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  Hydraulic Brakes Replacement Parts:
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    Auxilary Components
    Air-Releasing Cylinder
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Air-Over-Hydraulic Panels
Air-Over-Hyd. Panel Components
    Brake Assemblies:
      Type H:    6x3, 8x3, 10x4, 14x6, 18x8
      Type HM: 6x3, 8x3, 10x4, 14x6, 18x8
      Pin Update Information
 
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 GEMCO Hydraulic Brake Systems Parts Manual:
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GEMCO Industrial Brake Systems Replacement Parts
BRAKE ASSEMBLIES
10x4 Type HM Brake, J34780
  

 
Item
No.		 Part Description No.
Used		 Part No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
  Return Spring
 Shoe Arm
 Actuating Cylinder
 6946 Pin
 6943 Pin
 6528 Friction Plug Spring
 6314 Friction Plug
 6942 Pin
 Eye Bolt Bushing
 6939 Eye Bolt & Bushing
 6953 Pin
 Spring Hook
 Spring Hook
 2822 Lever & Bushing
 7/8-14 Clamp Nut
 8287 Adjusting Nut
 6114 Knuckle & Bushing
 Bushing
 Shoe Arm
 Shoe Centering Lock Kit
 2
1
1
1
3
2
4
4
1
1
1
1
1
1
1
1
1
2
1
1
 J8134
J2682
J23437
(1)
(1)
(2)
(2)
(1)
J6940
J10069
(1)
J6945
J6944
J8070
(3)
(3)
J10071
J6941
J2681
J87249
Item
No.		 Part Description No.
Used		 Part No.
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
  Shoe Centering Spring
 Shoe Centering Spring Arm
 286DC Drilled Lining
 Bolt, Nut & Lockwasher
 6108 Shoe & Lining
 Base
 8280 Grease Fitting
 9/16-18 Nut
 9/16 Lockwasher
 HM Park Release Cylinder
 Rod End Assembly
 Pin
 Bracket
 1/2-20 x 1-3/8 Cap Screw
 1/2" Lockwasher
 1/2-20 Nut
 5/16-24 x 1-1/8 Cap Screw
 5/16" Lockwasher
 5/16" Nut
 5/16"-18x1 Allen Head Screw
 1
1
2
16
2
1
7
7
7
1
1
1
1
1
1
1
2
2
2
1
 J8122
J8120
J4954
J233
J6110
J2680
(1)
(1)
(1)
J79463
J7996
J9670
J9665
(4)
(4)
(4)
(4)
(4)
(4)
(4)
 
(1) Order J105197, 10" Hinge Pin Kit
(2) Order J105194, 10" Friction Plug Kit
(3) Order J105192, 10" Clamp Nut Kit
(4) Standard hardware items. Obtain locally.
 		Pin Update: In June of 1992 pin design was changed for 10", 14" & 18" brakes. When ordering new shoes, also order new pin.
 
Note: As of January 1993, brake assemblies and replacement shoes have bonded linings.