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Speedaire
Operating Instructions & Parts Manual
Speedaire
Two-Stage Air Compressors
Maintenance (Continued)
Every 90 Days Or 500 Hours
Maintenance
E
N
1. Change crankcase oil. Use
G
only Speedaire
recip lubricant.
L
I
2. Check entire system for air
S
leakage around fittings,
H
connections, and gaskets,
using soap solution and
brush.
3. Tighten nuts and cap screws
as required.
4. Check and clean
compressor valve plates
as required. Replace
worn or damaged parts.
plates must be replaced in
original positions. Valve plate
gaskets should be replaced
each time valves are serviced.
5. Pull ring on all pressure
relief valves to assure proper
operation.
General Maintenance Notes
Electric Motor:
refer to separate manual or chart
attached to equipment.
Pressure Relief Valve:
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
For Service and Warranty, Call: 1-888-303-1344.
1WD57, 1WD58, 1WD61, 1WD63 thru 1WD65, 13G706 thru 13G709
5 & 7.5 HP
®
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.
Tank Drain Valve:
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.
Automatic Tank Drain:
( Models 4XA61, 4XA62, 1WD57,
1WD58, 1WD63 and 1WD65)
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 pressure
switch unloader activates the
Valve
tank drain.
Pressure Switch:
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. A
pressure switch with an automatic
unloader valve is required for this
For service
compressor.
Belts:
tight enough to prevent slipping.
The
If belts slip or squeak, see V-belt
maintenance in preceding
section.
are too tight, overload will
4XA59 thru 4XA62, 4XA67, 4XA68, 1WD46, 1WD48, 1WD54, 1WD55,
Drain
The pressure
Drive belts must be kept
If belts
10
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 valve plates
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 plate gaskets should
be replaced each time valve sets
.
are removed from pump
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 unloader 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.
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