ABB CRB 1300 Product Manual page 392

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5.5.2 Replacing the housing and extender unit

Removing the axis-3 timing belt

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Remove the lower arm support.

If the lower arm support is hard to loosen from

the swing, use a plastic hammer to knock on the

lower arm support lightly.

Make sure that all supplies for electrical power,

hydraulic pressure, and air pressure are turned

Loosening timing belts will release axes. This

means the axes can fall down.

Make sure axes are well supported before

loosening timing belts.

The upper arms, which includes housing, extender

unit (only for CRB 1300-7/1.4 and ), tubular and

tilt unit weighs 17 kg.

All lifting accessories used must be sized accord-

Fit a roundsling to the upper arm to support the

weight (no force).

Loosen the screws and move the motor slightly

to slacken the timing belt.

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Product manual - CRB 1300

3HAC083111-001 Revision: B

Troubleshooting