OPERATING INSTRUCTIONS RH 90 C E

Inspection and servicing

Pump Transfer Gearbox

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

Switch off the electric motor.

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.

Checking the gearbox oil level / Topping up with oil

Check oil level only when gearbox is cold. Heated oil may result in inaccurate measurements.

Unscrew screw plug (10, Fig. 3-70:). The level should reach the lower edge of the check hole; top up if necessary.

Drawing off oil

Place a suitable receptacle for used oil under the drain plug. The required receptacle capacity is specified in the "Refilling quantities - Oil" table.

Unscrew screw plug (11, Fig. 3-70:) and drain off oil.

Slackening the screw plug (14) facilitates oil drainage.^

Topping up oil

Fill in oil through the filler plug (14, Fig. 3-70:). Add new oil until it emerges from the check hole of the screw plug (10).

Gearbox venting

The gearbox is vented through the breather valve (6, Fig. 3-70:).

Clean breather valve (6) in accordance with servicing plan.

Unscrew breather filter (6), clean with white spirit or paraffin oil and blow dry with compressed air.

Screw breather filter (6) back in place.