DIESEL ENGINE

Checking The Engine Oil Level

Park the machine on firm, level ground to check the engine oil level. Turn the engine off and wait a few minutes for the oil to collect in the oil pan.

The oil must be between the minimum and maximum mark on the dipstick 1 (fig. 1).

Caution

The engine oil is very hot at or near operating temperature. Avoid contact with hot oil and components containing oil, since it could cause severe burns.

Changing The Engine Oil

To drain the oil :

To change the oil, bring the engine to operating temperature. Open the cover on the uppercarriage below the Diesel engine. Attach the oil drain hose (fig. 2, pos. 6) to the drain 7 and drain the oil into an appropriate container.

Danger

For safety reasons, with your machine fitted with a high rise undercarriage, you must employ a lifting platform to have access to this drain fitting. (Only authorized persons are allowed to drive a lifting platform).

Preferably employ a drain hose long enough to collect the worn oil into a container standing at ground level below the excavator.

If you attempt to drain the oil into a container placed on the lifting platform, you must in any case previously make sure that the platform is suitable (lifting capacity and stability), considering the container filled with the expected oil quantity to be drained.

To replace the oil filter element (fig. 3 ) : Remove the filter element. Clean the sealing surface on the filter mount.

Caution

Be careful when removing the filter cartridge to avoid contact with hot oil .

Lightly lubricate the seal with oil and tighten the filter element, using both hands.

Add oil (fig. 4) to the upper mark of the dipstick .

See Maintenance and lubrication chart for oil quality, oil quantities and oil change intervals.

Checking The Coolant Level Caution

At or near operating temperature, the engine coolant is hot and under pressure. Avoid contact with components containing coolant, since it could cause severe burns. Check coolant level only after the cap of filler neck 6 is cool enough to touch.

To check the coolant level, turn the cap 6 slowly to relieve pressure.

When the engine is very hot first let the pressure escape by slowly turning the pressure relief valveradiator cap 7 (fig. 10) before removing cap 6.

. When the coolant is cold, the coolant level should reach the top of the filler neck under the cap 6 of the radiator (fig. 5).

Antifreeze And Corrosion Protection Of The Coolant

. Add the proper antifreeze mixture to the cooling system on a year round basis, not just in the cold season.

. The excavator is delivered from the factory with a cooling system protection to -35° C /-31° F (this corresponds to about 50% antifreeze).

. For the cooling system capacity : see lubrication chart.

. Also the correct concentration of corrosion inhibitors inside the coolant must be maintained permanently.

. The concentration has to be checked after each important coolant make up, and at regular intervals if smaller coolant quantities are refilled frequently.

. If necessary, anticorrosion additives must be added to the cooling system, refer to page 5.6.

. If there are no significant coolant leakages, replacing the water filter (fig. 11, pos. 10) at regular intervals is sufficient to maintain the correct concentration of anticorrosive agent.

Changing The Coolant

. The coolant in the cooling system has to be changed at least once every two years.

. Preferably keep the valves for the cab heating circuit closed when changing the coolant.

. If the coolant in the heating circuit has to be drained too, the heater core must be vented correctly when refilling the circuit. The water flow through the cab heater is possible only with ignition key in contact position. To drain coolant :

. Unscrew the cover of the drain valve 1. Attach the drain hose to the valve 1 and drain the coolant into an appropriate container.

Danger

For safety reasons, with your machine fitted with a high rise undercarriage, you must employ a lifting platform to have access to this drain fitting. (Only authorized persons are allowed to drive a lifting platform).

. Remove the drain plug 2 on the engine oil cooler.

Changing The Oil In The Splitterbox

Fig. 13, pos. 4 shows the oil filler and bleeder screw of the splitter box and pos. 5 shows the dipstick to check the oil level.

To Check The Oil Level

Check the oil level a few minutes after turning off the engine.

To Drain The Oil

Drain the oil when the oil is at operating temperature

To drain, remove the cap on the drain 7 (fig. 14), install drain hose 6 and drain the oil into an appropriate container.

Danger

For safety reasons, with your machine fitted with a high rise undercarriage, you must employ a lifting platform to have access to this drain fitting. (Only authorized persons are allowed to drive a lifting platform).

Preferably employ a drain hose long enough to collect the worn oil into a container standing at ground level below the excavator.

If you attempt to drain the oil into a container placed on the lifting platform, you must in any case previously make sure that the platform is suitable (lifting capacity and stability), considering the container filled with the expected oil quantity to be drained.

To Add Oil

Add oil to the oil level mark on the dipstick, run the engine for a few minutes, stop it and check again the oil level

See lubrication chart for oil quantities and specifications. See maintenance chart for oil change intervals.

Changing The Oil In The Travel Gear

If possible, drain the oil when the oil is at operating temperature.

Before draining or adding oil, move the machine until one of three plugs is straight below the centre axle of the gear (fig. 17, pos. 2)

To Drain The Oil

Remove the lower plug 2 and an upper plug 1, drain the oil into a suitable container.

To Add Oil

Reinstall plug 2 and add oil until it drains from bore 1, then reinstall the plug 1.

See lubrication charts for quantities and specifications. See maintenance chart for oil change intervals.

Changing The Oil In The Swing Gear

If possible, drain the oil when the oil is at operating temperature.

Fig. 20 shows:

1 : Oil drain valve

2 : Dipstick

3 : Oil filler tube

4 : Oil filler cover / breather cover

TO DRAIN THE OIL

Remove the protective plate 6

Remove the cover 4, unscrew the plug of the drain valve 1 through the opening in the front sheet of the uppercarriage. Attach the oil drain hose 5 to the valve 1 and drain the oil into an appropriate container. Remove the drain hose and reinstall the plug of the drain valve 1.

Reinstall the protective plate 6.

Danger

For safety reasons, with your machine fitted with a high rise undercarriage, you must employ a lifting platform to have access to this drain fitting. (Only authorized persons are allowed to drive a lifting platform).

Preferably employ a drain hose long enough to collect the worn oil into a container standing at ground level below the excavator.

If you attempt to drain the oil into a container placed on the lifting platform, you must in any case previously make sure that the platform is suitable (lifting capacity and stability), considering the container filled with the expected oil quantity to be drained.

To Add Oil

Remove the cover 4. Add oil via the filler tube 3 until the level reaches the upper mark on the dipstick 2. Reinstall the cover 4.

See lubrication charts for quantities and specifications. See maintenance chart for oil change intervals

Oil In The Hydraulic System

. When checking the oil level or adding oil, (fig. 21) : Park the machine on level ground, rest the attachments on the ground with stick and tilt cylinders fully extended and, if applying, with bottom dump bucket closed. turn the engine off.

Check Hydraulic Oil Level

. In this position the oil level may not drop below middle level on the sight gauge (fig. 22) or oil must be added to the tank until reaching this level.

. Level "MAXI" shows the maximum oil level when all cylinders are retracted.

. Level "MINI" shows the minimum oil level when all cylinders are all the way extended.

To Drain And To Add Oil To The Hydraulic Tank Caution

Before draining the oil or opening the hydraulic tank, you always must first unscrew the breather filter 4 one turn to relieve tank pressure.

. The hydraulic system should always be refilled or drained using a filler pump

. To drain oil:

. Remove the cover of the return filter 1 or the cover 2.

. The oil must be drained via the two drain valves 5 and 6 in the bottom of the tank (fig. 27).

. Attach a drain hose to the valves and suck off or let flow out the oil.

Danger

For safety reasons, with your machine fitted with a high rise undercarriage, you must employ a lifting platform to have access to this drain fitting. (Only authorized persons are allowed to drive a lifting platform). Employ a drain hose long enough to collect the worn oil into a container standing at ground level below the excavator.

. Adding oil to the tank:

. Unscrew the breather filter 4 one turn.

. Add the oil via the filter cover 1 or via the cover 2, until the oil level reaches middle level on the sight gauge..

. Close the breather filter.

. Add some more oil to fill the tank up to the top. If refilling through the opening of the filter cover 1, pay attention to refill also the return oil compartment R (fig. 26) around the filter centring tube 7 completely.

. Reinstall the filter cover 1 or the cover 2.

Lubrication Of Attachment Bearing Points

All the lubrication points of the working attachment of the machine are greased automatically and at regular intervals while working via the centralized lubricating system, see on page 5.21.