Case CE620 CB1150 CB1450 CB2850 CB3750 CB4000 & CB5200 for 88 & 90 Series EXCAVATOR OPERATOR MANUAL

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MAINTENANCE/ADJUSTMENTS

REPLACING A HYDRAULIC HAMMER STEP 4 Removal Template Name: OM_1_col Template Date: 1994_04_29

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

STEP 1

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. CP99C005

Place the hydraulic breaker laying on hard, flat ground. TRIM THIS EDGE

STEP 2

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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 of the owner’s manual for the machine concerned. STEP 3

STEP 7 Remove the lifting ring hole plug and install the lifting ring (depending on type of hydraulic breaker). 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 of the owner’s manual for the machine concerned. STEP 3

CP99C005

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.

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.

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TRIM THIS EDGE LEFT PAGE


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