Lifted from the workshop manual for a Gen 1 Pajero.

PARKING BRAKE LEVER STROKE CHECK AND ADJUSTMENT
1. Pull the parking brake lever (hand brake) with a force of approximately 45 lbs and count the number of clicks. Standard value = 4-6 clicks
2. If the parking brake lever stroke is not within standard value range, make the adjustments by following the procedures below:
- Loosen the adjuster to slacken the parking brake cable
- Tighten the adjuster slightly, repeating pulling and releasing the parking brake lever, to adjust the brake shoe clearance
- Tighten the adjuster until the parking brake lever is within standard value
- After adjustment ensure that the adjuster is secured with the nut holder
3. Return the parking brake lever, remove the brake drum, and check to ensure that the brake lever adjuster is touching the shoe
- Caution: If the parking brake cable is pulled too far, the adjuster lever does not fit the adjuster, resulting in faulty operation of the brake shoe adjuster
4. With the parking brake lever in released position, turn the rear wheel to confirm that the rear brakes are not dragging