lift-master htl Manuel D’Utilisation

1. Install brake drum on clutch pulley shaft as

illustrated in Fig. A.

2. Attach the three spacers provided to back of brake

assembly housing using three 5/16 x 5/8 sems
screws (Figs. B and C).

3. Push brake lever engaging nylon stud release

between brake shoes and align brake drum
between brake shoe assembly (Fig. B).

4. Adjust spring loaded bolt on brake shoe assembly

so that spring is compressed to 1".

5. Mount brake assembly housing with spacers

attached to operator frame using three 5/16 x 5/8
sems screws (See Fig. B).

6. Remove plug from 7/8" hole in electrical box and

attach conduit assembly.

7. Connect wires per master wiring diagram.

8. Reconnect power to the operator.

9. Test for proper brake operation and replace brake

cover.

Brake Drum

3/4" Washer

3/4" Washer

Cotter

Pin

Cotter

Pin

Clutch

Pulley Shaft

APT Bearings Shown.

Models HTL and APT

Brake Installation Identical

6

2

1

8

11

9

10

7

12

3

4

5

Spacer

Push Brake Lever

to Disengage Brake

Shoe Assembly

Operator

Frame

Brake Shoe

Assembly

5/16" x 5/8"

SEMS Screw

Brake

Drum

5/16" x 5/8"

SEMS Screw

Nylon

Stud

Release

9