Komatsu D31EX-21, Operation & Maintenance Manual, Page: 191 / 256

MAINTENANCE
USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE
4-11
USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING
TO AMBIENT TEMPERATURE 4
PROPER SELECTION OF FUEL, COOLANT AND LUBRICANTS 4
*1: ASTM D975 No.1
Reservoir
Kind of
fluid
AMBIENT
TEMPERATURE
Type
Min Max
Engine oil pan
Engine oil
0°C
-20° C
-20°C
-15° C
40°C
10° C
40° C
40° C
SAE 30
SAE 10W
SAE 10W-30
SAE 15W-40
Idler (each) -20° C 40° C SAE 30
Hydraulic system
-20° C 30° C SAE 10W
-20° C 40° C SAE 10W-30
-15° C 40° C SAE 15W-40
Final drive case (each) -20°C 40°C SAE30
Fuel tank Diesel fuel
-10° C
-30° C 40° C
-10° C
ASTM D975 No. 2
ASTM D975 No. 1
(for winter use)
Cooling sytem Water Add antifreeze
Grease fitting Grease -30° C 40° C NLGI No. 2
Engine oil
pan
Final drive
case
(each)
Hydraulic
system
Idler
(each)
Fuel tank
Cooling system
(incl. sub-tank)
D31,37 D39
Specified
capacity
liter 14 3.5 97 0.16 165 27 32
Refill
capacity
liter 12.5 3.5 47 0.16 - - -