AP0902
5–19
Maintenance
Important information concerning the
use of biodegradable oil
•
Use only the biodegradable hydraulic fluids that have been approved by the manufac-
turer – see Engine fluids and lubricants on page 5-39. Always contact the manufacturer
for the use of other products. In addition, ask the oil supplier for a written declaration of
guarantee. This guarantee is applicable to damage occurring to the hydraulic compo-
nents, which can be proved to be due to the hydraulic fluid
•
The remaining amount of initial hydraulic fluid in the hydraulic system must not exceed
8 % when using another type of biodegradable oil (manufacturer indications)
•
Do not top up with mineral oil – the content of mineral oil must not exceed 2 % in order
to avoid foaming problems and to ensure biological degradability (hazardous waste!)
•
When running the machine with biodegradable oil, the same oil and filter replacement
intervals are used as for mineral oil – see maintenance plans in the Annex.
In addition, take a sample of the hydraulic oil every 600 service hours at the latest, and
have it analyzed (order no. for oil sample set: 0 00 440 00 14). Further action depends
on the results of the oil analysis
•
Drain the condensation water in the hydraulic oil tank every 600 service hours, and in
any case before the cold season. The water content should not exceed 0.1 % by weight
•
The instructions in this operator’s manual concerning environmental protection also for
the use of biodegradable oil
•
If additional hydraulic attachments are mounted or operated, use the same type of
biodegradable oil for these attachments to avoid mixtures in the hydraulic system
Subsequent change from mineral oil to biodegradable oil
☞
Completely flush the hydraulic components. To do this:
•
Park the machine on level ground when it is at operating temperature
•
Retract all the hydraulic cylinders
•
Switch off the engine
When all the oil has returned to the hydraulic oil tank:
•
Completely drain the hydraulic oil
•
Fill the hydraulic system with the new oil type
•
Start the engine
•
Operate all the components of the hydraulic system, such as cylinders, to “flush” the
lines, cylinders and pumps
•
Retract all the hydraulic cylinders
When all the oil has returned to the hydraulic oil tank:
•
Switch off the engine
•
Completely drain the hydraulic oil again
•
Replace the hydraulic oil return filter (insert)– see Hydraulic oil return filter on
page 5-20
•
Fill the hydraulic system with fresh oil to the required level
•
Check the oil level and top up if necessary
Fig. 152: Label: biodegradable oil
Summary of Contents for 418T Wheel
Page 1: ...OPERATOR S MANUAL Form No 418T Wheel Loader 909879...
Page 10: ...Section 1 Introduction 1...
Page 11: ......
Page 22: ...Section 2 Safety instructions 2...
Page 23: ......
Page 36: ...Section 3 Operation...
Page 37: ......
Page 40: ...AP0902 3 3 Overview see overleaf Overview see overleaf...
Page 106: ...Section 4 Troubleshooting...
Page 107: ......
Page 111: ...4 4 AP0902 Troubleshooting Notes...
Page 112: ...Section 5 Maintenance 5...
Page 113: ......
Page 154: ...Section 6 Helpful information for using the service parts list...
Page 155: ......
Page 164: ...Section 7 Specifications 7...
Page 165: ......
Page 177: ...7 12 AP0902 Specifications Notes...
Page 178: ...Annex...
Page 179: ......
Page 189: ...Annex A 10 AP0902 Notes...
Page 190: ......