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- Operation instructions
HA20RTJ - HA20RTJ O - HA20RTJ PRO - HA61RTJ O - HA61RTJ PRO
6 - Cold Weather Recommendations
In cold weather conditions, allow engine to run for at least 5 min and warm up ; before operating any
function thereby preventing any damage to the hydraulic system.
In extreme cold conditions, machines should be equipped with optional cold start kits.
Attempting to start engine when temperature is in the negative range, may require the use of a booster
battery.
If engine fails to start, do not crank for an extended time. Allow starter to "cool off" for a few minutes
before attempting again. If engine fails after several attempts, refer to the engine maintenance manual.
N.B.-:-I
NITIAL
STARTING
SHOULD
ALWAYS
BE
PERFORMED
FROM
THE
GROUND
CONTROL
BOX
.
6.1 - E
NGINE
OIL
The correct SAE viscosity grade of oil is determined by the minimum ambient temperature
during cold engine start-up, and the maximum ambient temperature during engine operation.
Generally, use the highest viscosity oil that is available to meet the requirement for the
temperature at start-up.
N.B.-:-F
OR
ADDITIONAL
ENGINE
RECOMMENDATION
,
REFER
TO
THE
ENGINE
MANUAL
PROVIDED
WITH
THE
MACHINE
.
Engine oil viscosity
EMA LGR-1 / API CH-4 Viscosity grade
Ambient temperature
Minimum
Maximum
SAE 0W20
-40°C (-40°F)
10°C (50°F)
SAE 0W30
-40°C (-40°F)
30°C (86°F)
SAE 0W40
-40°C (-40°F)
40°C (104°F)
SAE 5W30
-30°C (-22°F)
30°C (86°F)
SAE 5W40
-30°C (-22°F)
40°C (104°F)
SAE 10W30
-20°C (-4°F)
40°C (104°F)
SAE 15W40
-10°C (14°F)
50°C (122°F)