TM 9-2330-356-14
3-17. Underwing Nozzle (M970 and M970A1)
a.
Service.
The screen in the nozzle must be cleaned
periodically and whenever flow is restricted through the
nozzle.
(1) Remove nozzle (see
b
below).
(2)Unscrew adapter (fig. 3-30) from nozzle and
remove screen.
Figure 3-30. Removal of Screen From Underwing Nozzle.
WARNING
Dry cleaning solvent P-D-680 is toxic and
flammable.
Always wear
protective
goggles and gloves, and use only in a well-
ventilated area. Avoid contact with skin,
eyes, and clothes, and DO NOT breathe va-
pors. DO NOT use near open flame or ex-
cessive heat. The solvent’s flash point is
100°F-138°F (38°C-59°C). If you be-
come dizzy while using cleaning solvent,
immediately get fresh air and medical help.
If solvent contacts eyes, immediately wash
your eyes with water and get medical aid.
Compressed air used for drying or clean-
ing purposes must not exceed 30 psi
(207 kPa).
Wear protective clothing
(goggles and gloves) and use caution to
avoid injury to personnel.
(3) Clean the screen in dry cleaning solvent
(item 11, Appendix E). Use compressed air to remove any
excess material and to dry the screen.
b .
Removal.
(1) Move red sleeve (fig. 3-31) on coupling
toward nozzle. Then move red and silver sleeves
(fig. 3-31) back toward hose.
(2) Remove nozzle from coupling.
c .
Installation.
(1) Install nozzle into coupler.
(2) Move silver sleeve (fig. 3-31) on coupling
toward nozzle.
(3) Check for proper connection by trying to pull
the nozzle by hand from the hose.
Figure 3-31. Removal of Uderwing Nozzle
(M970 and M970A1).
3-18. Servicing Air Cleaner (fig. 3-32)
CAUTION
Do not run engine if red band is showing in
restriction Indicator. Damage to engine could
result.
a.
Service air cleaner whenever the restriction
indicator (fig. 3-32) shows a red band.
3-39