OPERATING INSTRUCTIONS RH 400

Inspection and servicing

Slewing Gearbox

Changing the gearbox oil

2732099

Read and observe: "Inspection and servicing - Safety instructions.

Shut off the engines

The gearbox housings may be hot, too.

Secure the machine as described in the "Securing the machine" section.

Protect the skin from contact with gearbox oil. Skin contact with cooling liquid is a potential health hazard.

Wear protective gloves and firm working clothing.

Draining off oil

Prepare a collecting recipient for used oil. Choose the required capacity in accordance with the "Refilling quantities - Oil" table.

Gearbox - Checking the oil level / Topping up with oil

Park the machine as described under "Securing the machine".

Check the oil level visually at expansion tanks (6, Fig. 3-107:). The expansion tanks must be filled with gearbox oil up to abt. 1/3

The oil level is visible from outside (light/dark area).

Hose (5, Fig. 3-107:and Fig. 3-108:) connects the gearbox (3, Fig. 3-108:) with the expansion tank (6, Fig. 3-107:).

Unscrew protective cap from the automatic drain valve

Attach hose (8, Fig. 3-108:) to drain valve (7) and drain off oil completely. Unscrewing cover (8, Fig. 3-107:) facilitates draining off used oil.

The hose line and its use are described in the "hose line for oil and cooling liquid change" section.

Operating Instructions

Inspection and servicing

Drain valve (7, Fig. 3-109:) is accessible from the undercarriage.

Remove hose. The oil drain valve closes automatically.

Screw on protective cap.

Gearbox venting

The gearbox is vented through cap (8, Fig. 3-110:).

Slewing gear neck

Grease bearing through lubricating nipple (11, Fig. 3-111:

Fill in grease until grease emerges at the points marked with the arrow.

Filling in new oil / Topping up

Unscrew cap (8, Fig. 3-110:) and fill in new oil through expansion tank (6). The expansion tank (6) must be filled with gearbox oil up to abt. 1/3