OPERATING INSTRUCTIONS Inspection and servicing Gearbox venting
Pre-chamber
The gearbox is vented through breather valve (2, Fig. 3-104:).
Check oil level
Clean breather valve (2) in accordance with the servicing plan. Ü Unscrew breather filter (2), clean with white spirit or paraffin oil and blow dry with compressed air.
Check the oil level in the pre-chambers regulary.
Ü Unscrew plugs (4, Fig. 3-105: and Fig. 3-106:).
Ü Screw breather filter (2) back in place.
Fig. 3-105:
Fig. 3-104:
The oil level should reach up to the lower edge of the opening. Top up with oil if required. Ü Unscrew breather valve (3) and fill in oil through the opening until it flows out of the opening of plug (4). Ü Screw breather valve (3) and plug (4) back in place.
Fig. 3-106:
If oil leaks out of the breather valves (3), the externally sealing of the respective hydraulic pumps must be checked.
3-88
BA RH400(3 659 450.00)-EN