Removal and Installation of Arm

Caution ・ Stop the machine on a level location with good footing. ・ Be sure to stop the engine before beginning work. ・ When working together with others, always be sure to exchange signals and pay adequate attention to safety. ・ Always wear protective devices (protective eyewear and safety shoes, etc.) when working with a hammer. ・ Be sure to inspect the nylon sling and other lifting equipment before beginning work. ・ Do not stand or pass under the suspended load.

Items to prepare •Wrench (19 mm) •Hammer •Striking rod •Nylon sling (with the required lifting capacity) •Crane (with the required lifting capacity) •Grease •Rag •Cleaning fluid •Crossties 1.Removal of Arm [1] Remove the bucket. (For details, see "Removal and Installation of Bucket".)

[2] Remove the bucket cylinder. (For details, see "Removal and Installation of Bucket Cylinder".)

[3] Remove the arm cylinder. (For details, see "Removal and Installation of Arm Cylinder".)

[4] Bring the arm (1) top in contact with the ground and use a crane and nylon sling (2) to secure it.

At this time, insert the arm cylinder pin (3) and secure with the nylon sling.

1 Arm 2 Nylon sling 3 Pin

[5] Use a wrench (19 mm) to remove the bolt (4) and washer (5).

[6] Use a hammer (6) and striking rod (7) to push the pin (8) out and remove the arm (9). •If a pin is hard to remove, there is a load on the pin. •When removing the pins, be careful not to damage the O-rings or dust seals. •Be very careful. When the pin is removed, the arm may fall slightly. •Be very careful. The arm may fall over to the side.

[7] Lift the arm.

[8] Place the arm on crossties.

2.Installation of Arm

To install, perform the reverse of the removal procedure. •Clean each pin and pin hole. •When inserting pins, be careful not to damage the dust seals. •As the final step, always grease up.

4 Bolt 5 Washer 6 Hammer 7 Striking rod 8 Pin 9 Arm