Chevrolet 70 1969 Series, Shop Manual

Page: 206 / 913

BRAKES 5A - 13
Figure 11— Power Cylinder Air Cleaner Installed (Tilt Cab)
2. Clean away as much road dirt grease as
possible to prevent contamination of vacuum or
hydraulic systems.
3. Have suitable container available to catch
hydraulic brake fluid which will flow from system.
D O N O T RE-USE THIS F L U ID .
4. Disconnect all hydraulic, vacuum and at­
mospheric lines and hoses from power cylinder.
5. Remove bolts and nuts which fasten cylin­
der to vehicle frame and support brackets. Remove
power cylinder.
IN S T A L L A T IO N
1. Place power cylinder in position and fasten
with nuts and bolts to vehicle frame and support
brackets.
2. Connect all hydraulic, vacuum, and atmos­
pheric lines and hoses to power cylinder.
Revised i 9 6 8
Figure 12— Power Cylinder Air Cleaner Installed (Conv. Cab)
3. Bleed master cylinder and vacuum power
cylinder as directed under "Bleeding Brakes" in
this manual. If O N L Y the power cylinder has been
removed, it should not be necessary to bleed the
wheel cylinders IF the master cylinder and power
cylinders are bled first A N D lines to wheel cylin­
der have not been disturbed.
4. Start engine and test operation of brake sys­
tem as directed. Refer to "Trouble-Shooting" chart
in this section if operation is not satisfactory.
VACUUM POWER CYLINDER
AIR CLEANER
The air cleaner used on all the models is
a plastic encased, synthetic element type filter
and cleaning is N O T recommended. When cleaner
CHEVROLET SERIES 70-80 H EAVY DUTY TRUCK SH O P M A N U A L