CAMPAIGN: PARK BRAKE LEVER MIS-INDEXED REPOSITION LEVER
SUBJECT: PARKING BRAKE REACTION LEVER MIS-INDEXED
MODEL: 1990 C7H TOPKICK/KODIAK TRUCKS WITH FULLER 5106 (RPO MMO) OR 6106 (RPO MLO, MKO) TRANSMISSION, AND HYDRAULIC BRAKES (JE3) WITH TRANS- MISSION MOUNTED PARKING BRAKES
CONTENTS OF THIS BULLETIN SENT TO DEALERS VIA DCS MESSAGE ON JANUARY 16, 1990.
General Motors has determined that certain 1990 C7H TopKick/Kodiak trucks with Fuller 5106 (RPO LMO) or 6106 (RPO MLO, MKO) transmission, and hydraulic brakes (JE3) with transmission mounted parking brakes may have parking brakes with mis-indexed reaction levers. The parking brake will function normally even with the mis-indexed lever. However, over time, if the parking brake shoes wear significantly the lever has the potential of becoming disengaged from its retaining tangs. Disengagement would cause some reduction in parking brake effectiveness.
To correct this condition, it will be necessary to reposition the reaction lever.
VEHICLES INVOLVED
Involved are certain 1990 C7H TopKick/Kodiak trucks with Fuller 5106 (RPO MMO) or 6106 (RPO MLO, MKO) transmission, and hydraulic brakes (JE3) with transmission mounted parking brakes. VIN's and dealer codes are listed below:
DEALER CODE VIN
48-30232 1GDL7H1J2LJ601323 48-18003 1GDL7H1J4LJ601341 48-30479 1GDL7H1JXLJ601358 48-26061 1GDL7H1J1LJ601362 48-53528 1GDL7H1J4LJ601372
48-30437 1GDL7H1JXLJ601389 48-21317 1GDL7H1J6LJ601390 48-21686 1GDL7H1J5LJ601400 48-42296 1GDL7H1J0LJ601403 48-42076 1GDL7H1J6LJ601406 48-51217 1GDL7H1J7LJ601432 48-21718 1GDL7H1J9LJ601450 48-21317 1GDL7H1J7LJ601463 48-18104 1GDL7H1J9LJ601478 48-30196 1GDL7H1J3LJ601489 48-26120 1GDL7H1J3LJ601492 48-10284 1GDL7H1J2LJ601497 48-30479 1GDL7H1J4LJ601498 48-21718 1GDL7H1J0LJ601515 48-21319 1GDL7H1J4LJ601517 48-26061 1GDL7H1J1LJ601524 48-51080 1GDL7H1J2LJ601533 48-21718 1GDL7H1JXLJ601540 48-40155 1GDL7H1J8LJ601553 48-44555 1GDL7H1J1LJ601586 48-18084 1GDL7H1J3LJ601640 48-30088 1GDL7H1J2LJ601676 48-10299 1GDL7H1J9LJ601688 48-18293 1GDL7H1J9LJ601707 48-30200 1GDL7H1J3LJ601718 48-51002 1GDL7H1J7LJ601723 48-30493 1GDL7H1J4LJ601727
48-42247 1GDL7H1J0LJ601742 48-44108 1GDL7H1JXLJ601750 48-10593 1GDL7H1J1LJ601765 48-40001 1GDJ7H1J7LJ601776 48-42276 1GDL7H1JXLJ601778 13-20088 1GBL7H1J4LJ200834 13-44388 1GBL7H1J1LJ200905 13-16386 1GBL7H1J6LJ200978 13-08422 1GBL7H1J6LJ200981 13-59001 1GBL7H1J0LJ200989 13-48055 1GBL7H1J2LJ201013 13-17057 1GBL7H1J4LJ201014 13-13313 1GBL7H1J3LJ201022 13-44016 1GBL7H1J7LJ201024 13-11580 1GBL7H1J9LJ201042 13-13313 1GBL7H1J2LJ201075 13-44384 1GBL7H1J6LJ201077 13-20039 1GBL7H1J3LJ201084 13-09698 1GBL7H1J3LJ201098 13-09657 1GBL7H1J1LJ201102 13-07009 1GBL7H1JXLJ201115 13-03345 1GBL7H1J9LJ201123 13-07009 1GBL7H1J1LJ201133 13-30406 1GBL7H1J5LJ201152 13-30406 1GBL7H1J6LJ201158
The specific vehicles involved in this campaign have been identified by Vehicle Identification Number Computer Listings. These listings are furnished to all involved dealers with the campaign bulletin.
DEALER CAMPAIGN RESPONSIBILITY
Dealers are to service all vehicles subject to this campaign at no charge to owners, regardless of mileage, age of vehicle, or ownership, from this time forward. Dealers are to correct all affected vehicles in new and used vehicle stock prior to their sale.
Whenever a vehicle subject to this campaign is taken into your new or used vehicle inventory, or it is in your dealership for service in the future, you should take the steps necessary to ensure the campaign correction has been made before reselling or releasing the vehicle.
Owners of vehicles recently sold from your new vehicle inventory are to be contacted by the dealer and arrangements made to make the required cor- rection according to instructions contained in this bulletin.
If no owner's name and address were available to GMC Truck Division at the time of campaign initiation, the dealer will determine the owner's name and address from the dealership sales records. Please provide this information directly on the second copy of the listing next to the applicable VIN so that our records may be updated and the appropriate notification mailed to the owner. This second copy should then be submitted to the address listed below in the previously supplied yellow campaign envelopes.
GMC Truck Division General Motors Corporation 101 Union Street Plymouth, Michigan 48170
OWNER NOTIFICATION
Owners will be notified of this campaign on their vehicles by GMC Truck Division (see copy of owner letter included with this bulletin). A listing of owner names and addresses has been furnished to the involved dealers to enable dealers to follow up with owners involved in this campaign. This testing may contain owner names and addresses obtained from State Motor Vehicle Registration records. The use of such motor vehicle registration data for any other purpose is a violation of law in several states. Accordingly, you are urged to limit the use of this listing to this campaign.
SERVICE PROCEDURE
All involved units must be inspected for the condition and corrected if necessary. It will be necessary to perform the following procedure:
1. Disconnect and remove drive shaft and yoke from transmission.
2. Remove park brake drum.
3. Remove and re-install reaction lever so pin on backside of lever is positioned into "pin pocket" (smaller 1/2 round cut out) not "cam pocket" (about 1-7/8" long) on brake shoe web. (NOTE: Pin pocket is located between the 9 and 10 o'clock position). Be sure lever ends are under both tangs on each brake shoe web.
4. Install brake drum - torque brake drum bolts 37 Nm (27 lb. ft), yoke and reconnect drive shaft-torque drive shaft retainer bolts 15O Nm (111 lb. ft).
5. Check and adjust parking brake as required. Reference service procedure in GMC Truck TopKick/Kodiak Service Manual X-9033, Section 5C-6.
PARTS INFORMATION
No parts are required.
WARRANTY INFORMATION
Dealers should submit an accurately filled out Warranty Repair Order on each vehicle completed under this campaign.
LABOR OPERATION *TIME TROUBLE NUMBER DESCRIPTION ALLOWANCE CODE
V5850 Reposition .6 Hr. 96 Reaction Lever
* For dealer to receive Administrative Time Allowance associated with this campaign, add 0.1 hour to the Labor Operation Time Allowance.
CAMPAIGN IDENTIFICATION LABEL
Each vehicle corrected in accordance with the instructions outlined in this product campaign bulletin will require a "Campaign Identification Label." Each label provides a space to include campaign number and the five (5) digit dealer code of the dealer performing the campaign service. This infor- mation may be inserted with a typew-riter or ball point pen.
Each "Campaign Identification Label" is to be located on the radiator core support in an area which will be visible when the vehicle is brought in for periodic servicing by the owner.
Apply "Campaign Identification Label" only on a clean, dry surface.
ADMINISTRATIVE PROCEDURE
Procedures covering this campaign are outlined in Section V of your dealership's "GM Truck Claims Processing Manual" #P 8919.
Dear GM Owner:
General Motors has determined that certain 1990 C7H TopKick/Kodiak trucks with Fuller 5106 (RPO MMO) or 6106 (RPO MLO, MKO) transmission, and hydraulic brakes (JE3) with transmission mounted parking brakes may have parking brakes with mis-indexed reaction levers. The parking brake will function normally even with the mis-indexed lever. However, over time, if the parking brake shoes wear significantly the lever has the potential of becoming disengaged from its retaining tangs. Disengagement would cause some reduction in parking brake effectiveness.
To correct this condition, it will be necessary to reposition the reaction lever. This service will be provided for you at no charge.
Please contact your GM Truck dealer as soon as possible to arrange a service date. Instructions for making this correction have been sent to your dealer. Please ask your dealer if you wish to know how much time will be needed to schedule, process and repair your vehicle.
The enclosed postage paid owner reply card identifies your vehicle. Presentation of this card to your dealer will assist in mailing the necessary correction to your vehicle in the shortest possible time. If you have sold or traded your vehicle, please furnish us complete name and address of the person you sold or traded your vehicle to and return the card to US.
We are sorry to cause you this inconvenience; however, we have taken this action in the interest of your continued satisfaction with our products.
General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.
