
Service and maintenance
100
Hydraulic system
Changing the hydraulic oil
Change the hydraulic oil every 1000 hours.
Operate all cylinders until they are fully retracted (see Fig. B). Low-
er the excavating equipment to the ground and shut down the en-
gine. The dozer blade must be lowered for safety reasons.
1 Hydraulic oil must be drained off at operating temperature.
2 Slightly slacken the filler neck cap (14) to vent the hydraulic oil
tank (15). Take the screen filter (14.1) out of the filler neck, cle-
an it and reinsert it into the filler neck. Check the seals.
3 Unscrew the drain plug (15.1) and let the hydraulic oil run out.
4 Screw the drain plug (15.1) back in with a new seal ring.
5 Fill in new oil through the filler neck (14) up to the top of the in-
spection glass (13.1).
6 Close filler neck (14).
7 After a short test run check the hydraulic oil level in the sight
glass (13), it must reach the middle of the sight glass (13.2); top
up if necessary.
NOTE! (Quality of hydraulic oil see table of fuels and lubri-
cants on page 107). If the hydraulic system is filled with bio-
degradable hydraulic oil from the factory (see sticker on filler
neck), only the oil quality specified on the sticker must be
used to fill up or when changing the oil.
WARNING!
Hot oil – danger of scalding!
Catch running out oil and dispose of environmentally.
Type
Filling capacities
EC35
62 litre
EC45
62 litre
1012166
B
13
16
15.1
15.2
15.3
14.1
14
13.1
13.2
Summary of Contents for EC35
Page 1: ...OPERATOR S MANUAL Ref No VOE21B1002144 English Printed in Sweden CST ...
Page 38: ...Other controls 36 Operator s seat ...
Page 48: ...Operating instructions 46 Loading and unloading the machine ...
Page 82: ...Safety when servicing 80 Read before servicing ...
Page 138: ...Specifications 136 Service history ...
Page 140: ...Alphabetical index 138 Ref No VOE21B1002144 English Printed in Sweden CST Volvo Eskilstuna ...