8.5. Hydraulics
8.5.1. Slewing housing: checking the oil level/oil change
Measuring stick [if fitted]
• Checking the oil level in slewing housing
1. Check if the oil level on the measuring stick is
between the maximum and minimum levels.
2. If the oil level is below the minimum level: Top up
through the hole for the measuring stick with
transmission oil of type MIL-L-2105C or API-GL-5,
viscosity SAE-80W-90, cleanliness NAS 1638:8.
• Changing oil in the slewing housing
Change the oil in the slewing house yearly!
1. Use a container with sufficient capacity to receive
the oil. Drain off the oil through the drain plug.
2. Refill through the hole for the measuring stick,
with transmission oil of type MIL-L-2105C or API-
GL-5, viscosity SAE-80W-90, cleanliness NAS
1638:8.
3. Slew the crane to the end positions three times.
4. Check the oil level. If necessary top up again.
Measuring level glass [if fitted]
• Checking the oil level in slewing housing
1. Check if the oil level in the level glass (1) is
between the maximum and minimum levels.
2. If the oil level is below the minimum level: Remove
the plug (3).
3. Top up through the filling hole (3) with
transmission oil of type MIL-L-2105C or API-GL-5,
viscosity SAE-80W-90, cleanliness NAS 1638:8.
• Changing oil in the slewing housing
Change the oil in the slewing house yearly!
1. Remove the hose coupling (2) from the level
glass.
2. Remove the plug (3).
3. Use a container with sufficient capacity to receive
the oil. Drain off the oil through the filling hose (2).
4. Attach the hose coupling (2) to the level glass.
5. Refill through the filling hole (3), with transmission oil of type MIL-L-2105C or API-GL-5,
viscosity SAE-80W-90, cleanliness NAS 1638:8.
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Maintenance and Service
96
HIAB K-HiPro 285-425 X4