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© 2022, JUN-AIR
We reserve the right to make any alterations which may be due to any technical improvements
Printed in the USA
120 Basic Compressor User Guide
6190760 (Rev A)
OPERATION
•
If the compressor has been stored at an extremely low
temperature, allow it to heat to room temperature before
switching it on .
•
If the compressor is supplied with a receiver, connect equipment
and open the filter regulator on the receiver .
•
Turn on the compressor on the pressure switch .
•
The compressor will automatically stop when the preset cut-out
pressure is reached .
•
If the compressor does not start, there might be pressure in
the receiver . The compressor will automatically start when the
pressure drops .
•
The cut-in and cut-out pressure is preset from the factory and
it is normally not necessary to change this . However, if it is
necessary to change the preset settings, the instructions of this
manual shall be followed carefully .
•
All AC compressors are designed for 100% duty but 50%
operation is recommendable to prolong the lifetime .
•
Do not remove the protection covers during operation as it may
cause electric shock or other personal injury .
•
Do not lubricate the oil-less motor with oil, as it will destroy
important components .
MAINTENANCE
To ensure a long lifetime of the compressor, it is important that
inspection and maintenance is carried out regularly as described in
the following .
Preventive maintenance
Activity
Weekly
Monthly
One a year,
or every
2000 hours
a
Drain condensate
•
b
Check filter regulator
•
c
Check for leaks
•
d
Clean the unit
•
e
Check safety valve
•
f
Check inlet filter
•
g
Check non-return
valve
•
a) Drain condensate
Drain condensate by opening the drain cock on the receiver .
If mounted with auto drain, condensate will be drained
automatically . If drain bottle is installed, empty when necessary .
b) Check filter regulator
If a filter regulator is installed, check weekly and drain for
condensate by pressing the button at the bottom .
If auto drain is installed, the filter will be emptied automatically .
Check and change the filter and filter element in accordance with
the instructions in “Installation and maintenance instructions” for
the filter in question .
c) Check for leaks
Check motor, hoses and equipment for leaks .
Check the pumping time .
d) Clean the unit
Clean the unit when needed with a soft, damp cloth . If necessary,
use paraffin to remove adhesions . Dust and dirt prevent cooling .
e) Check safety valve
Check the safety valve with pressure in the receiver . The safety valve
is operated by pulling the ring (1) or turning the screw (2) depending
on the valve type
.
