-20-
Model G0954/55/56/57 (Mfd. Since 11/21)
Do not touch compressor
head or discharge line
during use or immediately
after compressor is active.
These hot parts may cause
burns.
Figure 22. Location of tank pressure gauge and
safety relief valve (G0956 shown).
— If machine turns
OFF when tank pres-
sure reaches cut-out pressure (125 PSI
for G0954/G0955/G0956 and 175 PSI for
G0957), then safety feature of check valve
is working correctly. Proceed to
Step 11.
— If machine does not turn
OFF when tank
pressure reaches cut-out pressure, then
immediately turn
OFF machine and dis-
connect it from power. Safety feature of
check valve is NOT working properly and
must be replaced before using machine.
11. Turn machine OFF and slowly pull safety
relief valve ring to bleed pressure from tank
(see
Figure 22).
— If safety relief valve bleeds pressure, and
air stops leaking when ring is released,
then safety relief valve is working cor-
rectly. Proceed to
Step 12.
— If safety relief valve is stuck or leaks
after releasing ring, immediately turn
OFF
machine and disconnect it from power.
Safety relief valve must be replaced before
using machine.
12. Open drain valve to drain moisture from tank.
13. Repeat Step 1 to check oil level.
Tank
Pressure Gauge
Safety Relief
Valve
Releasing air through safety relief valve
can be loud. Protect hearing with ANSI-
approved ear protection in following step.
7. Move pressure switch lever or knob to AUTO
position to turn machine
ON and verify motor
operation.
Motor should run smoothly and without
unusual problems or noises.
8. After running compressor for 20 minutes,
move pressure switch lever or knob to OFF
position to turn machine
OFF.
9. Tighten drain valve thumb screw and turn
shut-off valve handle to closed position.
10. Turn machine ON and observe tank pressure
gauge (see
Figure 22) while tank fills.
Summary of Contents for G0954
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