BRAKES 5-17
F ig . 3 1 —Parking Brake Hand Lever—T-M odels
displacement requirements for each vehicle line. There
fore, it is necessary that correct parts be used when
replacing either complete main cylinder assemblies or
the component pistons of these assemblies.
There are two sources for dual main cylinders used on
1968 Chevrolet vehicles: Delco Moraine and Bendix. The
Bendix unit can be readily identified by a ‘Secondary
Piston Stop’ bolt on the bottom of the casting. Delco
Moraine main cylinders do not have this bolt. (See
chart.)
The displacement capabilities of a particular cylinder
are specified by the two letters which are stamped in the
metal on the top of the closed end of the main cylinder
barrel.
Main cylinders should only be replaced with
a n o t h e r cylinder b e a r i n g the s a me two-letter
identification.
The length of the secondary pistons in these main cyl
inders is a critical factor in the displacement capabilities
of a particular main cylinder. These secondary pistons
are coded, using rings or grooves in the shank or center
section of the piston. Refer to the chart below for proper
identification.
The primary pistons are of two types. One has a deep
socket for the push rod and the other a very shallow
socket.
It is mandatory that replacement pistons be identical
to the original piston. This can be verified by checking
the identification marks on the secondary piston and the
socket contour of the push rod end of the primary
piston. (See Chart below).
Model
Source
Brake Type
Master
Cylinder
Code
Secondary
Piston
Identification
Light
Trucks
Delco
Moraine
Manual-Drum
AB
4 Rings
or Grooves
Bendix
Power Drum
AB
3 Rings
Delco
Moraine
Manual-Drum
NF
5 Rings
or Grooves
Bendix
Manual-Drum
NF
2 Grooves
Power -Drum
NF
5 Rings
BRAKE MAIN CYLINDER IDENTIFICATION
CHEVROLET TRUCK SERVICE MANUAL
Содержание 10 Series 1968
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Страница 52: ...HEATER AND AIR CONDITIONING 1A 21 Fig 32 Charging Schematic CHEVROLET TRUCK SERVICE MANUAL...
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Страница 128: ...BODY IB 61 Fig 135 A uxiliary Seat CHEVROLET TRUCK SERVICE MANUAL...
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Страница 133: ...Fig 5 4 0 6 0 Single A xle Truck Frame E x c Tilt Cab...
Страница 135: ...Fig 7 4 0 6 0 Series Tilt Cab Truck Frames...
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Страница 223: ...REAR SUSPENSION AND DRIVE LINE 4 54 Fig 101 Forward Rear Axle Assembly Exploded View CHEVROLET TRUCK SERVICE MANUAL...
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Страница 248: ...BRAKES 5 15 TD 50 60 Fig 26 Parking Brake Cables T Models CHEVROLET TRUCK SERVICE MANUAL...
Страница 299: ...BRAKES 5 56 Fig 88 Frame Mounted Vacuum Single Diaphragm Power Brake Installation CHEVROLET TRUCK SERVICE MANUAL I...
Страница 331: ...BRAKES 5 88 Fig 126 Stopmaster Brake Components Automatic Adjuster with Fail Safe CHEVROLET TRUCK SERVICE MANUAL...
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Страница 398: ...ENGINE FUEL 6M 5 Fig 7 C Throttle Linkage GS100 200 Fig 8C Throttle Linkage GE100 200 CHEVROLET TRUCK SERVICE MANUAL...
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Страница 411: ...ENGINE FUEL 6M 18 Fig 18A V 8 Typical CHEVROLET TRUCK SERVICE MANUAL...
Страница 412: ...ENGINE FUEL 6M 20 ENGINE FUEL 6M 19 Fig 21 A CE100 200 With Heat Stove CHEVROLET TRUCK SERVICE MANUAL...
Страница 413: ...ENGINE FUEL 6M 20 Fig 2 2 A C S K A 1 00 200 CS300 With Heat Stove CHEVROLET TRUCK SERVICE MANUAL...
Страница 414: ...ENGINE FUEL 6M 21 Fig 25A CS PS SS400 CS M S SS500 CS600 TSOOO With Heat Stove CHEVROLET TRUCK SERVICE MANUAL...
Страница 470: ...CLUTCHES AND TRANSMISSIONS 7 7 Fig 14 Clutch Linkage Exploded View CHEVROLET TRUCK SERVICE MANUAL...
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Страница 549: ...STEERING 9 16 KA 10 20 CE ME SE 50 CE SE 60 Fig 29 Typical Power Steering Hose Routing CHEVROLET TRUCK SERVICE MANUAL...
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Страница 583: ...CHASSIS SHEET METAL 11 12 Fig 20 Designation and Name Plate CHEVROLET TRUCK SERVICE MANUAL...
Страница 585: ...CHASSIS SHEET METAL 11 14 SPECIAL TOOLS Fig 24 J 5544 1 Hood Spring Remover CHEVROLET TRUCK SERVICE MANUAL...
Страница 587: ...ELECTRICAL BODY AND CHASSIS 12 2 Fig 1 Fuse Panel CHEVROLET TRUCK SERVICE MANUAL...
Страница 591: ...ELECTRICAL BODY AND CHASSIS 12 6 CA SA MA 50 60 CHEVY VAN Fig 9 Front Lighting Assemblies CHEVROLET TRUCK SERVICE MANUAL...
Страница 596: ...ELECTRICAL BODY AND CHASSIS 12 11 Fig 15 Electrical Components Conv Cab CHEVROLET TRUCK SERVICE MANUAL...
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Страница 622: ...ELECTRICAL BODY A N D CHASSIS 12 37 IGNITION SWITCH Fig 44 Engine Compartment PA20 30 CHEVROLET TRUCK SERVICE MANUAL...
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Страница 633: ...ELECTRICAi BODY A N D CHASSIS 12 48 Fig 55 Engine Compartment SE50 60 02 62 CHEVROLET TRUCK SERVICE MANUAL...
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Страница 698: ...SPECIFICATIONS 12 ENGINE TORQUES CHEVROLET TRUCK SERVICE MANUAL...
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