CHAPTER 1

INTRODUCTION

1-1. GENERAL
These instructions are for use by the owner/operator. They apply to
handling and operation of the TI4676 Micro Power Unit (MPU).
1-2. WARNING, CAUTION, AND NOTE DEFINED
A warning, caution, or note is used to emphasize important and critical
instructions as defined for the following conditions:
WARNING
An operating procedure, practice, etc., which,
if not correctly followed, could result in
personal injury or loss of life.
CAUTION
An operating procedure, practice, etc., which,if not
strictly observed, could result in
damage to or destruction of equipment.
NOTE
An operating procedure, condition, etc., which
is essential to highlight.
1-3. DESCRIPTION
This manual contains the complete operating instructions and procedures
for the TI4676 MPU. The TI4676 is intended to provide an on-board bat-
tery along with DC electrical ground power for aircraft systems and
maintenance ground support operations. The unit is designed to provide
24 volt DC electrical power output for aircraft engine starting and 24
or 28.5 volts DC electrical support for ground maintenance, avionics/
electrical trouble shooting and testing. The unit also has a built in
capacity tester (push to test button), and recharge rate indicator. The
TI4676 MPU has a internal, independent, intelligent recharger that will
enable the MPU to be rapidly recharged from either the aircraft genera-
tor or any 120-240 50/60 Hz VAC common power source. The observance
of procedures, limitations and performance criteria is essential to
ensure peak operating efficiency and to maximize operational capabili-
ties and life of the TI4676 MPU.
1-1