Toyota Model 7HBW23 Service Manual
Section 6. Component Procedures Electromagnetic Brake
Electromagnetic Brake
Air Gap Adjustment
NOTE: For replacement parts information refer to Parts Catalog.
The nominal gap between the coil housing and the pressure plate in the applied position is 0.008 to 0.010 in. (0.2 to 0.25 mm).
Section 6. Component Procedures
1. Press the red OFF (O) key on the keypad. Disconnect the battery connector. Allow the brake to cool completely before servicing.
Brake Disc Location
Use extreme care whenever the truck is jacked up. Keep hands and feet clear from vehicle while jacking the truck. After the truck is jacked, Do NOT rely on the jack alone to support the truck. See “Jacking Safety” on page 2-9.
The electromagnetic brake assembly is mounted directly to the drive motor. See Figure 6-31.
2. Jack the truck and block the frame. 3. Remove the drive unit cover.
Electromagnetic Brake
4. Loosen the three 4 mm Allen head brake assembly mounting bolts. See Figure 6-32. Air gap
Adjusting Screw
0.008 - 0.010 in. (0.2 - 0.25 mm)
Mounting Bolt
1581 009.tif
Figure 6-31.
Brake Location
Friction Disc
Pressure Plate
Coil Housing 1665 053.tif
Figure 6-32.
Brake Gap Adjustment
5. Turn the adjusting screws while checking the air gap at several points with a 0.008 in. (0.2 mm) feeler gauge. 6. Tighten the mounting bolts to 50 in. lb. (5.6 Nm). Recheck the gap with the feeler gauge.
00700-CL340-05, Issued: 2 May 2005
6-33