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Servicing
10. Servicing
10.1 General servicing
1. For servicing of the gasoline engine, refer to the engine
instructions.
2. Check the high-pressure hoses for damage.
3. Check the inlet and outlet vents for wear.
4. Check oil level in hydraulic oil tank.
5. Carry out an oil change if necessary.
10.2 Checking the oil level in the hydraulic oil tank
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Gasoline units — Check oil level daily.
Electric units — Switch o unit “O” (OFF).
Remove the mains plug from the socket.
arrows) on the oil measuring stick.
3. If necessary, rell oil. For information on the oil grade, refer to
the oil change section, chapter 10.3.
1
min:
max:
10.3 Oil and oil lter change ot the hydraulic oil
pump
Carry out oil and oil lter change once every 12 months.
Danger to the environment
Do not dispose of waste oil into the sewer or soil.
Polluting the ground water is a crime. Waste oil can
be returned where hydraulic oil is bought.
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Carry out an oil change while the unit is still warm
from operation.
Electric units — Switch o unit “O” (OFF).
Remove the mains plug from the socket.
2. Move the hydraulic ball valve (g. 18, item 1) on the material
feed pump to its vertical position (open).
3. Remove the screws on the hydraulic oil pump cover (2) and
remove cover.
5. Screw out oil lter (4) with a strap spanner and replace.
6. Screw out sealing screw (5) under the hydraulic oil tank. Drain
the waste oil.
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When oil is lled in, air can enter the hydraulic
system. Therefore, the system must be vented.
9. Let the unit run for at least ve minutes at low pressure to
automatically bleed the air from the hydraulic system.
3
1
5
2
4
10.4 High-pressure hose
Inspect the high-pressure hose visually for any notches or bulges, in
particular at the transition in the ttings. It must be possible to turn
the union nuts freely.
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The risk of damage rises with the age of the high-
pressure hose. Wagner recommends replacing high-
pressure hoses after 6 years.