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  GEMCO Type H & HM Installation, Dimensions
     and Service Manual:

  Type H Brake System
  Type HM Brake System
  General
  Brake Dimensions
  Air-Over-Hydraulic (Type A/H)
     Brake System
  Air-Over-Hydraulic Parking
     (Type A/HM) Brake System
  Type A/H and A/HM General
     Information
  General Troubleshooting
     INSTALLATION
  6 x 3 and 8 x 3 Type H Brake
  10 x 4, 14 x 6 and 18 x 8
     Type H Brake
  Control Cylinder and Pedal
     (including dimensions)
  Fluid Reservoir/Bleeder
     Assembly (incl. dimensions)
  Piping and Wiring Diagram -
     One Brake System
  Piping and Wiring Diagram -
     Two Brake System
  Tubing Installation
     SERVICE
  6 x 3 and 8 x 3 Type H Brakes
  10 x 4, 14 x 6 and 18 x 8
     Type H Brakes
  Control Cylinders
  Fluid Reservoir/Bleeders
 
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 GEMCO Type H & HM Installation, Dimensions and
 Service Manual:
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INSTALLATION INSTRUCTIONS
10 x 4, 14 x 6 and 18 x 8 Type H Brake Assemblies
 
Before installing this brake, note the following features:
  • This brake is suitable for floor mounting only.

  •  
  • The brake shoes are adjusted by nut A and clamped by nut A and clamped by nut B.

  •  
  • A shoe-centering plug is at the base of the shoe arm opposite the brake actuator.

  •  
  • The brake assembly is completely adjusted after inspection at the factory. Adjusting nut A may be temporarily backed off to ease installation of the brake on the brake wheel.

  •  
  • The hydraulic actuator should be installed after brake installation.
BRAKE INSTALLATION

  1. Install brake wheel.
  1. Slip brake on brake wheel.

  2.  
  3. With clamp nut B loose, tighten adjusting nut A to clamp brake shoe tight against the brake wheel.

  4.  
  5. Level brake base by plumbing center of brake wheel shaft to index hole C in base of the brake.

  6.  

     
  7. Add shims between the brake and support. Bolt brake base to support.

  8.  
  9. Install brake actuating cylinder between pins D and E.

  10.  
  11. Using F-17 copper gasket seals, screw short thread end of armored hose into both actuating cylinder ports. Wrench tighten to provide leak-free proof seals.


  1. Use mounting brackets, lock washers, and jam nuts provided to attach free end of hose to rigid support. Allow hose slack to permit movement of actuator.

  2.  
  3. The brake is now ready to be piped into the hydraulic system. Be sure to adjust the brake before operation.
BRAKE ADJUSTMENT
  1. Start with brake shoes clamped tight against the brake wheel per item 3.

  2.  
  3. Loosen adjusting nut A three turns. Tighten clamp nut B.

  4.  
  5. Both brake shoes should now be approximately 1/32" from the brake wheel. If both shoes are not an equal distance from the wheel, adjust self-centering mechanism. (See item C above.)
 
Follow "Brake Adjustment" instructions when readjustment is necessary to compensate for lining wear.