Straightening Fork Tubes

Straightening fork tubes requires several special tools including hydraulic or arbor press, dial indicator and straightening blocks.

Never attempt to straighten a fork tube that has a sharp angle bend. It should be scrapped because the metal is stretched.

1. Before beginning the straightening operation, clean the fork tube. Locate bends with dial indicator. A fork tube is usually bent in two or three places, seldom only one. Place fork tube on straightening blocks. Correct bend in tube with an arbor or hydraulic press.

2. Find the highest point out-of-round with a dial indicator (Figure 2-46) and mark with chalk. Press high point as shown in Figure 2-47. Repeat indicating and pressing operations until tube is within 0.003 in. to 0.004 in. of being straight.

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