Servicing the fuel system. Wacker Neuson WL36
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Fig. 83
Location of the engine oil filter
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10.7.3 Servicing the fuel system
WARNING
Personal injury hazard.
Moving engine components can crush or cut. Hot engine components can cause serious burns.
► Do not open the engine enclosure until the engine stops.
► Do not touch engine components until they have cooled.
Fire/explosion hazard.
Fuel and fumes can explode or catch fire.
► Do not smoke or change the fuel filter near an open flame.
► Do not mix gasoline with diesel fuel.
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Service the fuel system according to the inspection intervals specified in this Operator’s Manual.
Use only clean, high-grade diesel fuel. Do not use gasoline.
After working on the fuel system, clean the engine and engine bearings thoroughly from any fuel that may stick.
Always replace all the fuel filters at the same time.
Fuel system
To make it easier for you to reach the filter cartridge of the feed pump, there is an opening in the side wall of the frame. Remove the battery in order to access this opening.
The fuel passes from the reservoir through a pre-filter (2) and a sieve with water separator (1) and is then conveyed by an electric feed pump (F) through the main filter (3) to
the fuel injection pump Fig. 84.
ENVIRONMENTAL NOTE
Avoid environmental damage.
Collect leaking fuel and dispose of it in an ecologically sound manner.
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Fig. 84
Position of the fuel filter
F 2 1
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Servicing the water separator
1. Place a receptacle under the water separator Item 1
2. Unscrew the drain plug Item a (Fig. 85).
3. The collected water now runs out.
4. Retighten the drain plug when the collected water has run out.
5. Venting the fuel system.
Changing the fuel pre-filter
The fuel pre-filter Item 2 (Fig. 84) can only be re
placed in conjunction with the entire housing.
1. Place a receptacle under the fuel pre-filter.
2. Remove the hose clamps from the fuel pre-filter.
3. Disconnect the fuel hoses.
4. Replace the fuel pre-filter.
5. Connect the fuel hoses.
6. Attach the hose clamps for the fuel pre-filter.
7. Venting the fuel system.
Fig. 85
Water separator
1 a
1
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Changing the main fuel filter b
3 c
Fig. 86
Main fuel filter
Venting the fuel system
Fig. 87
Starting switch
0
I
II
III
1. Place a receptacle under the main fuel filter Item 3
2. Unscrew the main fuel filter.
3. Clean the sealing surfaces of the filter base and the
filter cover Item c. (Fig. 86).
4. Replace the gaskets Item b. (Fig. 86).
Wet the new gaskets with diesel fuel and make sure that they fit correctly.
5. Replace the main fuel filter.
6. Put on the filter cover.
7. Screw the main fuel filter tight..
8. Venting the fuel system.
1. Fill the fuel reservoir.
2. Switch the starting switch to position I (operation) so that the electrical fuel feed pump is working.
3. Wait 1 minute; the system will vent itself automatically.
4. The engine can now be started..
W L 36
10.7.4 Servicing the air filter system
The loader is equipped with a dry air filter for filtering the engine intake air. The dry air filter consists of a main filter and a safety filter element. To access the dry air filter, open the engine enclosure.
WARNING
Crushing/shearing hazard.
Moving engine parts can crush and cut.
► Do not open the engine enclosure unless the engine is stopped to avoid hazards from moving objects (cooling fan and drive belts for the fan and alternator).
Burn hazard.
Engine components can get very hot during operation.
► Do not touch the engine mass, exhaust system, or cooling system immediately after stopping the engine.
► Wait until the stopped engine has cooled to the point that the exhaust system, engine mass and cooling system are comfortable to touch
SE RVICING A ND INSPEC TION
Service the air filter according to the inspection intervals specified in this Operator’s Manual.
Dirty, contaminated air entering the engine will cause damage and reduce performance.
Never let the engine run if parts of the air intake system are removed.
Replace damaged air filters immediately.
ENVIRONMENTAL NOTE
Avoid environmental damage.
The main air filter element must be replaced at an early stage. If it is allowed to get too dirty, exhaust gas emissions will increase.
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Air filter dust valve
Check if the outlet slot on the dust valve Item 1 (Fig. 88)
is clear. Remove dust accumulation by pinching the valve.
Check main air filter element / clean / replace
Clean or replace the main filter element Item 1
(Fig. 89) during inspections or if the indicator
light for the air filter on the instrument panel is il luminated between inspection intervals Item 12
2
2
1
Fig. 88
Location of the air filter
Fig. 89
Air filter elements
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1. Remove the fasteners on the cover Item 2 (Fig. 88) and
take off the cover.
2.
Remove the main filter element Item 1 (Fig. 89). Do not
remove the safety filter element in the process.
3. Perform a visual inspection of the intake manifold between the filter and the engine for leaks and tight fit. The intake manifold must not display any exterior damage.
4. Clean the main filter element (knock off lightly and blow out with compressed air from the inside to the outside).
Should the main filter element be too dirty or damaged, replace it.
Install a new or cleaned main filter element, repeating the steps in the reverse order.
After a new or a cleaned main filter element has been in stalled, the indicator light in the instrument panel Item 12
(Fig. 13, page 52) should no longer light when the engine
is running. Should this nevertheless be the case, replace the safety filter.
Checking / changing the safety filter
Replace the safety filter if necessary, and at least after cleaning the main filter for the fifth time.
Should it be apparent while servicing the dry air filter that a maintenance fault was present or that the main filter element
is damaged, replace the safety filter element Item 2 (Fig. 89).
1. Remove the three fasteners on the cover Item 2 (Fig. 88).
2. Remove the cover Item 2 (Fig. 88):
3.
Pull out the main filter element Item 1 (Fig. 89).
4.
Pull out the safety filter element Item 2 (Fig. 89).
5. Insert a new safety filter element..
Assembly takes place in the reverse order.
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