Chevrolet 70 Series 1970, Service Manual

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INTRODUCTION
This manual contains on-the-vehicle maintenance, light repair information,
and unit replacement on all truck series listed on page iv and v. Important
information on the arrangement and use of this manual will be found on
page iii. Operation of the vehicles from the standpoint of the driver is
contained in a separate Owner’s and Driver’s manual which is furnished
with every new Chevrolet Truck.
Every effort has been made to include timely and adequate information on
the various units and systems used on Chevrolet Trucks.The general mainte­
nance and light repair procedures in the various manual sections are the result
of extensive service experience. This information should serve not only as a
reference for the experienced mechanical force, but also as a comprehensive
text for training purposes.
In some cases, considerable space is devoted to describing the operation
of a unit or system. The use of this space is justified by the presumption that
in order for a mechanic to maintain a unit or system in a serviceable con­
dition, he must first understand how the unit or system should function.
All information contained in this manual is based on the latest product
information available at the time o f publication approval. Chevrolet Motor
Division reserves the right to make changes in design or add improvements
at any time without incurring any obligation to install same on vehicles
previously purchased.
TRUCK MODEL DESIGNATION
CHEVROLET SERIES 70-90 HEAVY DUTY TRUCK SHOP MANUAL