TM 1-1500-204-23-9
e.
Pattern Troubleshooting. Figure 5-10 shows
common faults associated with spray patterns.
5-4.
Oil Spray Guns. Oil spray guns operate on the
same principles as paint guns as discussed in paragraph
5-3.
a.
Use This type of spray gun employs nozzle
fittings long enough to reach out-of-the-way places, and
is used to clean aircraft engines and parts or to apply
pickling solution to an engine that is to be placed in
storage. Atypical oil spray gun is shown in figure 5-11.
WARNING
Drycleaning solvent is flammable and
solvent vapors are toxic. Use P-D-680,
Type II Solvent in a well-ventilated area.
Keep away from open flames. Avoid
prolonged solvent contact with skin.
b.
Care. To clean oil spray guns, use drycleaning
solvent, Federal Specification P-D-680, and follow the
procedures outlined in paragraph 5-3d.
5-5.
Cleaning Guns. Cleaning guns are used for
applying air or solvent under pressure to parts which
must be cleaned.
a.
Types. There are two main types of cleaning
guns: the solvent cleaning gun and the air blow clean-
ing gun.
(1)
Solvent cleaning gun. The solvent
cleaning gun, shown in figure 5-12, is used for applying
a spray of solvent to engines and other structures which
are cleaned with solvent.
(2)
Air blow cleaning gun. The air blow
cleaning gun, shown in figure 5-13, is used for applying
a direct blast of air to clear away dirt, dust, and metal
shavings, or to air dry parts cleaned with solvent.
b.
Use. The following paragraphs describe the
procedures for using these cleaning guns.
(1)
Solvent cleaning gun. The solvent
cleaning gun is operated as follows:
(a)
Connect an air hose to the air inlet
connection.
(b)
Insert
the
pickup
tube
into
a
container of the appropriate solvent.
(c)
Squeeze the trigger to expel the
solvent from the nozzle.
(2)
Air blow cleaning gun. The air blow
cleaning gun is operated as follows:
(a)
Connect an air hose to the air inlet
connection.
(b)
Point the nozzle at the work.
(c)
Press the lever to expel the air.
c.
Care. Observe the following practices for the
care and upkeep of cleaning guns:
(1)
On solvent cleaning guns, ensure that the
hose and pickup tube are not clogged or restricted in
any way.
(2)
Keep the nozzle clear so that the flow of
solvent or air is not impeded.
5-6.
Pneumatic Vacuum Cleaner. The pneumatic
vacuum cleaner, shown in figure 5-14, is used to clean
up metal shavings which result from drilling and filing
jobs on aircraft and in shops. The attachments give the
vacuum cleaner versatility. These attachments include
a round brush, a crevice tool, a fan-shaped end, and
tube extensions of varying lengths. The bag should be
emptied regularly and replaced as necessary.
5-7.
Pneumatic Drill. Pneumatic drills are used where
sparks from an electric drill might become a fire hazard.
a.
Types. Pneumatic drills that are available are
straight, set at 90 degrees, or rotate through 360
degrees, as shown in figure 5-15. These different types
allow a part to be drilled in just about any location.
b.
Use. The following paragraphs describe the
procedures for using pneumatic drills:
5-5
