116
Service and Maintenance
Hydraulic retarder
Check oil level
1. Check the oil level when the retarder oil is warn (min.
60°C). The bus must be level.
2. Activate the retarder fully (stage 5) for about 5 seconds.
Repeat twice. Shut off and allow the oil to settle (approx.
5 minutes).
3. Check the oil level with either the dipstick (1) or through
the level hole (2) on the left-hand side of the retarder
housing. The level should reach between the min. and
max marks on the dipstick or to the bottom of the level
hole. Top up if needed. The difference in volume be-
tween ”min” and ”max” is approximately 1 litre.
Fill slowly when topping up through the top plug (3). Fill-
ing too rapidly may cause oil to leak out through the ven-
tilation channel. Change sealing washers. Tightening
torque, plugs: 80 Nm.
Oil grades
Oil change interval: 120,000 km, single-grade engine oil
SAE 10W, 20W-20, 30, grade API CC/SF.
Oil change interval: 180,000 km, synthetic oil SAE 5W-40,
5W-50, 10W-40, 10W-30 or higher.
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Summary of Contents for B10M
Page 1: ...Driver s Manual...
Page 6: ...4 Pay attention to warning and indicator lights Their purpose is to warn of danger...
Page 131: ...129 TechnicalData Type plates 130 Specifications Data 132...
Page 142: ...140 Notes...
Page 143: ...141 Notes...
Page 144: ...142 Notes...
Page 145: ...143 Notes...
Page 146: ...144 Notes...
Page 147: ...3 Notes...