TM 3-1040-262-13&P
Table 4-1. Organizational Preventive Maintenance Checks and Services-Continued
Quarterly Schedule - Time required: 1.1
Total time required: 2.2 hours
Prior to Issue - Time required: 1.1
Prior to
Work Time
Quarterly
Issue
(M/H)
(15), a safety relief valve (low pressure) (5), and the fluid pressure regulating
valve (4) for damage or missing parts. Ensure proper installation of air cylinder
to the frame and harness assembly. Tighten fluid pressure regulating valve
mounting screws if necessary. Check air cylinder expiration date for
hydrostatic and volumetric testing.
11
Using the pressure check gage assembly (fig. 4-2), check that the air cylinder is
fully charged.
0.1
5
12
Agent Container Assembly
0.1
Inspect the agent container assembly (fig. 1-3) for damage and missing parts.
Ensure that the agent container assembly is securely mounted on the frame and
harness assembly and that it is properly connected to the air pressure assembly.
Check that the agent container is filled and that the proper check valve assembly
is installed.
6
13
Gun Assembly
0.2
Inspect the discharge hose (fig. 1-5) for damage and missing parts. A slight
amount of flattening of the hose assembly will not affect performance. Inspect
the gun for trigger operation and automatic release Inspect that proper jet
spray unit is installed and that it is not clogged.
14
Turn the adjust nut stop (fig. 1-5) all the way back toward the handle to ensure
trigger operation.
0.1
7
Records
0.1
Complete logbook forms (TM 38-750).
Section IV. ORGANIZATIONAL TROUBLESHOOTING
WARNING
4-8. General
Troubleshooting
procedures
for
organizational
If the disperser was used with CS dry or CR
maintenance are presented in Table 4-2.
liquid agent, decontaminate (para 4-16)
4-9. Troubleshooting Table
before
performing
troubleshooting
or
maintenance where possible. If the disperser
and corrective action information useful in diagnosing
was pressurized, ensure that all air pressure
and correcting unsatisfactory operation or failure.
is relieved.
Table 4-2. Organizational Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. WEAK OR NO DISCHARGE OF AGENT WHEN TRIGGER IS SQUEEZED
Step 1. Clogged or defective gun assembly.
Repair or replace gun assembly (para 4-17.)
Step 2. Low pressure (Air Pressure Assembly).
Check regulating valve (pressure regulator) setting using inline pressure check gage assembly (para 4-10a).
Replace pressure regulator if necessary (para 4-21c).
Check the nonmetallic hose assembly (low pressure) (para 4-24) and manifold coupler assembly (para 4-26)
for restriction or blockage.
Step 3. Clogged tube to boss straight adapter (strainer assembly) (air pressure assembly).
Clean or replace tube to boss straight adapter (strainer assembly) (para 4-21b).
2. AGENT LEAKING FROM GUN ASSEMBLY
Step 1. Packing screw loose.
Tighten packing screw (26, fig. 4-5).
Change 1
4-4
