Atlas Copco Hydraulic Breaker HBC 4000S

CAUTION! Always run the hammer at the correct working pressure. See Technical Data. If the max. working pressure of the hammer is exceeded this may overload the accumulator and cause damage.

Hand lubrication with a grease gun

Lubricate the chisel shank generously every other hour with high-temperature grease such as Atlas Copco Tool shank grease. This also lubricates the bushings and chisel holders.

On lubrication, the chisel must be pressed against the hammer piston so that the space between the piston and the chisel does not fill with grease (Fig. 6)

For all overhead work, the bushing and chisel must be lubricated often enough to ensure that dirt does not penetrate into the hammer.

Sign off on the hydraulic breaker maintenance

CAUTION! Always run the hammer at the correct working pressure. See Technical Data. If the max. working pressure of the hammer is exceeded this may overload the accumulator and cause damage.

Check chisel holder and locking pins.

Check shock absorber and buffers.

Check that hoses and couplings are in good condition.

Check that the adapter plate bolts are sound and have not worked loose.

Top up the central lubrication system.

Sign off on the daily hydraulic breaker maintenance

CAUTION! Always run the hammer at the correct working pressure. See Technical Data. If the max. working pressure of the hammer is exceeded this may overload the accumulator and cause damage.

For safety reasons inspection and service should be done at the nearest Atlas Copco service centre, or authorised workshop.

Enter the current working pressure of the hammer

Is the working pressure within the acceptable range?

Sign off on the hydraulic breaker maintenance

CAUTION! Always run the hammer at the correct working pressure. See Technical Data. If the max. working pressure of the hammer is exceeded this may overload the accumulator and cause damage.

Check the wear of the bushing. See Fig. 5 for maximum wear limits. Excessive wear may result in chisel breakage and damage to the piston.

Check housing and adapter plates for cracks and wear.

Sign off on the hydraulic breaker maintenance

WARNING! If the exterior of the accumulator shows signs of rust it should be inspected by Atlas Copco.

WARNING! Before removing the accumulator always release the gas first!

Accumulator shows signs of rust?

Gas released from the accumulator?

WARNING! The accumulator(s) on the hammer are in the charged condition when the hammer is delivered.

Accumulators supplied as spare parts are delivered in the uncharged condition. Do NOT charge the accumulator until it has been securely fitted to the hammer.

Accumulator securely fitted to the hammer?

WARNING! The accumulator may be charged with NITROGEN (N2) only! Use of other gases can cause an explosion.

Accumulator charged with Nitrogen only?