Speedaire 1WD36 Manual De Instrucciones De Operación Y Partes página 9

Speedaire
Operating Instructions & Parts Manual
Models 1WD36, 1WD37, 1WD38,
1WD40, 1WD44
Maintenance (Continued)
General Maintenance
Notes
Electric Motor
: For service
refer to separate manual or chart
attached to equipment.
Pressure Relief Valve
: The
pressure relief valve is an
automatic pop valve. Each valve
is properly adjusted for the
maximum pressure permitted by
tank specifications and working
pressure of the unit on which it is
installed. If it should pop, it will
be necessary to drain all the air
out of the tank in order to reseat
properly. Do not readjust.
Automatic Tank Drain
:
( Models 1WD36, 1WD40,
and 1WD44) The automatic
tank drain is connected to the
bottom of the tank and drains
the condensation every time the
compressor stops. Exhausted air
from the centrifugal unloader
activates the tank drain.
Tank Drain Valve
: Drain
valve is located at bottom of
tank. Open drain valve daily to
drain condensation. Do not open
drain valve if tank pressure
exceeds 25 PSIG. The automatic
tank drain equipped compressor
requires draining manually once a
week.
Pressure Switch
: The
pressure switch is automatic and
will start compressor at the low
pressure and stop when the
maximum pressure is reached. It
is adjusted to start and stop
compressor at the proper
pressure for the unit on which it
is installed. Do not readjust.
For Service and Warranty, Call: 1-888-303-1344
Belts:
Drive belts must be kept
tight enough to prevent slipping.
If belts slip or squeak, see V-belt
maintenance in preceding section.
If belts
are too tight, overload will be
put on motor and motor
bearings
Compressor Valves:
If compressor fails to pump air or
seems slow in filling up tank,
disconnect unit from power source
and remove valves and clean
thoroughly, using compressed air.
After cleaning exceptional care
must be taken that all parts are
replaced in exactly the same
position and all joints must be tight
or the compressor will not function
properly. When all valves are
reinstalled and connections tight,
close receiver outlet valve for final
test. Valve gaskets should be
replaced each time valve sets are
removed from pump.
Centrifugal Unloader And
Unloader Pressure Release
Valve:
The centrifugal unloader
is operated by two governor
weights. It is totally enclosed and
lubricated from the crankcase of the
compressor. When compressor
starts, the governor weights
automatically open compressing the
main spring, allowing the unloader
pressure release valve to close.
When the compressor stops, the
main spring returns the governor
weights to normal position opening
the unloader pressure release valve
and unloading the compressor.
This prevents overloading the motor
when starting. If air continues to
escape through the governor or
unloader pressure release
valve while operating, this is an
indication the unloader pressure
release valve is not closing tightly
9
and may be held open by foreign
substance which has lodged on the
seat. In order to correct this, remove
the governor release valve cap, giving
access to unloader pressure release
valve spring and ball. Clean
thoroughly and return parts in the
same order in which they were
removed. Loose drive belts can also
cause unloader to leak by
preventing the compressor from
reaching proper speed.
(See "BELTS" above.)
Check Valve
: The check valve
closes when the compressor stops
operating, preventing air from
flowing out of the tank through the
pressure release valve. After the
compressor stops operating, if air
continues to escape through the release
valve, it is an indication that the check
valve is leaking. This can be corrected
by removing check valve and cleaning
disc and seat. If check valve is worn
badly, replace check valve.
Before
removing check valve be sure
all air pressure in unit is
released and power is
disconnected. Failure to do so
may result in injury or
equipment damage.
The Interstage Pressure Relief
Valve
is provided to protect against
interstage over pressure and is factory
set for maximum pressure of 75 PSIG.
Do Not Reset
If the pressure relief valve pops, it
indicates trouble. Shut down the unit
immediately and determine and correct
the malfunction. Serious damage can
result if not corrected and can lead to
complete destruction of the unit.
Tampering with the interstage pressure
relief valve, or plugging the opening
destroys the protection provided and
voids all warranty.
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