TM 55-2840-254-23
Section X. MAINTENANCE PROCEDURES
1-106.2
1-106.2 HOT END WASH
INlTlAL SETUP
Materials:
Cleaning Solution (E11)
Applicable Configurations:
Dry Cleaning Solvent (El 7)
All
Lockwire (E29)
Tools:
Rust Inhibitor and Preservative (E44)
Powerplant Mechanic's Tool Kit,
Protective Caps
NSN 5180-00-323-4944
Technical Inspection Tool Kit,
Personnel Required:
NSN 5180-00-323-5114
68B10 Aircraft Powerplant Repairer
compressed Air source
88B30 Aircraft Powerplant Inspector
Air Pressure regulator
68B30 Aircraft Powerplant Supervisor
Solvent Gun
References:
Utility Pail (2)
TM 55-1520-240-10
LTCT 12870-01
TM 55-4920-328-13
Hot End Water Wash Wend
NSN 4820-01-356-6903
4. Connect air pressure hose with an air
NOTE
pressure regulator and a source of 55
psig. Connect solvent gun to water
Initial setup is the same as Task
wash wand, LTCT 12870-01.
tool: LTCT 12870-01, Hot End Water
5. Remove 12 o'clock and 4 o'clock igni-
Wash Wand.
tor plugs to gain access for water
wash wand, LTCT 12870-01.
1. Run engine at ground idle for 5 min-
NOTE
utes and shut down engine. (Ref. TM
On left side installed engines, remove
55-1520-240-10 or Task 1-107.)
9 o'clock and 12 o'clock ignitor plugs.
6. Insert wand into combustor through
2. Let engine cool down by motoring the
the 12 o'clock ignitor port and spray
engine with the starter until PTIT is
for 30 seconds. Remove wand and
between 302 and 482F (150 and
insert in 4 o'clock or 9 o'clock port
200C).
and spray for 30 seconds. Rotate
wand while spraying to obtain maxi-
mum coverage.
3. Mix a solution of cleaning solution
(E11) with water, mix 3 quarts of wa-
7. Insert spray wand into 12 o'clock igni-
ter to 1 quart of solution in a clean
tor port and spray for 30 seconds
utility pail. Place an empty utility pail
while motoring engine.
under combustion drain valve and
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under the tail pipe.
Change 10 1-456.9
