BH27, BH30 and BH30 W Skid Steer Loader Backhoes Caterpillar

Removal Procedure

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Personal injury can result from hydraulic oil pressure and hot oil. Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system. Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.

Note: Put identification marks on all lines and on all fittings for installation purposes. Plug all lines. This will help to prevent fluid loss and this also helps to keep contaminants from entering the system.

1. Position the Backhoe so that the stick is fully extended and lowered to the ground.

2. Remove the work tool from the host machine. Refer to Operation and Maintenance Manual, "Installation".

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Illustration 1	g00830296

3. Attach a suitable lifting device (1) to the boom cylinder. The boom cylinder weighs 36.3 kg (80 lb).

4. Remove the retaining ring, the washer, and pin (2) .

5. Remove the retaining ring, the washer, and the pin (3) .

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Illustration 2	g00830329

6. Lift the boom cylinder (5) from the boom.

7. Disconnect the two hydraulic lines (4). Remove the boom cylinder (5) .

Installation Procedure

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Illustration 3	g00830329

1. Use a suitable lifting device to place the boom cylinder on top of the boom. The boom cylinder weighs 36.3 kg (80 lb).

2. Connect the two hydraulic lines (4) .

3. Install the boom cylinder (5) into position.

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Illustration 4	g00830296

4. Install the pin, the washer, and retaining ring (3) .

5. Install the pin, the washer, and retaining ring (2) .

6. Remove the suitable lifting device (1) .