Inspect the belt for cracks or damage. If the belt is cracked or damaged, replace it.
Check that the position of the auto-tensioner indicator (A) is within the standard range (B) as shown. If it is out of the standard range, replace the drive belt.

Countershaft Inspection (M/T)
Inspect the gear and bearing contact areas for wear and damage, then
measure the countershaft at points A, B, and C. If any part of the
countershaft is less than the service limit, replace ...
Visual Index
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Rear Brake Hose Replacement
Raise and support the vehicle.
Remove the rear wheel.
Disconnect the brake hose (A) from the brake line (B) using a 10 mm flare-nut
wrench (C).
...