Service and maintenance
Hydraulic system 101
Changing the hydraulic oil filter
Check the hydraulic oil filter acc. to the operating hours.
1 Operate all cylinders, until they are fully retracted (see Fig. B).
Lower the excavating equipment to the ground and shut the
engine down. The dozer blade must be lowered for safety rea-
sons.
2 Shut down the engine and move the operating lever for the ex-
cavating equipment to all directions, to relieve the residual
pressure.
3 Slacken and unscrew the hydraulic oil filter (16) with a filter
wrench.
4 Clean the sealing surface of the filter carrier from any dirt.
5 Apply some oil to the rubber seal on the new oil filter cartridge.
6 Screw the cartridge on by hand until the seal touches the sur-
face.
7 Tighten the oil filter cartridge for another half turn.
8 Check the oil filter cartridge for leaks.
NOTE! Excessive tightening of the oil filter may damage the
thread or the seal of the filter.
9 Check hydraulic oil level, top up if necessary
Type Operating hours
EC35 1. Service after 100h, then every 500h.
EC45 1. Service after 100h, then every 500h.
WARNING!
Hot oil – danger of scalding!
Catch running out oil and dispose of environmentally
together with the filter cartridge.
1012166
B
13
16
15.1
15.2
1
5
.
3
14.1
14
13.1
13.2
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