See the appended instruction manual of the Caterpillar engine for further engine maintenance instructions.
8.3.1 Engine oil
Oil quantities and qualities are provided in the separate Lubricant recommendations.
8.3.1.1 Checking the oil level
The oil level is checked from the dipstick on the side of the engine. The level must be checked daily.
The oil level must be between the marks ADD and FULL.
8.3.1.2 Changing the oil
Change the engine oil every 200-250 operating hours. Oil must be drained immediately after driving, when the engine is hot. The drain valve location is indicated in the figure 8-14 (pos. 1). Add new oil from the filler opening on the side of the engine.
8.3.1.3 Replacing the engine oil filter The filter must be replaced in conjunction with every oil change:
1. Before removing the filter, clean it carefully from the outside.
2. Remove the filter with a wrench.
3. Use oil to lubricate the rubber seal of the new filter. Screw the filter element in place by hand until the seal touches the sealing face. Then tighten the filter again 1/2 - 3/4 turns. Be careful not to overtighten the filter.
4. Add new oil to the engine. Start the engine and check that there are no oil leaks.
8.3.2 Engine coolant
Change the engine coolant when needed. The drain valve location is indicated in the figure 8-14 (pos. 2).
Figure 8-14 Checking the oil level
Figure 8-15 Drain the engine oil
Figure 8-16 Replace the oil filter
ADDFULL
1 2
8.3.3 Air filter
The operating life of the engine air filter depends significantly on the operating conditions. In extremely dusty conditions, you may need to replace the filter element as often as several times a week. If the conditions are less dusty, the filter element may remain operational for a significantly longer period.
Metso recommends that the filter element (1) is replaced every time the filter clogging indicator indicates the filter is clogged. The safety element of the filter (2) must be replaced when every third replacement takes place. When opening the filter, check the cleanliness of the seals and their mating surfaces.
If the filter element (1) is cleaned instead of replaced, notice the following:
• Filter element may be cleaned extremely carefully maximum of three times, after which it must be replaced.
• Cleaned filter element will never be as good as the new one.
• The safety filter can not be cleaned. Safety element is replaced when every third cleaning or replacement of the filter element takes place.
• When cleaning the filter, do not knock the filter anywhere or hit it with anything. Just shake it in the air.
• If the compressed air is used for the cleaning, the pressure must not be more than 3 bars.
Keep the cleaning pistol at least 50 mm off the filter element when blowing.
• Be careful not to let any dust enter the clean side of the filter element.
• Damaged filter element may cause a engine breakdown. Replace the damaged filter element immediately.
• Do not use any water or solvent to clean the filter element.
If there is a vacuator valve in the filter element, check the operation of the valve regularly (4;
Figure 8-17). Replace if necessary.
Condition of the intake channels and connections must be checked regularly. Faultless condition of these ensures the purity of the intake air.
If the machine is equipped with the pre-cleaning system it must be inspected regularly. Visually check that the vanes in the tubes and the protective screen on hood assembly are free of dust. Use the compressed air to remove the dust. Do not aim the airstream directly into tubes.
Check the condition of the exhaust ejector scavenge hose. Replace if necessary.
NOTE: Do not open the air filter housing when the engine is running!
NOTE: A clogged air filter reduces the engine capacity, increases fuel
consumption and harmful exhaust gases.
NOTE: In very dusty conditions, observe the condition of the filter more often than usual.
NOTE: When checking, cleaning or replacing the elements, take extra precautions not to let any dust enter the intake channel.
The clogging indicator (3) is located in the filter housing.
Figure 8-17 Engine intake air filter
The condition of the indicator must be observed every 8h of operation.
When replacing the air filter, proceed as follows 1. Undo the filter housing latches to remove
the cover (fig. 8.17)
Figure 8-18 Remove the cover
2. Draw the primary cartridge out from it's place (fig. 8.18). If needed draw the safety cartridge out from it's place .
Figure 8-19 Undo the primary cartridge
3
1 2
4
3. Install the new cartridges on their place (fig. 8.19).
Figure 8-20 Install the new cartridges
4. Close the air filter housing cover correctly on it's place and make sure that all latches are properly closed (fig. 8.20).
Figure 8-21 Close the housing cover NOTE: Always check that the replacement filter size is correct. If the replacement filter is shorter than the original one, it might cause a serious engine damage.
8.3.4 Fuel system
8.3.4.1 Draining the fuel water separator 1. Open the drain valve (1). The drain valve is
a self-bleeding valve. Collect the draining water in a suitable container. Dispose of the drained water in accordance with the local laws and regulations.
2. Close the drain valve.
8.3.4.2 Replacing the pre-fuel filter The pre-filter must be replaced every 200-250 hours, or monthly.
1. Shut down the engine
2. Close the feed valve of the fuel tank