Fulltext TSBs

Technical Service Bulletins

TSB
00-7-4
  • BRAKES – PREMATURE REAR BRAKE PAD WEAR – SEVERE DUTY OPERATION – 17,500 LB F-550 AND ALL F-450 ONLY
Publication Date: MARCH 21, 2000

FORD:
1999-2000 F-450, F-550

ISSUE:

Premature rear wheel inner brake pad wear may occur on some vehicles used in severe duty applications. This may be due to dirt and debris accumulating on the inboard rotor friction surface.

ACTION:

Install an additional shield to reduce the possibility of debris from accumulating on inner rotor friction surfaces. Refer to the following Service Procedure for details.

SERVICE PROCEDURE

1999 F-550 WITH BUILD DATE PRIOR TO 6/15/1998 AND ALL F-450 VEHICLES

NOTE:PROCEDURE TO BE COMPLETED ON BOTH LEFT AND RIGHT HAND SIDE.

  1. Raise and support rear of vehicle.
  2. Remove rear wheels.
  3. Disconnect rear parking brake cable from the rear wheel.
  4. Remove the four (4) bolts holding the production brake dust shield in place.
  5. Remove the production brake dust shield and place on work bench. For additional information, refer to the appropriate Workshop Manual, Section 206-04.
  6. Place the Add-on Shield (XC3Z-2B636-BA) on top of the production brake dust shield. Verify the three (3) raised points of the add-on shield fit into the groove of the production dust shield. Align the add-on shield so that the edges align with the caliper opening on the production shield. Clamp in place with visegrips or comparable device (Figure 1).
  7. Mark the five (5) rivet locations in the production shield using the add-on shield as a template and drill five (5) 4.65-4.90mm diameter holes through the original shield (Figure 2).
  8. Rivet the add-on shield in place onto the production shield using five (5) Rivets (W525106-S427).
  9. Install the production Brake Dust Shield (F81Z-2K004-AA), with the add-on shield attached to it, back on the vehicle using four (4) bolts (N611172-S301). Reference Workshop Manual, Section 206-04 for required torques and proper orientation of shield.
  10. Verify no interference exists with rotor or caliper.
  11. Reattach parking brake cable to wheel end.
  12. Install new Rear Brake Pads (F81Z-2001-CA). Refer to Workshop Manual, Section 206-04.
  13. Install the rear tire and wheel assemblies and torque to proper value specified in Workshop Manual.

1999 MODEL YEAR F-550 (WITH BUILD DATE AFTER 6/15/1998) AND 2000 MODEL YEAR F-550, 17,500 LB GVW ONLY

NOTE:THIS SHIELD IS FOR 1999 F-550 (WITH BUILD DATE AFTER 6/15/1998) AND 2000 MODEL YEAR F-550 VEHICLES EXPERIENCING PREMATURE REAR BRAKE LINING WEAR. SHIELD INSTALLATION IS TO BE DONE ON BOTH LEFT HAND AND RIGHT HAND REAR OF 17,500 LB GVW F-550 VEHICLES ONLY.

  1. Raise and support the rear of the vehicle.
  2. Remove rear tire and wheel assemblies.
  3. Obtain F-450 production Brake Dust Shield (F81Z-2K004-AA) for each side.
  4. Place the Add-on Shield (XC3Z-2B636-BA) on top of the production brake dust shield. Verify the three (3) raised points of the add-on shield fit into the groove of the production dust shield. Align the add-on shield so that the edges align with the caliper opening on the production shield. Clamp in place with visegrips or comparable device (Figure 1).
  5. Mark the five (5) rivet locations in the production shield using the add-on shield as a template and drill five (5) 4.65-4.90mm diameter holes through the original shield (Figure 2).
  6. Rivet the add-on shield in place onto the production shield using five (5) Rivets (W525106-S427).
  7. Install the production shield, with the add-on shield attached to it, back on the vehicle using four (4) Bolts (N611172-S301). Reference Workshop Manual, Section 206-04 for required torques and proper orientation of shield.
  8. Verify no interference exists with rotor or caliper.
  9. Reattach parking brake cable to wheel end.
  10. Install new Rear Brake Pads (F81Z-2001-CA). Refer to Workshop Manual, Section 206-04.
  11. Install the rear tire and wheel assemblies and torque to proper value specified in Workshop Manual.

PART NUMBERPART NAME
XC3Z-2B636-BAAdd-On Shield
F81Z-2K004-AABrake Dust Shield
W525106-S427Rivet
N611172-S301Bolt
F81Z-2001-CABrake Pads

OTHER APPLICABLE ARTICLES:

NONE

WARRANTY STATUS:

Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage

OPERATIONDESCRIPTIONTIME
000704ABInstall Factory F-450 Shield, Add-on Shield, And New Rear Brake Pads – F-5501.3 Hrs.
000704AInstall Dust Shield And New Rear Brake Pads – F-450/5501.4 Hrs.

DEALER CODING

BASIC PART NO.CONDITION CODE
2K00449

OASIS CODES:

301000




Figure 1 – Article 00-7-4




Figure 2 – Article 00-7-4


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