14- ENG
Westward Operating Instructions and Parts Manual
Model 3JR71
Portable Air Compressor
Maintenance
CUSTOMER RESPONSIBILITIES
NOTE:
See Operation section for
the location of controls.
Unit cycles
automatically when
power is on. When performing
maintenance, you may be exposed
to voltage sources, compressed
air, or moving parts. Personal
injuries can occur. Before
performing any maintenance or
repair, disconnect power source
from the compressor and bleed off
all air pressure.
Daily or
after
each
use
Before
each
use
●
●
Yearly
●
1
1- more frequent in dusty or humid conditions
Check Safety Valve
Drain Tank
Air Filter
To ensure efficient operation and
longer life of the air compressor outfit,
a routine maintenance schedule
should be prepared and followed. The
following routine maintenance
schedule is geared to an outfit in a
normal working environment
operating on a daily basis. If
necessary, the schedule should be
modified to suit the conditions under
which your compressor is used. The
modifications will depend upon the
hours of operation and the working
environment. Compressor outfits in an
extremely dirty and/or hostile
environment will require a greater
frequency of all maintenance checks.
TO CHECK SAFETY VALVE
If the safety valve
does not work
properly, over-pressurization may
occur, causing air tank rupture or
an explosion.
1. Before starting compressor, pull
the ring on the safety valve to
make sure that the safety valve
operates freely. If the valve is
stuck or does not operate
smoothly, it must be replaced
with the same type of valve.
Air compressor pump intake
and exhaust valves
●
TO DRAIN TANK
1. Set the On/Auto/Off lever to
OFF.
2. Pull the regulator knob out and
turn clockwise to set the outlet
pressure to zero.
3. Remove the air tool or accessory.
4. Pull ring on safety valve allowing
air to bleed from the tank until
tank pressure is approximately 20
psi. Release safety valve ring.
5. Drain water from air tank by
opening drain valve (counter-
clockwise) on bottom of tank.
Frequently