Speedaire
Operating Instructions & Parts Manual
Models 1WD87, 1WD88, 1WD90
Operation
This compressor has been
inspected, thoroughly tested
and approved at the factory.
For this unit to give long
satisfactory service it must be
installed and operated properly.
This compressor has been designed
for a 80%/ ON – 20%/ OFF duty
cycle.
All models have a pressure switch
that senses changes in receiver
pressure and automatically starts
and stops the compressor at preset
pressure limits.
Models are also equipped with head
unloaders, pilot valve and needle
valve to provide continuous run
capabilities. Continuous run is
recommended if motor starts
exceed 8 starts/hour. To operate
unit in continuous run, open needle
valve located next to pilot valve.
The pilot valve is now able to sense
receiver pressure. When the
pressure in the receiver reaches
170 psi, the pilot valve opens and
air is released to the intake head
unloaders. The compressor stops
compressing air and runs unloaded
until the pilot valve senses the
receiver pressure has dropped to
140 psi. At this time air is released
from the intake head unloaders and
the compressor starts compressing
again.
For Service and Warranty, Call: 1-888-303-1344.
Initial Start Up
1. Pull main disconnect switch
to unit to assure that no
power is coming into the
unit. "Lock Out" or
"Tag Out" switch.
Connect power leads
to starter.
Do not
attempt to operate
compressor on voltage
other than that specified
on order or on motor.
2. Check compressor oil level.
Add oil as required. See
"Compressor Oil
Specifications" Section.
NOTE: Do not mix oil
type, weights or brands.
3. Inspect unit for any visible
signs of damage that would
have occurred in shipment
or during installation.
4. Activate main disconnect
switch.
5. "Jog" motor and check for
proper rotation by direction
arrow. If rotation is wrong,
reverse input connections on
the magnetic starter.
6. Close receiver outlet hand valve
and start.
7
7. With receiver hand valve closed,
let machine pump up to
operating pressure. At this stage
the automatic controls will
take over. Check for proper
cycling operation.
8. This compressor is equipped with
A pressure lubrication system.
The oil pressure gauge is
located on the bearing housing
on the front of the crankcase.
During operation oil pressure
should normally be between
15 PSIG and 30 PSIG.
9. Check for proper operation
of any options. Refer to
individual option
instruction sheet.
10. When the initial run period
has shown no operating
problems, shut unit down and
recheck oil level.
11. Open receiver hand valve. The
air compressor unit is now
ready for use.
This unit can
start automatically without
warning.
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