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Field Engineering
Maintenance Manual
~~~@ Disk Storage
Field Engineering
Maintenance Manual
Issued to: _ _ _ _ _ _ _ _ _ _ _ __
Branch Office: _ _ _ _ _ _ _ _ _ _ __
Department: _ _ _ _ _ _ _ _ _ _ __
Address: _ _ _ _ _ _ _ _ _ _ _ __
If this manual is misplaced, it should
be returned to the above address.
~~~@ Disk Storage
PREFACE
This manual contains preliminary information. Chapter 1 contains instructions and procedures for
Users of this manual are cautioned that specifications diagnosing and isolating equipment malfunctions by the
are subject to change at any time and without prior use of service aids and functional checkout procedures.
notice by IBM. Wiring diagrams (logics) at the en- Chapter 2 describes switches and controls used by
gineering change level for a specific machine are the CE to accomplish checkout and maintenance oper-
included in each machine shipment. ations.
The scope of this manual is limited to the Disk Chapter 3 contains instructions for performing
Storage Drive. The machine is installed in a stand scheduled maintenance and includes a tabulated sched-
alone unit for IBM 1800 Data Acquisition and Control ule for accomplishing periodic maintenance operations.
System, and is an integral part of the storage system Chapter 4 provides instructions for service checks,
of the IBM 1130 Computing System, physically located adjustments, and removal and replacement of com-
within the IBM 1131 Central Processing Unit. ponents.
This information consists of maintenance instruc- Chapter 5 provides a listing of power requirements
tions which enable the CE to rapidly diagnose equip- and power sequencing.
ment malfunctions in the Disk Storage Drive and Chapter 6 contains information which enables the
perform corrective maintenance to keep the equip- CE to locate components, major assemblies, meters,
ment in a state of readiness for the customer. The gages, etc., which are described by the instructions
CE must have completed prior IBM training for this contained in the manual.
equipment, and must be familiar with practical ap- Chapter 7 consists of a supplement which pro-
plications of the maintenance concept and techniques vides alternate procedures applicable to machines
derived from training. with serial numbers 00001 through 00050.
Alternate procedures are provided in a supple- The companion publication, IBM Field Engineer-
ment in the back of this manual for machines with ing Manual of Instruction 2310 Disk Storage (Form
serial numbers 00001 through 00050. 227-5985-1) provides information for the theory of
Content of this manual is divided into seven operation, and may be used as a reference to augment
chapters. information contained within this manual.
Copies of th is and other IBM publ ications can be obtained through IBM Branch Offices.
Comments concerning the contents of this publication may be addressed to:
IBM, Product Publications Department, San Jose, Calif. 95114