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 |
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| Hydraulic fluids (Specification 343.0) | Sheet 343.0 | Hydraulic fluids (Specification 343.0). MB 343.0 Hydraulikol A 000 989 91 03/Castrol Vitamol ZH-M | |
| Fig 3 | |||
| 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 |