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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
6 x 3 and 8 x 3 Type H Brake Assemblies

Before installing this brake assembly, please take note:
  1. These instructions show normal floor-mounted installation. The brake may alternately be wall- or ceiling-mounted if necessary.

  2.  
  3. The brake base mounting holes are not equal distances from the brake center. Mounting holes on the anti-drag side are 5-9/16" from the brake pin center. Mounting holes opposite the anti-drag side are 4-15/16" from the brake pin center. Be sure to position the brake over the correct mounting holes.

  4.  
  5. If necessary, the actuator ports may be rotated 180°. Temporarily drive out hinge pin to free actuator.

  6.  
  7. The brake must be installed with the actuator and hinge pins parallel with the brake base. If necessary, reposition brake by forcing against anti-drag friction.

  8.  
  9. The brake was correctly adjusted during factory inspection. Clamp nut A and adjusting nut B may be temporarily backed off to ease installation of brake on brake wheel.

BRAKE INSTALLATION
  1. Install brake wheel.
  2. Slip brake on brake wheel.


  3. With clamp nut A loose, tighten adjusting nut B to clamp brake shoes tight against the brake wheel.
  4. With actuator and hinge pins parallel with base (per item C above), and with brake wheel and brake pin center lines perpendicular, add shims between brake base and brake platform. Attach base with 5/8" bolts.


  5. Using F-17 copper gasket seal, screw short thread end of armored hoses into both actuator ports. Wrench tighten to provide leak-proof hydraulic seals.
  6. Use mounting brackets, lock washers and jam nuts provided to attach free ends of hoses to rigid support. Allow hose slack to permit movement of actuator.

  1. 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 brake wheel per item 3.
  2. Loosen adjusting nut B two and one half turns and tighten clamp nut A.
  3. Both shoes should now be approximately 1/32" from brake wheel.
 
Follow "Brake Adjustment" instructions when readjustment is necessary to compensate for lining wear.