RAMMER 255E, Operator'S Manual

Page: 31 / 68

Operation - Page 31 COPYRIGHT © 2020 SANDVIK MINING AND CONSTRUCTION OY
Operation 255E
WORKING PROCEDURE
Warning! Protect yourself and your neighbourhood against flying chips of
rock. Do not operate the hammer or carrier if someone is too close to the
hammer.
Do not use the hammer, as a standard assembly, under water. If water fills the
space where the piston strikes the tool, this generates a strong pressure wave
that may damage the hammer.
Warning! To avoid falling objects, do not use the product to lift other products.
See “Lifting instructions” on page 9.
1. Prepare the carrier for normal excavation work. Move the carrier to the required
position. Set the drive to neutral.
2. Set the engine speed to the recommended engine RPM for correct amount of oil
supply.
3. Carefully operate the carrier controls to place the hammer and boom into the
breaking position. Quick and careless boom movements can result in damage to
the hammer.