Smiths RVI.1000 SERIES, Инструкция по эксплуатации

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INSTRUCTIONS FOR SPINNING THE BEZEL
Set up the bezel fixture SR/D.140 on a bench with the steel plate and rubber
pad to suit the tachometer; fitted in the ratchet table. Slacken the centre
clamp screw and fit the wooden block over the back of the instrument. Place
the instrument face down on the rubber pad, ensuring that the V bezel is seating
down in the groove. The centre clamp screw can now be tightened down, so that
the instrument is gripped firmly.
Set the ratchet to turn the table clockwise and loosely assemble the spinning
attachment to the left hand pillar.
Slacken the feed screw right back and adjust the height of the spinning
attachment, the wheel should be just above the level of the case flange.
Clamp the spinning attachment tightly to the support, so that the wheel is
almost touching the bezel.
Turn the table by means of the ratchet arm, slowly tightening the feed screw at
the same time. This should be continued until the bezel has been spun over,
if necessary adjusting the height of the spinning attachment.
Slacken the feed screw and centre clamp screw, then remove the instrument. After
spinning proceed to complete the assembly of the tachometer.
FITTING THE PULSE LEAD
Particular care should be taken when fitting the pulse lead assembly. It is
essential that a good electrical connection be obtained at the iron core. Poor
connection is liable to result in intermittent operation of the tachometer,
particularly during high speed motoring when the tachometer is subject to
increased vibration.
Fig.2 Circuit Diagram of Impulse Tachometer
S.10
R. Resistor
C. Capacitor
TR. Transistor
Th. Thermistor
Dz. Zener Diode
M. Meter
a-e
Reference Points