Parking Brake
Contents
1. the lining 7 Chamfer the two ends of the lining to reduce noise and grabbing effect Installation 1 Position the brake band over the propeller shaft 2 Install the anchor spring into the recess of the brake anchor 3 Holding the brake anchor spring compressed slide the brake band over the drum and anchor 4 Install the anchor screw finger tight 5 Install the guide bolt and locking bolts 6 Install the adjusting bolt springs and ad justing nut 7 Install the pivot pin through the lever as sembly and spacer Install a new cotter pin 4 Adjustments Before adjusting the parking brake inspect the vertical free play between the brake anchor bracket and the brake anchor Fig 2 If free play exceeds 005 inch brake band distortion may occur when brakes are applied Excessive clearance may be re duced by compressing the anchor bracket in a vise 1 Place the parking brake pedal and lever as sembly in the fully released position 2 Using a feeler gauge adjust the anchor bolt so that the clearance between the lining and the drum is from 015 to 020 inch 8 Install locking wire through the anchor screw NOTE The locking wire should not be drawn tight as it may distort the position of the brake band 4 Adjust the guide screw so there is a slight drag from the bottom half of the brake band 5 Tighten the adjusting nut so that there is only a slight drag from the top half of the brake2. PARKING BRAKE 43 SERVICE PROCEDURES PARKING BRAKE BAND LINING Removal 1 Remove the cotter pin pivot pin and lever assembly Fig 1 2 Remove the adjusting nut bolt and springs 3 Remove the guide screw lock nuts guide screw and springs 4 Remove the anchor screw locking wire and anchor screw 5 Remove the band assembly from the drum and off of the propeller shaft CAUTION Take care not to lose the anchor spring as the band is pulled off of the brake anchor b Relining Brake Band Band Removed If the lining is not already tailored to fit the band the lining must be cut to insure tight adherence to the band Cut the lining 14 inch longer than the in side contour of the band The rivet hole counter bores must be of thickness of the lining 1 Cut off the lining rivet heads and remove the old lining 2 Thoroughly clean the inside surface of the brake band 3 Place the lining within the brake band with the ends of the lining flush with the ends of the band the center of the lining will have a slight hump in it ADJUSTING NUT UPPER CLEARANCE ANCHOR ADJUSTING NUT LOWER CLEARANCE 62 x 289 4 Fig 2 Parking Brake Adjustment 4 Drill and counterbore the end rivet holes and rivet the ends of the lining 5 Compress the hump in the center of the lin ing and force the lining snugly against the brake hand 6 Drill counterbore and rivet the balance of
3. band 6 Apply the parking brake several times and test for excessive dragging when released 44 PARKING BRAKE BRAKE SHOE ANCHOR PIN ___ BRAKE ANCHOR WASHER OUTPUT SHAFT REAR BEARING BRAKE ANCHOR SHOE GUIDE SEAI BRAKE SHOE OPERATING BRAKE SUPPORT LEVER LINK GREASE SHIELD BRAKE SUPPORT GREASE BRAKE SHOE ASSEMBLY SHIELD SPRING BRAKE SUPPORT BRAKE SHOE RETURN SPRING CABLE GUIDE CLAMP BRACKET ASSEMBLY BRAKE SHOE ADJUSTING SLEEVE BRAKE SHOE ADJUSTING SCREW BRAKE SHOE ADJUSTING NUT 53x58 Fig 3 Parking Brake Internal Expanding BRAKE ANCHOR SHOE GUIDE BRAKE SHOE ANCHOR BRAKE ANCHOR WASHER BRAKE SHOE ANCHOR BRAKE SUPPORT GREASE SHIELD BRAKE SUPPORT SPACER oN U BRAKE SHOE OPERATING LEVER LINK BRAKE SHOE amp LINING 55 ZZ BRAKE SUPPORT SHAFT FLANGE amp BRAKE DRUM ASSY 4 f es JES A i se i BRAKE SUPPORT SPACER BRAKE ADJUSTING SCREW COVER d Ly s BRAKE ADJUSTING SCREW COVER SCREW BRAKE SHOE OPERATING LEVER SCREW BRAKE SHOE OPERATING LEVER BRAKE SHOE OPERATING LEVER SCREW LOCKWASHER SHAFT FLANGE WASHER BRAKE SHOE OPERATING LEVER SCREW NUT SHAFT FLANGE NUT BRAKE SHOE ADJUSTING SCREW BRAKE SUPPORT GREASE SHIELD SPRING BRAKE SHOE ADJUSTING NUT BRAKE SHOE RETURN SPRING BRAKE SHOE ADJUSTING SLEEVE 53x3A Fig 4 Parking Brake Internal Expanding Disassembled View PARK
4. column The brake is applied by pressing down firmly on the pedal The brake is released when the T shaped handle is pulled and depressed The pedal and re lease handle are serviced as a unit and need only periodic lubrication A steel enclosed brake cable connects the pedal and release handle assembly to the parking brake located on the rear of the transmission All Chrysler Models equipped with the standard three speed transmission have a 7 inch external con tracting parking brake Fig 1 WASHER SUPPORT 5 7 cal arate WASHER WASHER fai BRACKET SPRING _ EXTERNAL CONTRACTING TYPE PARKING BRAKE The external type parking brake consists of a brake drum bolted to the universal joint flange and an external contracting type band mounted at the rear of the manual transmission Fig 1 The brake lining should be replaced if the lining has worn so that the depth of the rivet counterbore is less than 14 gt inch When relining the parking brake care should be taken not to distort the band from its original shape Parking brake drums should be replaced if the braking surface is worn rough scored or damaged SPRING CLAMP BOLT SCREW ST SPACER a LOCKWASHER 58 ay BOLT i CABLE 7 LEVER arr Sp PIN e LINK on 60x1093 Fig 1 External Contracting Brake Disassembled View
5. strut with the wide slot toward the operating lever and stamped top facing up 4 Work the shoe return spring under the grease shield spring and secure ends in proper holes in webs of shoes as shown in Figure 3 5 Spread the bottom of both shoes apart and in stall the brake shoe adjusting nut screw and sleeve NOTE Install the adjusting nut screw and sleeve in the proper position as shown in Figure 3 If in PARKING BRAKE 45 OPERATING BUSHING AND SEAL x ONTROL CABLE CABLE SPRING SHOE ADJUST SCREW NUT AND SLEEVE BALL END CONTROL CABLE 50x137B Fig 5 Rear View of Internal Parking Brake stalled in the reverse position adjustment would be difficult 6 Place the outer anchor guide over the anchor then attach the shoes with the retaining washer 7 Turn the brake shoe adjusting nut until the shoes are in the fully released position then install the brake drum NOTE Be sure the brake shoes are centered on the backing plate and are free to move 8 Adjust the brake shoes and control cable as outlined below Adjustment 1 Remove the adjusting screw cover plate 2 Turn the brake shoe adjusting nut as shown in Figure 5 to decrease shoe to drum clearance until a slight drag is felt on the drum Back off the ad justing nut at least one full notch using spanner wrench Tool C 3723 or until brake drum is free WASHER PARKING BRAKE PARKING BRAKE LEVER
6. ASSEMBLY uy 62X85 Fig 6 amp Parking Brake Pedal Lever and Cable Assembly Models SC 1 SC 2 SC 3 NUT 46 PARKING BRAKE PARKING BRAKE LIGHT SWITCH 61 161 Fig 7 Parking Brake Pedal and Lever Assembly Models SY 1 Be sure the two raised shoulders on the adjusting nut are seated in the groove on the adjusting sleeve 3 Test the parking brake lever for travel When properly adjusted there should not be more than 314 inches of parking brake pedal travel Never sub stitute a brake shoe adjustment by adjusting the cable 4 Install the adjusting screw cover plate PARKING BRAKE CABLE a Removal Figures 6 and 7 1 Release the parking brake 2 Remove the cable adjusting nut from the end of the cable at the upper end of parking brake lever 3 From the engine compartment remove the upper end of cable from dash panel 4 Loosen the guide clamping bolt at the brake support as shown in Figure 5 then remove the ad justing screw cover plate 5 Pry the ball end of the cable up and out of the operating lever slot with a screwdriver 6 Remove the control cable from the guide clamp bracket b Installation 1 Slide the cable into the guide clamp bracket at the brake support Insert Tool C 3015 between the spring retainer washer and the ball on the end of cable 2 Hook the cable into the slot in the operating lever with the lever between the ball and the wash er as shown in Fi
7. ING BRAKE Internal Expanding Figures 3 and 4 All Models equipped with the automatic transmis sion have a 7 inch internal expanding two shoe park ing brake Fig 3 a Disassembly 1 Disconnect the propeller shaft at the trans mission 2 Engage the holding Tool C 3281 with the companion flange loosen and remove the comnanion flange nut lockwasher and flatwasher 8 Install the puller Tool C 452 on the com panion flange removing flange and brake drum 4 Disengage the ball end of cable from the op erating lever Fig 5 5 Separate the shoes at the bottom allowing the brake shoe adjusting nut screw and sleeve to drop out then release the shoes 6 Pry the brake shoe return spring up and over the right brake shoe pin then work the spring out of the assembly 7 Pry out the brake shoe retaining washer and remove outer guide 8 Slide each shoe out from under the guide spring As the shoes are removed the operating lever strut will drop out of place 9 Separate the operating lever from the right brake shoe by removing nut lockwasher and bolt The brake has now been disassembled as far as necessary for replacement of worn or damaged parts b Assembly Figure 3 1 Assemble the operating lever to the right brake shoe 2 Slide the right and left hand brake shoes un der the guide spring and up on top of the inner anchor guide 3 Spread the shoes and insert the operating lever
8. PARKING BRAKE 41 GROUP 4 PARKING BRAKE CONTENTS Page Data and Specifications 0c ccc ee eee te eee a AAS 1 External Contracting Type Parking Brake 2 Parking Brake Band Lining nran aia 3 Parking Brake Internal Expanding 5 Parking Brake Cable a E AE 6 Service Diagnosis a hin i a EAE TS EE 6 DATA AND SPECIFICATIONS Type s cadet cee cad EE TENT EL EE Internal Expanding External Contracting Manual Transmission Location errepi anai a maea Propeller Shaft at Rear of Transmission Drtim Diameter dae Spe danas 7 inches Lining size reis denan I Internal Moulded Asbestos WHEE a apne 2 inches Thickness 5 inches Clearance Ducane sees 015 to 020 inches TIGHTENING REFERENCE Foot Pounds Inch Pounds Parking Brake Cable Bracket Clamp 20 Parking Brake Lever to instrument 20 Parking Brake Adjusting Bolt Cover 130 Transmission Shaft Flange Bolt Nut 45 5 0 eee eee reece eee eee 95 42 PARKING BRAKE GROUP 4 PARKING BRAKE The foot operated parking brake pedal and release handle is located to the left of the steering
9. e Chattering a Improper brake or cable adjust a Adjust brake and cable ment b Oil soaked lining b Replace transmission oil seal and brake shoes Worn or distorted brake lining Replace brake shoes d Loose anchor pin d Replace anchor pin e Scored or cracked drum e Replace brake drum
10. en brake shoe return spring b Replace brake shoe return spring PARKING BRAKE 47 SERVICE DIAGNOSIS CONT D Condition Possible Cause Correction c Broken brake support spring c Replace brake support spring 4 Oil soaked brake lining 4 Replace transmission oil seal and brake shoes e Bent or distorted drum e Replace brake drum Bent or broken brake shoe f Replace brake shoe Frozen brake pedal assembly Lubricate and free up brake pedal assembly Overheating Brake Improper cable or brake adjust a Adjust brake shoes and cable ment Broken or misaligned brake sup b Replace or align brake support spring port spring c Broken or disconnected brake c Replace or align brake shoe return spring 4 Missing brake shoe anchor retain d Install new brake shoe retaining ing washer washer e Bent or distorted drum e Replace brake drum f Bent or broken brake shoe f Replace broken brake shoe g Frozen brake pedal assembly g Lubricate and free up brake pedal assembly Brake Grabbing a Improper brake or cable adjust a Adjust brake and cable ment 0 Oil soaked brake lining b Replace transmission oil seal and brake shoes Clean off drum Loose brake drum c Tighten brake drum d Loose or broken anchor pin 4 Replace anchor Warped or bent brake drum Replace brake drum Scored or cracked brake drum Replace brake drum Brak
11. gure 5 The cable must be installed so that the cable conduit is not pulled taut between any of the fastening points To provide free cable operation care must be used to prevent kinking of the housing also all bends must have a radius of 6 inches or more 3 Route cable from transmission up the front of dash panel 4 Install the plastic seal and washer on the cable Fig 4 and insert the cable through dash panel opening 5 Install the housing retainer 6 Insert the threaded end of the cable in the pedal trunnion depress the foot pedal to do so re turn foot pedal to released position and install the cable adjusting nut 7 Tighten the cable adjusting nut so that the nut is seated on the trunnion without pulling any additional cable through the dash panel 8 After the adjustment has been completed apply and release the foot pedal several times Then when fully released check to insure that the cable adjusting nut is seated on the trunnion Readjust if necessary 9 To check for correct adjustment apply ap proximately 60 pounds foot pressure on the pad and measure pedal travel The travel at the pad should not be more than 314 inches With the foot pedal fully released the parking brake must release and the propeller shaft revolve freely SERVICE DIAGNOSIS Condition Possible Cause Correction Dragging Brake ment a Improper cable or brake adjust Adjust brake shoes and cable Brok
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