Schulz SAC MSV 15MAX/250 Manual Del Usuario página 19

CT 18 - MSV 15 MAX/250 - CSV 16 MAX/AD - MSV 20 MAX/AD - CSV 20 MAX/200 - MSV 20 MAX/250 -
MSV 20 MAX/300 - MSV 25 MAX/250 - MSV 26 MAX/250 - MSV 26 MAX/250* - MSV 15 MAX/220V -
MSV 20 MAX/220V - MSV 25 MAX/220V - WTV 20 G/AD - WTV 20 G/220V - WTV 20 G/250 -
ANY PROBABLE
DEFECTS CAUSES
Voltage drop or electricalsupply is out.
Installation does not match NBR 5410.
Damaged electric motor
(burned or defective rotor).
Compressed air retained in the
relief tube or in the aftercooler.
Motor does
not start or
does not
Air returns by check valve.
restart.
.
Thermal protector acted 12
(single phase motor).
Compressor unit is not rotating.
Damaged pressure switch or unfastened
electrical connections 15.1 .
Motor does not
Pressure switch is not regulated.
turn off with
maximum
Damaged pressure switch.
pressure.
Leakage in fittings,
tubing, upper gaskets or
in pneumatics.
Valves do not seal.
Compressor
does not reach
maximum
Air consumption higher than
pressure.
compressor's capacity.
Motor pulley or motor
out of specification.
Oil change did not happen
when recommended.
Lubricant
oil with unusual
color.
Wrong oil.
Water mixed with oil.
Air filter element clogged.
Very high
consumption
of lubricant oil. Oil leakage.
Obstruction of the intake valve.
OBS:
Compressors
usually use
Worn out cylinder or rings.
more oil in the
first 200
working hours
Rings or cylinders with
until rings are
premature wear because
smoothly
of excessive dust.
adjusted.
Wrong oil (low viscosity).
Crankcase oil volume
above specification.
Excessive
Pressure gauge does
pressure drop
not indicate right pressure.
between the
air receiver
Air leakage, obstruction or
and the
tubing wrong dimensions
working place.
(tube's diameter is too small).
Leakage in fittings,
Air receiver's
tubing or upper gaskets.
filling up time
above
specified in
Technical
Data Table.
Valves do not seal.
NOTE: Schulz Compressors S.A. reserves the right to change its products without prior notice.
- Use Schulz originals parts only.
ATTENTION:
- Drawings and dimensional data guidelines only.
- Preserve the environment by not disposing of used oil
TROUBLESHOOTING TIPS
SOLUTION
Check the installation and/or wait for
the electrical supply stabilization.
Send it to an authorized technician.
Relieve the pressure by using the
pressure switch relief valve or replace
14 and 15
it if necessary .
Verify the check valve, clean it or
16, 17 and 57
change kit or valve .
Wait for temperature to stabilize and
reset the thermal protector (If there is
recurrence check the cause).
Replace the damaged components
and put the oil back.
See Technical Data table.
Fasten again the electrical connections
.
or replace the pressure switch 14 and 15
Unplug the motor and regulate
the pressure switch.
Replace the pressure switch.
Change the damaged
components or fasten
6, 7, 8, 9 and 89
fittings .
Adjust or replace
104 and 114
valve plate .
Resize the compressor.
Check the Technical
Data table and make
the substitution.
Use the MS LUB SCHULZ
or WAYNOIL oil.
Change the oil.
118
Change it .
Find it and eliminate it.
Adjust or replace the
valve plate 104 and 114.
Change it 100, 102, 111
e 112.
Replace the parts, check the
causes and eliminate them
to avoid recurrence.
Use the MS LUB SCHULZ
or WAYNOIL oil.
Remove the oil excess (the ideal level
is in the middle of the oil dipstick 96).
36 and 37
Replace pressure gauge .
Eliminate leakage and
obstruction and
re-dimension tubing.
Change damaged parts or fasten
fittings 6, 7, 8, 9 and 89 , and
Adjust or replace valve
plate 104 and 114.
.
WTV 20 G/250* - WV 26 G/250
ANY PROBABLE
DEFECTS CAUSES
Air receiver's
Loose belt.
filling up time
above
specified in
Motor pulley or motor out
Technical
of specification.
Data Table.
Operating in a non-ventilated
area.
Working pressure above
the indicated one.
Motor pulley or motor out of
specification.
Low oil level or wrong oil .
Incorrect rotation direction
(see orientation arrow in flywheel 62).
Overheating.
Too much dust on the
compressor.
Valves do not seal.
Air leakage in fittings,
tubing or upper gaskets.
Air consumption higher
than compressor's capacity.
Filter element clogged.
Loose fastening elements.
Compressor's unit internal
parts are worn out.
Check valve is making noise.
Abnormal
Union broken.
noise or
vibration.
Air receiver foot/base is broken.
Loose belt.
Not aligned pulley/flywheel.
Rotation above specification.
Operating in non-adequate
environment.
Premature
wearing of the
compressor
Recommended oil change
unit internal
interval was not followed.
parts.
Very frequent
Excess of condensed
starts.
water in the air receiver.
Belt premature Not aligned pulley/flywheel.
wearing or belt
does not stay
in pulley/
flywheel
groove.
Belt is not compatible with
pulley/flywheel groove.
Unit transmits
electric current Installation not according
(electric chock).
to NBR 5410.
SOLUTION
Stretch the belt 48 and 49.
Check the Technical
Data table and make
the substitution.
Improve the local conditions.
Adjust the pressure switch and never
operate the equipament above the
maximum working pressure indicated on
the indetification plate.
Check the Technical
Data table and make
the substitution.
Fill and use the oil
MS LUB SCHULZ or WAYNOIL.
Single-phase motor - Invert your cables
5 and 6 or 8.
Three-phase motor - invert any of the
main cables.
Clean the compressor externally.
Replace valve plate104 and 114.
Replace defective components or
retighten connections 6, 7, 8, 9 and 89.
Resize the compressor.
Change it 118.
Find and retighten.
Replace damaged components.
Replace par 16 or valve 17 and 57.
Replate gasket 56
Perform the repair ( do not weld on the body).
Stretch the belt 48 and 49.
Aling pulley/ fly wheel
45, 46, 47, 50, 82, 83 and 83.1 .
Check th Technical Data Table and
replace it
Improve the local conditions.
Changes must happen every
200 hundred working hours or 2
months (whichever occurs first).
Drain the condensate through the vent
25, 77, and 78.
Aling pulley/Fly wheel 45, 46, 47, 50,
82, 83, 83.1 .
Replace the corresponding parts.
Check the installation and make the
necessary adjustments.
JUNE/2017 REV. 06
19
04