Thomas SAR 460 SA G DIGIT, Use And Maintenance Manual

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SAR 460 SA G
13
NOISE TESTS
In accordance with point 1.7.4.f of the Machines Directive EEC 98/37
INTEGRATING PHONOMETER "DELTA OHM" mod. HD9019K1 serial n. 110996B295. MICROPHONE mod. HD 9019S1.
SOUND GAUGER mod. HD 9101 at 94dB/110dB 1.000 Hz in CLASS 1 according to IEC regulation n. 942 1988 and ANSI S1.40 1984
3 measurements with the machine operating unloaded.
- The microphone was been located close to the operator's head, at medium height.
- The weighted equivalent continuous acoustic pressure level was 74,3 dB (A).
- The maximum level of the WEIGHTED instantaneous acoustic pressure C was always less than 130 dB.
NOTE: with the machine operating, the noise level will vary according to the different materials being processed. The user must there-
fore assess the intensity and if necessary provide the operators with the necessary personal protection, as required by Law 277/1991.
FAULT PROBABLE CAUSE REMEDY
12.2 - Electrical components diagnosis
Check: - phases
- cables
- socket
- plug
Voltage must arrive upstream from the
fuses (terminal board).
It must be turned to ON position.
Check electrical efficiency. Check power
line connections and relative terminals.
Check electrical efficiency and check for
shorts that trigger these protections on
the power side of the circuit.
Check closing of the flywheel guard.
Check the efficiency of the device; re-
place it if damaged.
Make sure to have tightened the blade
with the relevant handwheel and to have
actuated the microswitch.
Ensure that it is off and that its contacts
are unbroken.
Check mechanical efficiency; replace if
damaged.
Check that thermal relay protecting main
motor is correctly connected.
Check that the supply voltage is the same
as the line voltage and that it gives a value
of 24 V at output.
Check fuse efficiency and ensure there
are no short circuits causing the protec-
tion on the control side of the circuit.
After having raised the saw frame, check
that the microswitch is not engaged and
if necessary check operating efficiency.
Check that phases are present at both
input and output; ensure that it is not
blocked, that it closes when fed, that it
does not cause short circuits; otherwise
change it.
Check that it is not burnt and that it turns
freely.
It may be rewound or changed.
Power supply
Main disconnect switch
Fuses
" SQ 1 " safety microswitch
Blade tightening microswitch
Emergency button " SB 1 " on
Cycle reset or line button " SB 2 "
Thermal relay of main motor
Transformer " TC 1 "
Fuse " FU 2 - FU 3 "
Microswitch " SQ 2 "
Remote-control switch " KM "
Motor " M 1 "
MACHINE DOES NOT WORK
MOTOR STOPPED WITH PILOT
LIGHT “HL” LIT