Check/Correct Fluid Level Of Hydraulic Unit - AR77.37-P-3501W
MODEL 172.4
| Checking | |||
| Risk of injury to skin or eyes caused by hydraulic fluid spraying out under high pressure. Risk of poisoning caused by swallowing hydraulic fluid | Depressurize the hydraulic system completely before starting any work on the system. Wear protective clothing and safety glasses. | AS00.00-Z-0013-01A | |
| 1 | Open Vario roof | ||
| 2 | Remove crossmember cover (1) from Vario roof crossmember until Vario roof control hydraulic unit (A7/5) is accessible | AR77.37-P-3500W | |
| 3 | Fold up insulating mat (2) and secure against folding down | ||
| 4 | Read oil level off of oil level marking (A) on oil reservoir of Vario roof control hydraulic unit (A7/5) | ||
| Correct | |||
| 5 | Unhook Vario roof control hydraulic unit (A7/5) from rubber mounts (3) and turn until filling screw (4) can be unscrewed so that hydraulic oil cannot flow out of the filler opening on the oil reservoir | ||
| 6 | Screw in filler screw (4) | ||
| 7 | Fill fluid reservoir of Vario roof actuation hydraulic unit (A7/5) with filling syringe |
||
| Hydraulic fluids (Specification 343.0) | Specification 343.0 |
BB00.40-P-0343-00A | |
| Fig 1 | |||
| 8 | Tighten filler screw (4) | *BA77.37-P-1005-01A | |
| 9 | Fasten Vario roof control hydraulic unit (A7/5) on rubber mounts (3) | ||
| 10 | Fold down insulating mat (2) and hook into Vario roof crossmember | ||
| 11 | Install crossmember cover (1) | AR77.37-P-3500W | |
| 12 | Close Vario roof |
SOFT TOP HYDRAULIC COMPONENTS
| Number | Designation | Model 172 | |
|---|---|---|---|
| BA77.37-P-1005-01A | Filler screw to hydraulic unit | Nm | 1 |