MAULE MX-7-420 TURBO-PROP, Руководство по обслуживанию

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MAULE AEROSPACE TECHNOLOGY, INC.
MAINTENANCE MANUAL
FOR
MX-7-420
13
Rev. A
28 3-108 Inspect and clean the fuel nozzle.
29 Item 8, Table III-10 Inspect and clean the No. 1 bearing oil pressure reducer.
30 Item 11, Table III-10
Visually inspect external sump. Clean internal carbonaceous
deposits from sump.
31
3-166 Item 10,
Table III-10
Inspect the power turbine support scavenge strut. Clean in-
ternal carbonaceous deposits from sump.
Other Scheduled Inspections
Interval Reference Inspection/Maintenance Action
500HR/1 YR
250-B 17
CSL-1030
Inspect uncoated and coated power turbine outer coupling nuts
for corrosion. Compliance with bulletins removes this require-
ment.
500 HR 3-120
Check the fuel pump driveshaft on Sundstrand single element
pumps for spline wear. NOTE: This inspection not required on
TRW pumps.
600 HR 3-89
Make an installation rotating balance of the engine and propel-
ler at intervals not to exceed 600 hours.
1500 HR 3-128 Replace fuel control strainer assembly.
1750 HR 3-83
Inspect the compressor case. Inspection frequency shall be
made as necessary by operating environment. In erosive envi-
ronment, inspect case at least every 300 hours. In any envi-
ronment, do not exceed 1750 hours without case inspection.
1750 HR 3-212A
Inspect the compressor splined adapter internal splines and the
spur adapter gearshaft splines (forward and aft) for wear.
Engine Oil System Scheduled Maintenance
(Table III-10 from Allison Operations & Maintenance Manual)
No. Item Action Time Period Notes
1
Engine
lube oil
Change oil
200 hr max,
or six months,
whichever
comes first Follow procedures in Oil
Change, para 3-163. (Refer
to Approved Oils, para 1-
74.)
2
Engine oil
filter
Inspect and clean filter
element using ultrasonic
cleaner with perchloroe-
thylene.
100 hr max.
Follow procedures in Oil Fil-
ter, para 3-168.