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Maintenance—Machine
KR46761,00013FE -19-27OCT16-1/1
Hydraulic Oil
IMPORTANT: This machine is factory lled with Super
EX 46HN extended life zinc-free hydraulic oil.
DO NOT MIX ZINC-BASED AND ZINC-FREE OILS.
Flushing system is required when changing
from zinc-free to zinc-based oils. Contact
authorized dealer for the ushing procedure.
Avoid mixing different brands of oils. Oil
manufacturers engineer their oils to meet
certain specications and requirements.
Mixing different oils can degrade lubricant
and machine performance.
Use oil viscosity based on the expected air temperature
range during the period between oil changes.
Low Temperature Operation
•
Do not mix zinc-based and zinc-free oils.
•
A preferred ISO32 hydraulic oil may be added to the
machine for low temperature operations. Hydraulic
system oil viscosity must be 32Cst at 40°C (104°F)
minimum and must not be operated when ambient
temperature exceeds 30°C (86°F).
•
When switching back to warm weather operation, a
preferred ISO46 hydraulic oil may be added to the
machine. The hydraulic system oil viscosity must be
40Cst at 40°C (104°F) minimum and must not be
operated when ambient temperature exceeds 40°C
(104°F).
Seasonal Hydraulic Flushing
•
Do not mix zinc-based and zinc-free oils.
•
Two hydraulic tank ushes are required when changing
hydraulic oils for seasonal operation. Drain and rell
tank with new oil (ISO32-cold, ISO46-warm). Operate
machine to mix oil in system. Drain and rell tank again.
Check oil viscosity.
The following oil is preferred:
5000 hour change interval:
• Zinc-Free Super EX 46HN oil from Hitachi
• Zinc-Free Super Hyrando WP46
2500 hour change interval:
• Zinc-Free Daphne Super Hydro A 32 (for low temperature
operation)
-40˚C
-30˚C
-20˚C
-10˚C
0˚C
10˚C
20˚C
30˚C
40˚C
50˚C
-40˚F
-22˚F
-4˚F
14˚F
32˚F
50˚F
68˚F
86˚F
104˚F
122˚F
Premium AW46
Daphne Super Hydro A 32
Premium AW32
Super EX 46HN
Super Hyrando WP46
TX1165037 —UN—10SEP14
Hydraulic Oil
1500 hour change interval:
IMPORTANT: Avoid damage to the machine.
Zinc-based oils must not be mixed with 2500
hour and 5000 hour zinc-free oils.
The following products may be zinc-based and can be
used provided a complete hydraulic system ush has
been performed. Contact an authorized dealer for this
procedure.
Premium AW oil: AW46 or AW32 (for low temperature
operation)
Biodegradable Hydraulic Oil:
IMPORTANT: Other re resistant and readily
biodegradable oil (also called FR oils) are
not approved in Hitachi Construction and
Forestry equipment.
Use only Exxon Mobil EAL Envirosyn 46H Synthetic
Esther Oil when a biodegradable oil is required. Contact
an authorized Hitachi dealer for this Registration and
Routine Oil Analysis to meet warranty requirements.
3-1-9
112321
PN=187
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