E 350 Van L6-300 4.9L VIN E 1-bbl (1982)
Brake Pad: Customer Interest
Rear Brakes - Abnormal Rear Brake Wear
Article No. 83-5-19
BRAKE - REAR - WEAR - AMBULANCE VEHICLES, E & F 250/350 OVER 8500 GVW
LIGHT TRUCKS 1976-82 E-350
Ambulance vehicles that experience unusual rear brake wear should be updated to the 1982 ambulance brake package level using the following
procedure. (1976 through 1982 vehicles may be affected).
Technical Service Bulletin 80-21, Article 80-21-15, dated October 24, 1980 addressed procedures that helped to minimize rear brake wear. This method
is still recommended. Under certain circumstances of severe customer usage involving extremely high loads and frequent stopping (i.e., emergency
vehicles), the following procedure is also recommended.
Perform operation described in Technical Service Bulletin 80-21, Article 80-21-15 and update the front and rear brake systems as follows:
^
Install new front disc brake pad and lining assemblies, D9TZ-2001-A.
NOTE:
Service or replace disc brake rotor assemblies, if required.
^
12 x 3 Inch Brakes - Install new rear brake shoe and lining assemblies (Part Number D7TZ-2200-A).
Color Code:
Secondary 1 green/ 1 red, primary 1 pink/1 yellow right and lefthand.
^
12 x 2.5 Inch Brakes - Install new rear brake shoe and lining assemblies, (Part Number D7TZ-2200-B). Color Code: Secondary 1 white/1 white
primary 1 red/ 1 yellow right and lefthand.
^
Inspect rear brake wheel cylinder; checking cylinder size. Replace 1-1/16 inch diameter R.H. and L.H. wheel cylinder assemblies with 1 inch
diameter R.H. and L.H. wheel cylinder assemblies (D6TZ-2261- A/R.H. and D6TZ-2262-A/L.H.).
^
Replace upper brake shoe retracting spring (green) C6TZ-2296-A with C6TZ-2035-A (red).
^
Replace valve with D9TA-2B524-AA.
^
Bleed hydraulic system as outlined in the 1977-1983 Light Truck Shop Manual.
^
Lining Conditioning Procedure
Owners should be informed that unnecessary brake wear can be avoided only if the following burnish procedure is performed prior to putting an
emergen-
cy vehicle into service:
^
100 moderate snub stops from 40 to 20 mph.
^
10 stops from 60 to 0 mph at 1/2 mile intervals at maximum deceleration without wheel lock-up.
NOTE:
These heavy duty shoe and lining service kits must be used in applications specified in the Ford Light Truck Parts Catalog or the Ford
Technical Service Bulletin specifying mandatory front linings, rear wheel cylinders and installation procedures for vehicles not originally
equipped with these linings.
PART NUMBER
PART NAME
CLASS
D9TZ-2001-A
Front Shoe & Lining Kit
B
D7TZ-2200-A
Heavy Duty Lining Kit 12" x 3"
BM
D7TZ-2200-B
Heavy Duty Lining Kit 12" x 2.5"
B
D6TZ-2261-A
Wheel Cylinder 1.0" RH
A
D6TZ-2262-A
Wheel Cylinder 1.0" LH
A
C6TZ-2035-A
Retracting Spring Rear Brake
A
D9TZ-2B257-A
Valve
C
OTHER APPLICABLE ARTICLES:
81-15-19, 80-21-15
WARRANTY STATUS: Reimbursable within the provisions of the Warranty and Policy Manual.
OPERATION/TIME: Refer to the Labor Time Standards Manual for applicable operation and time.
DLR. CODING: Basic Part No. R2007 Code: 30
