12-8.2 Startup after temporary shutdown. (Refer to paragraph 12-10.1)
Make sure electric controller ON-OFF switch is ON.
Turn AUTO-MANUAL switch to AUTO.
When receiver pressure gauge indicates 155 psi, open main supply valve by turning handle parallel with pipe.
Make sure pressure regulators 1 and 2 indicate 40 psi each. If not, adjust as indicated in step 12-8.1.o.
Compressor now automatically turns on and off to maintain air pressure in the system.
12-9 Operating procedures
12-9.1 General. During operations, perform following preventive maintenance checks:
System MUST NOT be operated without an operating safety valve.
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 from receiver. If air does not
escape, replace safety valve by following procedures in TM 55-1930-209-14&P-7. This valve cannot be adjusted
Make sure air pressure gauges on air pressure regulators 1 and 2 indicate 40 psi. If not, adjust according to step
Make sure system is operating normally. When set on AUTO, compressor should cycle on and off to maintain
proper air pressure. If not, shut down using extended shutdown procedures in paragraph 12-10.2 and
troubleshoot using troubleshooting procedures in Table 4-1 in TM 55-1930-209-14&P-7. Make required
Check for damage to pressure gauges, regulators, filters, and compressor/receiver. Repair or replace as
Check pipes for loose or missing fasteners or leaks. Repair or replace as necessary.
12-9.2 Operating compressed air stations 1 thru 5 and 7
DO NOT use compressed air to clean clothing or work space. High pressure 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.
Connect air hose to compressed air station quick disconnect coupling (Figure 12-8). Open air station air valve by
Upon completion, dose compressed air station air valve by turning clockwise.
If hose is self-retracting, it may remain attached to quick disconnect coupling. If not self-retracting, remove hose
and stow in workshop storage area.