Hydraulic Brake Tubing - Chevrolet 10 1971 Series Chassis Service Manual

FUEL LINE
R EA R B R A K E
F R O N T PIPE
Hydraulic Brake Tubing (Figs. 10 thru 14)
Hydraulic brake tubing used on all trucks is a double
layer flexible steel, copper coated and tin plated tubing
which resists corrosion and also stands up under the high
pressures which are developed when applying the brakes.
In making up hydraulic brake pipes, it is important that
the ends of the tubing be flared properly for the compres­
sion couplings. Unless the tubing is properly flared, the
couplings will leak and the brakes will become ineffective.
This safety steel tubing must be double-lap flared at
the ends in order to produce a strong leak-proof joint.
The Tool J-2185 must be equipped with the proper size
die block and upset flare punch for each size tubing to
form the double-lap flare.
The proper size die blocks and upset flare punches are
as follows:
Tubing Size Die Block
3/16' J-2185-27
1/4' J-2185-28
5/16'
J-2185-29
FWD
Fig. 9— Brake Line Retainers - T/pical
Upset Finish
Flare Punch Flare Punch
J-2185-3
J-2185-26
J-2185-37
J-2185-26
J-2185-4
J-2185-26
Fig. 10— Tubing Flaring Tool J-2 185
10-30 CHEVROLET TRUCK SERVICE MANUAL
BRAKES 5-5
R E A R A X L E
B R A K E H O S E