Maintenance
Safety, Operation and Maintenance Manual - Aug 2012
5-20
SY115C9/135C/155H Crawler Hydraulic Excavator
5.4.2 Recommended oils:
1. Engine oil
Select the oil of proper viscosity according
to the temperature range given in the oil
change schedule.
Engine oil grade: Above API CF-4
Recommended engine oil brand and type:
Caltex CH-4 15W-40
2. Engine fuel
Light diesel oil (GB252.81)
●
In most cases, the use of fuel ASTH2
and the diesel oil (minimum cetane
number is 40) can achieve the best
economic result and operating perfor-
mance. At where the elevation is high or
the ambient temperature is too low, it is
necessary to use the fuel whose cetane
number is more than 40 in order to pre-
vent
fl
ameout and too much smoke.
●
When the fuel of low sulfur content is
used, its cloud point shall be at lease
10°C lower than the expected minimum
fuel temperature. Cloud point is the
temperature at which the waxy crystals
begin to form.
●
The universal diesel fuel of commercial
brands shall contain sulfur that is less
than 0.5%.
●
Clean fuel free from water and/or impu-
rities shall be ensured before refueling.
3. Hydraulic oil
The hydraulic system uses Caltex HDZ46
hydraulic oil (code B420106000036).
When the ambient temperature is below
0°C, the following items have to be fol-
lowed to heat the hydraulic system in order