TM 55-1930-209-14&P-7
I.
Push controller START button (Figure 3-1).
WARNING
Never allow air pressure to reach more than 155 psi as shown on receiver pressure
gauge.
m.
When receiver pressure gauge reads 155 psi, push controller STOP button.
n.
Open main supply valve by turning handle parallel with pipe (Figures 3-2, 3-3).
o.
Set pressure regulators 1 and 2 by turning adjusting screw on bottom of regulators to obtain 40 psi Turn clockwise
to decrease air pressure beyond regulator and turn counterclockwise to increase air pressure beyond regulator.
p.
Turn AUTO-MANUAL switch to AUTO Compressor now automatically turns on and off to maintain air pressure In
the system.
3-2.2
Startup after temporary shutdown. Refer to paragraph 3-8.1 for temporary shutdown information.
a.
Make sure electric controller ON-OFF switch is ON.
b.
Turn AUTO-MANUAL switch to AUTO.
c.
When receiver pressure gauge indicates 155 psi, open main supply valve by turning handle parallel with pipe.
d.
Make sure pressure regulators 1 and 2 indicate 40 psi each. If not, adjust according to step 3-2.1o .
e.
Compressor now automatically turns on and off to maintain air pressure In the system.
Section III. Operating procedures
3-3
General. During operations, perform following preventive maintenance checks:
WARNING
System MUST NOT be operated without an operating safety valve
a.
Make sure receiver pressure gauge indicates no more than 155 psi when compressor is set for AUTO. If gauge
indicates greater pressure, pull test link on air safety valve Air should escape Iron receiver. If air does not
escape, replace safety valve by following procedures in paragraph 4-5.4. This valve cannot be adjusted or
repaired.
b.
Make sure air pressure gauges on air pressure regulators 1 and 2 Indicate 40 psi. If not, adjust according to step
3-2.1 o.
c.
Make sure system is operating normally. When set on AUTO, compressor should cycle on and off to maintain
proper air pressure. If not, shutdown using extended shutdown procedures in paragraph 3-8.2 and troubleshoot
using troubleshooting procedures in Chapter 4 (Table 4-1). Make required repair/adjustments.
d.
Check for damage to pressure gauges, regulators, filters, and compressor/receiver. Repair or replace as
necessary.
e.
Check pipes for loose or missing fasteners or leaks. Repair or replace as necessary.
WARNINGS
DO NOT use compressed air to clean clothing or work space High pressure (HP)
air turns small particles into dangerous projectiles that may injure people.
When using compressed air to clean equipment, ALWAYS use protective shield to
protect eyes and face from flying particles. Wear gloves and avoid skin damage by
closing buttons and collars and rolling down shirt sleeves on work clothing
3-7
