders in your SL:
1298001672 Top locking cylinders aka A 129 800 16 72: http://www.tophydraulicsinc.com/R129...%20Removal.pdf
1298000072 Tonneau cover locking cylinder aka A 129 800 00 72: http://www.tophydraulicsinc.com/R129...0Cylinders.pdf
1298002072 Tonneau cover lift cylinders aka A 129 800 20 72: http://www.tophydraulicsinc.com/R129...0Cylinders.pdf
1298002172 Rear locking cylinders aka A 129 800 21 72: http://www.tophydraulicsinc.com/R129...%20Removal.pdf
1298001772 and 1248000272 Bow extension cylinders aka A129 800 17 72 and A124 800 02 72: http://www.tophydraulicsinc.com/R129...%20Removal.pdf
1298000272 Main lift/drive cylinders aka A 129 800 02 72: http://www.tophydraulicsinc.com/R129...%20Removal.pdf
Outside of the rod seals showing visible leaks to the outside, most of these cylinders have piston seals that swell up and/or become brittle with age, which would make it extremely hard to move the cylinders by hand, or which can cause internal bypasses. There are special seals required in either case.
Klaus
www.tophydraulicsinc.com
welcome to the forum! Your 1991 has twelve (12) cylinders for the soft top actuation and latching. Here is a schematic of what and where they are:
What is the problem you are trying to solve? Are you seeing a leak, or is the top not moving?
Here are the DIY instructions for access to the various cylinders in your SL:
1298001672 Top locking cylinders aka A 129 800 16 72: http://www.tophydraulicsinc.com/R129...%20Removal.pdf
1298000072 Tonneau cover locking cylinder aka A 129 800 00 72: http://www.tophydraulicsinc.com/R129...0Cylinders.pdf
1298002072 Tonneau cover lift cylinders aka A 129 800 20 72: http://www.tophydraulicsinc.com/R129...0Cylinders.pdf
1298002172 Rear locking cylinders aka A 129 800 21 72: http://www.tophydraulicsinc.com/R129...%20Removal.pdf
1298001772 and 1248000272 Bow extension cylinders aka A129 800 17 72 and A124 800 02 72: http://www.tophydraulicsinc.com/R129...%20Removal.pdf
1298000272 Main lift/drive cylinders aka A 129 800 02 72: http://www.tophydraulicsinc.com/R129...%20Removal.pdf
Outside of the rod seals showing visible leaks to the outside, most of these cylinders have piston seals that swell up and/or become brittle with age, which would make it extremely hard to move the cylinders by hand, or which can cause internal bypasses. There are special seals required in either case.
Klaus
www.tophydraulicsinc.com
