Hitachi ZAXIS 30U-5N Operator's Manual page 319

Stop operation if breaker hydraulic hoses jump
abnormally.
When a hydraulic hose (1) shakes abnormally, continuing to
use it as-is results in massive shock, damage to the pump
and a negative impact on the machine.
Immediately consult the nearest Hitachi representative.
Do not operate the breaker in water.
Doing so will cause rust and seal damage, resulting in
damage to the hydraulic system components.
Rust, dust and water may enter into the hydraulic oil
through the broken seal, causing damage to the hydraulic
system.
Do not use breaker for lifting operation.
The machine tipping over and/or breaker damage may
result.
Do not operate the breaker to the side of the machine.
The machine may become unstable and undercarriage
component life may shorten as a result from operating the
breaker to the side of the machine.
OPTIONAL ATTACHMENT
ATTACHMENT (HYDRAULIC BREAKER)
13-7
1
1
M104-05-058
MZX5-13-017
MZX5-13-004
MZX5-13-005