Chevrolet 10 Series 1970 Service Manual page 280

BRAKES 5-42
F ig . 7 0 — Brake Tube Support
6. Rem ove cotter pin, nut, washer, and rela y le v e r .
Inspect re la y le v e r bushing.
badly worn bushings.
Support Plate Installation
1. P osition support plate on p ilot o f transm ission re a r
bearin g cap o r re ta in e r and align bolt holes. Insert
fou r bolts and tighten secu rely. (190 ft. lb .).
2. In stall cam shaft in cam shaft bracket. A lign control
le v e r m ark with m ark on cam shaft and in stall control
le v e r . Tighten clam p nut.
3. In stall brake shoe and lining assem blies.
4. Install p ro p e lle r shaft flange at mainshaft as directed
in "T R A N S M IS S IO N " (Sec. 7).
5. R eplace re la y le v e r ,
Tighten nut ligh tly, then back up to fir s t hole and in­
stall new cotter pin. Nut should not be tight enough
to re s tr ic t m ovem ent o f re la y le v e r.
pin through holes in con trol le v e r and link and secure
with new cotter pin.
F i g . 7 1 — H y d ra u lic Brake Tube F la rin g Tool
Replace damaged or
washer, and nut on shaft.
In sert c le v is
HYDRAULIC BRAKE LINES A N D TUBING
H ydraulic Brake Hose
These hoses requ ire no s e rv ic e
inspection fo r damage fro m road hazards o r other like
sou rces. Should damage occur and replacem ent becom e
n ecessa ry, the follow ing procedu re is to be follow ed.
Removal
1. Separate hose fro m steel line by turning double fla re
connector out o f hose fitting.
2. Rem ove " X J" shaped retained spring fro m hose f it ­
ting and withdraw hose fro m support bracket.
3. Turn hose fitting out o f w heel cylin d er inlet o r
junction block.
Installation (Fig. 70)
1. If hose is to be installed in wheel cylin der,
a. Install new copper gasket on cylin d er end o f hose
(m ale end).
b. M oisten threads with brake fluid and install hose
in wheel cylin d er inlet.
2. F o r junction block installations.
a. M oisten threads on m ale end with brake fluid.
b. Turn male end into junction block and tighten
secu rely.
3. With weight o f veh icle on wheels and suspension in
norm al position (fron t w heels straight ahead) pass
fem ale end o f hose through support bracket, allow ing
hose to seek its own position.
fitting into the 12 point hole in support bracket in
position which induces lea st tw ist to hose.
NOTE: Do not tw ist hose unduly during this
operation as its natural curvature is absolutely
n e c e s s a r y to m a i n t a i n
suspension clearan ce through fu ll m ovem ent of
the suspension and steerin g parts.
" V "
4. Install shaped retain er spring to secu re hose in
support bracket.
5. Inspect by rem oving weight com pletely fro m wheel.
If working at fron t w heels, turn steerin g geom etry
fro m lock to lock while observin g hose position. Be
sure that hose does not touch other parts at any tim e
during suspension o r geom etry tra vel.
does occu r, rem ove hose reta in er spring and rotate
the fem ale hose end in the support bracket one o r
F ig . 7 2 —S in g le and D oub le Lap F lare
other than p eriod ic
In sert hex o f hose
p ro p er h o se-to -
If contact
CHEVROLET TRUCK SERVICE MANUAL