Parking brake replacement and adjustment?

Hmm a J70 series. Troop Carrier is a 78 I believe. They never sold those in the US, only the larger 100/120's came here. We never get the fun toys.

Anyway. The attached picture is of a typical Land Cruiser drum in hat type parking brake. The process is to remove the drum, repair/replace any worn parts. Release the park brake handle and adjust it so it is very slack.
Be sure the bell crank and related hardware are good and free. You want the p-brake cables and hardware to go as far to fully off as you can get.
Then you use the green marked adjuster to expand the shoes out until the drum just slides on. The handbrake does not move the shoes very far so they need to be adjusted until there is just a small amount of drag when you rotate the drum. Once both sides are done and adjusted you bring the handbrake handle up two to three clicks, then tighten the adjuster until the brakes apply. Release the lever and make sure the brakes released. If you have never had that system apart it can be a bear to work on because unless the brake is used all the time the inside of the drum will rust and grind the shoes into scrap in short order. Also, even when every part is new most of the brakes with that design do not hold all that well as there really is not a lot of friction surface away from the drive axle.

PARKING BRAKE SHOE CLEARANCE

1. Disconnect parking brake cable from bellcrank.
2. Remove bellcrank spring.
3. Loosen bellcrank adjusting bolt.
4. Temporarily install 3 lug nuts.
5. Remove access plug.
6. Turn adjuster and expand shoes until disc locks. See Fig 1.
7. Back off adjuster 8 notches.
8. Install access plug.
9. Pull bellcrank until all play in interior linkage is taken up.
10. Screw in bellcrank adjusting bolt until it touches on dust seal. See Fig 2.
11. Loosen bellcrank adjusting bolt one turn, and lock with lock nut. Tighten to specification.
12. Install bellcrank spring. Connect parking brake cable. Remove lug nuts.
13. Seat parking brake shoes and disc.
14. Recheck and adjust parking brake lever travel. See PARKING BRAKE LEVER

PARKING BRAKE LEVER [ DISC BRAKES : ADJUSTMENTS ]
0. Pull parking brake lever all the way up and count the number of clicks which should be 4-6. If incorrect, adjust parking brake.
0. Adjust rear brake shoe clearance. See PARKING BRAKE SHOE CLEARANCE .
0. Remove parking brake lever hole cover. Loosen lock nut and turn adjusting nut until lever travel is correct.
0. Tighten lock nut to specification. See TORQUE SPECIFICATIONS .
0. Install parking brake lever hole cover.

PARKING BRAKE LEVER [ DISC BRAKES : ADJUSTMENTS ]

NOTE: Before adjusting parking brake, make sure that rear brake shoe clearance has been adjusted. See PARKING BRAKE SHOE CLEARANCE .
0. Pull parking brake lever up as far as possible and count number of clicks. There should only be 4-6 clicks. If incorrect, continue procedure.
0. Ensure rear brake shoe clearance has been adjusted. See PARKING BRAKE SHOE CLEARANCE .
0. Loosen lock nut and turn buckle until lever travel is correct. See Fig 1.
0. Tighten lock nut to specification

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