GMC 4000 Series Service Manual page 213

Sec. 5A
Page 206
HYDRAULIC BRAKES
TRUCK SERIES
T y p e ................................................................
A d ju stm e n t....................................................
S iz e.................................................................
Lining W id th..................................................
Lining T h ic k n e ss..........................................
Lining A rea— Sq. In. per a x le . ...................
TRUCK SERIES
T y p e ................................................................
A d ju stm e n t....................................................
S iz e.................................................................
Lining W id th..................................................
Lining T h ick n e ss...........................................
Lining A r e a - S q . In. per a x le ....................
TRUCK
SERIES
LV4000
LA4000
4500
E5500
S5500
E6500
S6500
*M aster cylinder is part of dash mounted booster
STANDARD
MODEL OR
NO.
OPTIONAL
C-4055 Std.
Opt.
C-4056 Opt.
C-4074-A
Opt.
Std.
Std.
C-4074-B Opt.
Opt.
C-4074-C Std.
Opt.
C-4090 Std.
Std.
2504183 Std.
(A ir operated) Std.
G M C S E R V I C E M A N U A L
SPECIFICATIONS
FRONT BRAKES
REAR BRAKES
B R A K E C O N T R O L S
Wheel Cylinder Bore
Front
P/s"
P/a"
7 /s"
/%"
Vs"
P/s"
'P /4 "
POWER CYLINDERS
TYPE
TRUCK OF
SERIES MOUNT
LV4000 Remote
P4500
LV4000 Remote
E4500 (C o nv.) Dash
E5500 (C o nv.)
E6500
E5500 Dash
E6500
E5500 (C o w l) Dash
E4500 (C ow l)
Remote
S5500
S6500
LA4000 Remote
DLA4000
4500 L4000
5500 E6500
Duo-Servo " F "
Automatic Manual
IV i
14 x 1 5 x 3
21 / ?" 3"
" V Vie
32
136.1 199.0
All Except
6500 E6500
Twin-Action " FR-3"
Automatic Manual
1 5 x 4 1 5 x 6
4" 6"
W Vz"
249.0 379.6
Master
Rear
Cyl. Bore
P/ "
P/4"
2
P/ "
P/
2
P/ " P/
2
P/2"
lVz"
P/s"
P/s" P/
OVERALL CYLINDER
DIAMETER BORE
11.7"
.84"
.84"
11.7"
11.7" .91"
11.7"
.97"
11.7"
.91"
13.0"
.97"
4.625" 1.125"
SG500
" FA "
Automatic
1 5 x 3
3"
.31"
199.0
S6500
" FR-3A"
Automatic
1 5 x 6
6"
Vz"
379.6
"
2
"
4
*
l 3 / 4"
*
"
4
POWER HYDRAULIC
DIAPHRAGM
PISTON
STROKE STROKE
_
3.00"
—
4.40"
4.75" 4.50"
4.75" 4.50"
4.75" 4.50"
_
4.45"
3.90"
3.75"