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1.3. Safety information on safe operating
Always operate the hammer from the operator’s seat in the carrier cab, and also close the splinter guard
on the driver’s cab during hammer operations.
The hydraulic hammer must not be used for disallowed applications. Refer to Section “
6.2. Correct
working methods
” of this manual for instructions on how to handle the hydraulic hammer, and
applications for which the hydraulic hammer is unsuitable and must not be used.
Stop the operation if an abnormal noise or vibration is detected during the operation. Check the carrier
and hammer.
Never use the hammer in or underwater unless compressed air is supplied to the hammer. Refer to
Section “
6.2. Correct working methods
for details”.
1.4. Safety information on maintenance
Always follow the instructions described in this manual when performing maintenance work on the hammer.
Pay careful attention to all relevant safety regulations. Most accidents occur when the instructions are
not observed.
Maintenance work should be performed with the carrier completely stopped, the stop valves shut off.
The carrier must be on firm and flat ground with all the control levers switched off.
Use only the lifting points provided and sufficiently strong lifting equipment when lifting the hammer.
Do not start maintenance on the hammer until it has cooled because the hammer is heated up during
operation. Some components, for example, chisel (tool), valve, piston or hydraulic connection parts
become very hot.
The hydraulic oil may be very hot and may cause severe scald. Before disconnecting hydraulic lines,
bleed all hydraulic pressure in the lines. And, always relieve tank pressure of the carrier.
Oil spouted out from the crack or small hole on hydraulic system can penetrate the skin and cause
serious injury. Therefore, be sure that all the connections are tight and pipes and hoses are in good
condition. Use a sheet of cardboard or wood to search for suspected oil leaks.
To avoid an explosion and equipment damage, use only pure nitrogen gas (99.8% or over) in the gas
chamber of the back-head and accumulator.
Only the proper tools should be used for maintenance. Use of improper tools may cause personal injury,
or damage to the hammer.
Oily, greasy ground may be very slippery. Collect any oil and grease, and dispose it correctly for safety
and environment.
Keep personnel away from the hammer while servicing the chisel, gas chambers or hydraulic system.
Unauthorized alteration on the hammer may cause the hammer serious troubles or reduce hammer life
and performance. These cases cannot be guaranteed by PRODEM.