
Hydraulic oil
Only use Volvo genuine hydraulic oil approved by Volvo Construction Equipment must
be used. Do not mix different brands of hydraulic oil as this can lead to damage in the
hydraulic system.
For the hydraulic oil specification, see page
179
.
Ambient temperature
°C
°F
-40
-40
-30
-22
-20
-4
-10
+14
0
+32
+10
+50
+20
+68
+30
+86
+40
+104
+50
+122
+60
+140
Oil grade
(B)
(A)
(C)
(B)
(A)
(C)
(B)
(A)
(A) : Ambient temperature recommended for general use of hydraulic system and
components.
(B) : Ambient temperature guide for machine operation from a hydraulic oil viewpoint only,
it does not guarantee the completion machine for other conditions like engine starting
performance. In this range a warming-up period is needed to obtain proper performance.
(C) : Ambient temperature range to operate machine under special conditions, not a
recommendation for general use conditions.
Additional recommendation for severe cold areas
A field solution for severe cold condition of ambient temperature between -40°C and
+20°C.
- Type : Anti-wear type hydraulic oil
- Viscosity characteristic
Viscosity index : More than 130
Kinematic Viscosity : Less than 5,000cSt at -40°C, More than 5.6cSt at +90°C
NOTE!
This value is approximately equivalent to ISO Viscosity grade #22.
NOTE!
It is minimum theoretical recommendation without the guarantee of machine condition.
Specifications
Recommended lubricants
183
Содержание ECR50D
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