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3. MAINTENANCE
HYDRAULIC OIL
Note: It is not recommended to mix types of hydraulic oils. Check carriers hydraulic oil
recommendations before adding hydraulic oil.
1. Check the oil level, oil filter condition and oil cooler in the carrier periodically.
2. Replace the hydraulic oil every 600 hours and the filter every 100 hours, or according
to carrier recommendations.
3. Always be aware of any abnormalities in the operation of the hammer such as
changes to hammer blow speed, impact force or oil temperature. The oil temperature
should not exceed 180°F (80°C).
4. Check the condition of the hydraulic oil as specified in Table 2.
CHECKING CONDITION OF HYDRAULIC OIL
Note: Refer to carrier service manual for proper class and type of hydraulic oil.
Hydraulic oil must be changed more frequently than the carrier instruction manual
recommends. This is because hammer operation requires more oil circulation than
normal operation. Oil condition can be visually checked as specified in Table 2.
Table 2. Hydraulic Oil Conditions
COLOR CONDITION
Transparent and no color change Good
Transparent but too bright Oil Mixed
Milky white Air and / or water mixed
Dark and dirty with odor Deteriorated
Transparent but with black spots Foreign particles mixed
Bubbly Grease mixed