Chevrolet Light Duty Truck 1973 Service Manual page 305

1 Primary Piston Seal Cup
2 Primary Piston
3 Cover Seal
4 Reservoir Cover
5 Gasket
6 Cover Bolt
7 Intake Port
8 By-Pass Port
9 Reservoir Housing
7. If necessary, adjust the brake pedal free play as
directed.
. Connect battery ground strap or stop light wires
8
and brake warning switch wire (whichever was
disconnected at removal).
9. Test brakes and make any necessary adjustments if
operation is not satisfactory.
Bleeding Tool (Fig. 72)
A special tool for bleeding the frame mounted booster
master cylinder is shown in Figure 72.
It will be necessary for the technician to install his own
bleeder adapter fitting to this tool. When bleeding the
system, always bleed the frame mounted boosters before
bleeding any wheel cylinders.
BENCH BLEEDING MASTER CYLINDER
1. Install plugs in both outlet ports.
NOTE: Plastic plugs that come with a
4
10 Tube Seat
11 Secondary Piston Return
Spring
12 Secondary Piston Pressure
Cup
13 Floating Secondary Piston
14 Secondary Piston Seal Cup
15 Gasket
Fig. 71--Frame Mounted Booster Master Cylinder
BRAKES
16 Stop Bolt
17 Primary Return Spring
Retainer
18 Primary Return Spring
19 Prim ary Piston Stop Pin
20 Primarv Piston Pressure
Cup
21 Stop Plate
22 Retainer Ring
Fig. 72 -Tool J-23339 Installed
LIGHT DUTY TRUCK SERVICE MANUAL
5 -3 9
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