REPLACING A HYDRAULIC BREAKER

REPLACING A HYDRAULIC BREAKER (optional) Removal

STEP 1

CP99F001 Place the hydraulic breaker laying on hard, flat ground.

STEP 2

Stop the engine and remove the starter switch key. Release all pressure in the hydraulic system. See “Releasing pressure in the hydraulic system” in the “Lubrication/Filters/Fluids” Section.

STEP 3

CP99F001 Place a receptacle of suitable capacity under the hydraulic lines. Close the shutoff valves (for opening or closing the circuit) on the lines, if fitted. Disconnect the hoses from the tubes. Plug if necessary.

STEP 4

Remove the retaining hardware (this can vary depending on the mounting arrangement).

STEP 5

Remove the connecting rod/hydraulic breaker linkage pin and the dipper/ hydraulic breaker linkage pin.

STEP 6

Operate the machine controls to free the hydraulic breaker.

STEP 7

Remove the lifting ring hole plug and install the lifting ring, see “Handling the hydraulic breaker” in the “Operating Instructions” Section.

Installation

STEP 1

Use the attachment controls to engage the dipper in the hydraulic breaker.

STEP 2

Stop the engine and remove the starter switch key. Release all pressure in the hydraulic system. See “Releasing pressure in the hydraulic system” in the “Lubrication/Filters/Fluids” Section.

STEP 3

Install the dipper/hydraulic breaker linkage pin. Place a receptacle of a suitable capacity under the hydraulic lines. Connect the hoses to the hydraulic breaker.

STEP 4

Operate the connecting rod control so as to engage it in the hydraulic breaker, then stop the engine and remove the starter switch key.

STEP 5

Install the connecting rod/hydraulic breaker linkage pin and then install the retaining hardware (this can vary depending on the mounting arrangement) on the linkage pins.

STEP 6

Open the shut-off valves (for opening or closing the circuit) on the lines, if fitted.

STEP 7

Remove the lifting ring and plug the lifting ring hole.

STEP 8

Grease the linkage pins.

STEP 9

For hydraulic breaker operation, see “Option pedal” in the “Controls/Instruments/Accessories” Section.