MAINTENANCE
7-16
Axle Oil
Kind of Oil Gear Oil
Application
Axle & Wet Disc Brake
Air Temperature -25 to 45 °C (-13 to 113 °F)
Recommended Product
Hitachi
High Gear Oil
TKTT15150-4th
Alternative Product
TO-4 SAE50 Fluid, TO-4M Fluid,
with 6% friction modifier
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NOTE:
When using TO-4 SAE50 or TM-4M Fluid other than the listed recommended products, add
6% additive to prevent or eliminate service brake application noise. Recommended additive
package: HCM 9990A or equivalent.
The acceptable ambient temperature when using TO-4 SAE50 Fluid should fall within the
range -15 to 45°C (5 to 113°F).
The acceptable ambient temperature when using TO-4M Fluid should fall within the range
-30 to 45°C (-22 to 113°F).
Hydraulic Oil
Kind of Oil Hydraulic Oil
Application
Hydraulic System (Hydraulic Oil Tank)
Air Temperature
-20 to 45 °C (-4 to 113 °F)
Change Interval 4000 hours 2000 hours
Recommended Product
Hitachi
Super EX 46HN -
Alternative Product - JCMAS HK VG46W
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NOTE:
Never mix hydraulic oils containing zinc with zinc-free hydraulic oils as hydraulic system
component damage could result.
Use appropriate oil of viscosity depending on the temperature. Low temperature viscosity
will differ depending on each product. Contact each hydraulic oil manufacture directly.
Recommended Coolant
Refer to page 7-72 for information.
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