BENDIX TCH-003-052 Manuel d'utilisateur télécharger pdf

Technical Bulletin

Bulletin No: TCH-003-052 Effective Date: 11/4/2008 Cancels: N/A Page: 1 of 1

Subject:

Excessive Wear of E-7

™

Brake Pedal Components

Vehicles operating in extreme duty commercial vocations, such as refuse and transit, may experience accelerated

wear of brake pedal components when the recommended routine maintenance is not performed. The wear may be

compounded with the use of high-offset brake pedals that increase the side-load forces into the pedal assembly.

Bendix Commercial Vehicle Systems LLC recommends a consistent 3-month, 25,000-mile, or 900 operating hour

maintenance schedule for the brake pedal and mounting plate components. Please refer to service data sheet

SD-03-818 for detailed maintenance requirements.

Inspect the pedal to see that all cotter pins, rollers, roller pins and fulcrum pins are in place. Excessively

worn, damaged or missing components should be replaced before operating the vehicle. To identify if the pedal

components are excessively worn, grab the pedal at the foot pad and push side to side. If the pedal has movement

over .250 inches then the pedal, mounting plate, and fulcrum pin, should be replaced.

Other signs of wear that will require inspection are deterioration of the boot, plunger wear, and wear in the mounting

plate at the fulcrum pin holes. If the wear is excessive, the fulcrum pin holes become oval in shape. The plunger

bore and fulcrum pin holes should always be liberally coated with barium grease. These parts may require more

frequent lubrication if the vehicle’s interior is regularly pressure washed as part of a maintenance program.

On high-offset pedal applications, the cotter pin that retains the fulcrum pin can become damaged. This can be

identiﬁ ed by wear marks on the side of the mounting plate. To maximize the life of the cotter pin, the fulcrum pin

should be installed such that the cotter pin is located on the same side of the mounting plate as the brake pedal

pad. See illustrations below.

Mounting Plate

Cotter Pin

Brake Pedal Pad

Rollers

Plunger

Cotter Pin

Fulcrum Pin-

Installed in the

direction of the

Pedal Pad

Fulcrum Pin -

Installed in the

direction of the

Pedal Pad

Plunger

E-7

™

BRAKE VALVE ASSEMBLIES

Pedal Offset

Technical Bulletin 1

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Page 1 - Technical Bulletin

Technical BulletinBulletin No: TCH-003-052 Effective Date: 11/4/2008 Cancels: N/A Page: 1 of 1Subject: Excessive Wear of E-7™ Brake Pedal Component

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