CLUTCH ADJUSTMENT SUPPLEMENTAL INFORMATION

SUBJECT: CLUTCH ADJUSTMENT (SUPPLEMENTAL INFORMATION)

MODELS: 1990 C5H, C6H, C7H TOPKICK/KODIAKS EQUIPPED WITH 427 GAS ENGINES OR 3116 CAT DIESEL ENGINES (RPO LXO AND LRO;

EATON/FULLER 5 OR 6 SPEED TRANSMISSION (RPO'S MSA, MSC, MPU, MPV, MMO, MKO, MLO, MWO and MW5); AND LIPE 13" DUAL PLATE PULL TYPE CLUTCHES OR LIPE 13" AND 14" SINGLE PLATE PUSH TYPE CLUTCHES.

In order to provide additional information for internal clutch assembly adjustments, copies of Mid- land Heavy Duty Pull Type Clutch Service Manual LL30001 (Rev. 12/89) and Midland Heavy Duty Push Type Clutch Service Manual LL30000 (Rev. 9/89) are attached.

Please update Section 7C of the 1990 Medium Duty Service Manual (X-9033) for TopKick/Kodiak trucks.

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.