W HEEL C YLIN D E R SCRr , , , r
H O L D D O W N P IN -
A R K IN G B R A KE LEVER
HEEL C YLIN D E R
P R IM A R Y SHO E A N D L IN IN G
..O L D D O W N S P R IN G
-A D J U S T IN G SCREW S P R IN G
L— A D J U S T IN G SCREW
-EVE R RETURN SP R IN G S
W HEEL C Y LIN D E R L IN K "
S E C O N D A R Y SH O E & L IN IN G
SHO E G U ID E
P A R K IN G BRAKE STRUT
STRUT S P R IN G
A D JU S TE R LEVER
A C T U A T IN G L IN K
S P R IN G & CUP
BR AKE SH O E RETURN S P R IN G
Fig. 5-43--Typical Drum Brake Assembly
coatings on piston within cylinder and on end o f
link pin removed fro m boot are norm al, as cylinder
contains a porous P IST O N W H IC H IS I M P R E G
N A T E D W IT H A C O R R O S IO N IN H IB IT IN G
F L U ID . Fluid spilling from boot center hole, after
link pin is removed, indicates cup leakage and
necessity for completely over-hauling cylinder.
10.
Inspect backing plate fo r oil leakage past wheel
b e a rin g oil seals. Correct any leak by installation o f new
seals (See Section 4B).
11.
Check all backing plate attaching bolts to make
sure they are tight. U sing fine em ery cloth, clean all rust
an d dirt from shoe contact surfaces on plate.
Relining Brake S h o es
If old brake shoes are to be relined, inspect shoes
for distortion and for looseness between the rim and
web; these are the causes for discarding any shoe. If
shoes are serviceable, be governed by the following
points in installing new linings:
1.
Rem ove old linings by drilling out rivets.
Pu n ch in g rivets out will distort shoe rim. Thoroughly
clean surface o f shoe rim and file off any burrs or high
spots.
2.
Use G M brake lining (or equivalent) and the
rivets included in lining package which are o f the correct
size. The rivets must fit the holes with the solid body o f
rivet extending through the shoe rim, but no farther.
Keep h a n d s clean while han d lin g brake lining.
3.
Start riveting at center o f shoe an d lining and
work toward the ends. Use a roll set for riveting; a star
set m ight split the tu bular end and then the rivet would
not fill the hole. The p rim ary lining is shorter than
secondary lining; therefore, the rivet holes at each end
o f the shoe rim are not used.
4.
A fter riveting is completed, lining must seat
snugly against shoe with no more than .005" separation
m idway between rivets. Check with a .004" (go) and a
.006" (No G o) feeler gage.
Installation and A djustm ent
1.
Lubricate fulcrum end o f p ark in g brake lever
with Delco Brake L ubricant or equivalent, then attach
lever to secondary shoe. Make sure that lever is free
moving.
2.
Connect brake shoes to gether with adjusting
screw spring, then place adjusting screw in position.
W h e n installing the adjusting screw spring an d adjusting
screw, make sure the spring does not touch the starwheel
portion o f the adjusting screw; and, also, w hen installing
adjusting screw, m ake sure right h an d thread adjusting
screw is on left side o f vehicle an d left hand thread
adjusting screw is on right side o f vehicle. Make certain
starwheel lines up with adjusting hole in backing plate.
Содержание 1977 light duty truck
Страница 1: ......
Страница 28: ......
Страница 70: ...Fig IB 24 Four Season System Vacuum Diagram C K Models 1B 24 LIGHT TRUCK SERVICE M A N U A L...
Страница 71: ...Fig lB 25 Overhead System Wiring Diagram C K Models AIR C O N D ITIO N IN G 1 B 2 5...
Страница 72: ...Fig IB 26 C60 System Wiring Diagram G Models...
Страница 74: ......
Страница 75: ...Fig lB 29 Motor Home Chassis Wiring Diagram THERMOSTATIC SWITCH AIR C O N D ITIO N IN G IB 2 9...
Страница 106: ......
Страница 128: ......
Страница 129: ...Fig 2D 5 Typical 05 and 0 6 Vans...
Страница 136: ......
Страница 148: ...Fig 2D 51 Rear Door Controls...
Страница 158: ...Fig 2D 79 Folding Top Assembly...
Страница 159: ...Fig 2D 80 Folding Top Side Moldings and Header...
Страница 161: ...Fig 2D 85 Dnver s Bucket Seat 14 Fig 2D 86 Passenger s Bucket Seat 14...
Страница 162: ...Fig 2D 89 Rear Folding Seat 06 Fig 2D 9 0 Rear Bench Seat 14...
Страница 163: ......
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Страница 190: ......
Страница 225: ......
Страница 226: ......
Страница 248: ...Fig 3B 77 Removing Bearing Housing Pivot Pins Fig 3B 79 Replacing Lock Bolt Spring...
Страница 278: ...C 10 G 10 20 C 20 30 G 30 P 10 30 9 Fig 3C l Front Suspension C P Series...
Страница 284: ...BALL JOINT DIAGNOSTIC PROCEDURE...
Страница 316: ......
Страница 321: ...Fig 3D 12 Rear Spring Installation G Models...
Страница 322: ......
Страница 325: ......
Страница 326: ......
Страница 336: ......
Страница 352: ......
Страница 378: ......
Страница 395: ...Fig 5 2 Front Brake Pipes and Hoses C K Models...
Страница 396: ......
Страница 397: ...Fig 5 4 Front Brake Pipes and Hoses P Models BRAKES 5 1 3...
Страница 400: ......
Страница 401: ...V 8 N 4 0 L 6 N 4 0...
Страница 402: ......
Страница 403: ...fryIvtcwfA POOO 4 2 MODELS lVIEW C K MODELS P 3 0 0 3 2 MODELS G MODELS Fig 5 9 Parking Brake Assembly Typical...
Страница 404: ......
Страница 405: ...P300 42 M40 JB9...
Страница 438: ......
Страница 448: ...Fig 6A 4 P Series Engine Rear Mount...
Страница 451: ...Fig 6A 8 K Series Engine Rear Mount...
Страница 452: ...ENGINE M O U N T BRACKET ALL K SERIES W ITH L 6 ENGINE 6A14 LIGHT TRUCK SERVICE M A N U A L...
Страница 483: ...FUEL PUMP PUSH ROD OILING OIL F LTER AND BY PASS VALVE...
Страница 484: ...FUEL PUMP PUSH ROD OILING CRANKCASE AND CRANKSHAFT OILING VALVE MECHANISM OILING...
Страница 487: ......
Страница 488: ...MOUNT VIEW A V AUTOMATIC TRANSMISSION FRONT MANUAL TRANSMISSION...
Страница 489: ......
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Страница 568: ......
Страница 599: ...CARBON c 5 PILE L VOLTMETER f m s K K K V v D BATTERY RESISTOR TEST AMMETER s S S 5 S V GENERATOR D C...
Страница 602: ......
Страница 605: ......
Страница 612: ...Fig 6D 3i High Energy Ignition Basic W iring...
Страница 644: ......
Страница 647: ...Fig 6E 1 Vacuum Hose Schematic L6 250 CID LD Emissions DISTRIBUTOR PCV VALVE MANIFOLD VAC FITTING...
Страница 648: ...DISTRIBUTOR VALVE Fig 6E 3 Vacuum Hose Schematic L6 292 CID Calif HD Emissions...
Страница 649: ...V A LV E Fig 6E 5 Vacuum Hose Schematic V8 305 CID HD Emissions...
Страница 650: ...Fig 6E 7 Vacuum Hose Schematic V8 350 CID High Altitude Calif LD Emissions...
Страница 651: ...VALVE Fig 6E 9 Vacuum Hose Schematic V8 350 400 CID Except Calif HD Emissions...
Страница 652: ...CANISTER...
Страница 653: ...PCV V AL VE Fig 6E 13 Vacuum Hose Schematic V8 454 CID Except Calif HD Emissions...
Страница 672: ...Fig 6E 29 Air Cleaner 305 350 400 V8 CK...
Страница 682: ......
Страница 691: ...SPECIAL TOOLS n 1 J 25077 1 Vibrator Include Catalyst Container and Fill Tube Extension 2 J 25077 2 Aspirator...
Страница 692: ......
Страница 700: ...Fig 7A 6B Detent Downshift Cable C K and P Series...
Страница 709: ...Fig 7 A 12B CBC 350 Hydraulic Circuit A U TO M A T IC T R A N S M IS S IO N 7 A 1 7...
Страница 743: ...VIEW B FLAT IvEwfDl l6 G tO 2 GAGE...
Страница 744: ......
Страница 755: ...V I E W B WITH AUTOMATIC TRANSMISSION WITH MANUAL TRANSMISSION V I E W A...
Страница 760: ...r...
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Страница 767: ...V I E W D 1 6 ENGINE VIEW V 8 ENGINE...
Страница 768: ......
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Страница 788: ......
Страница 790: ...STOPLAMP SWITCH See Section 5 Brakes of this manual for adjustment and replacement procedures G MODELS...
Страница 794: ...G A S G A U G E...
Страница 805: ......
Страница 836: ...Fig 8 58 Seat Belt Reminder System Schematic...
Страница 844: ...C H E C K n...
Страница 852: ......
Страница 853: ...SPECIAL TOOLS J 2 3 5 2 0...