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10 Inspection and maintenance
10.2.4 Replacing the stepper motor for the gas
mixer
1.
Unplug the plug from the upper stepper motor (1) in the
gas mixer.
2.
Undo the two screws on the stepper motor.
3.
Remove the stepper motor, including the O-ring.
4.
Fit a new O-ring and a new stepper motor on the gas
mixer.
5.
Use a torque spanner to tighten the stepper motor.
–
4 Nm
6.
Plug the plug into the connection on the stepper motor.
◁
The plug clicks into place.
10.2.5 Replace the air filter
2
1.
Loosen the hoses (2) on the intake air damper.
2.
Loosen the wing nut (1) in the centre of the cover.
3.
Pull the cover downwards and away from the intake air
damper.
20
4.
5.
6.
7.
1
8.
9.
10. Replace any defective hoses.
11. Install the hoses without kinks.
12. Check that the hoses are positioned securely.
10.2.6 Oil and oil filter
1.
1
Conditions: You carry out an oil inspection.
▶
Conditions: You carry out maintenance work.
▶
10.2.6.1 Measuring the oil level
1.
2.
3.
4.
5.
6.
7.
Installation and maintenance instructions ecoPOWER 3.0 /2, ecoPOWER 4.7 /2 0020241403_02
Remove the old air filter insert.
Check the intake air damper for dirt.
If required, clean the intake air damper.
Insert a new air filter insert.
Tighten the cover using the wing nut.
Check the hoses for defects.
1
Measure the oil level. (→ Page 20)
Top up the oil as required. (→ Page 21)
Change the oil and the oil filter. (→ Page 21)
Unscrew the dipstick (1) from the oil filler neck.
Clean the dipstick using a clean cloth.
Insert the dipstick as far as it will go in the oil filler neck.
Do not screw the dipstick in tightly.
Pull out the dipstick again.
Read the oil level at the markings on the dipstick.
Make a note of the oil level in the maintenance report.
Place the dipstick in the oil filler neck and tighten the
dipstick to 25 Nm.
2
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