10 x 4, 14 x 6 And 18 x 8 Type H Brakes | |
|
Replace lining and reassemble brake. * Brake lining should be replaced before it has worn down to the heads of the brass lining bolts. This will be when the remaining thickness is approximately 1/4" on 10" and 14" brakes and 3/8" on 18" brakes. |
 The hinge pins on the brake are grease lubricated at the factory. The pins should be sparingly relubricated at the seven fittings using a good grade of light bearing grease that will withstand over 200°F. Wipe off any excess grease.  |
|
The self-centering device on current brakes is adjusted by a 7/16" hex and locked by a 7/8" nut. Turning the hex clockwise moves both shoes to the right. Old style brakes that use an Allen head adjustment should be converted to the current self-centering device by using a J87249 Shoe-Centering Lock Kit. | |
|
To service the brake cylinder, remove boot (11) and separate the cylinder and body (1) from the link and sleeve (10). The pull the piston and guide rod assembly (5-9) out of the cylinder. If inspection of the cylinder bore shows that it is smooth with no pits or scratches, the assembly may be serviced with a repair kit, which includes items 5-9 and 11. If necessary, replace the brake cylinder. Before replacing or repairing the brake cylinder, inspect the cup (8). If it is enlarged or very soft, the system may be contaminated with mineral oil and |
 |
|
must be flushed with brake fluid or denatured isopropyl alcohol. Never flush system or clean parts with gasoline, kerosene, cleaning solvent or lubricant. Prior to reassembly, lubricate parts with brake fluid. Replace cylinder on brake, reconnect hoses and tubing, and rebleed brake system. | |
|
* As of January 1993 brake assemblies and, replacement shoes have bonded linings. These bonded shoes can be rebonded. Additionally rivet type replacement linings can still be purchased for use with old style rivet shoes/linings. | |