Hokuetsu Airman PDS100S-6B1, Instruction Manual, Page: 45 / 64

5. Periodic Inspection/Maintenance
5
-
14
5.10 Maintenance at Every 1,000 Hours
5.10.1 Change Compressor Oil Filter
Follow the same procedure for changing compressor oil filter as mentioned in 5.8.2.
5.10.2 Change Diaphragm of Speed Regulator
<Caution during diaphragm replacement>
When installing diaphragm (1), be sure to use the special jig
to prevent it from twisting.
Before installing diaphragm (1), be sure to apply
molybdenum disulfide (paste spray) to inside of the
diaphragm (1).
Install it so that its outside surface should be rubber and its
inside cloth.
For replacement parts, refer to 5.4.2.
5.10.3 Clean outside of the Radiator and Oil Cooler
When the fin tubes (1) of a radiator and an oil cooler are
clogged with dust or other foreign materials, the heat
exchange efficiency drops and this will raise coolant
temperature and discharge air temperature. These tubes and
fins should be cleaned depending on the state of clogged tubes
(1) even before 1000 hours maintenance schedule.
Do not use a high pressure washer to protect fin tubes from
being damaged.
5.10.4 Clean inside Radiator
When the inside of a radiator and water conduits of an engine are dirty with scale and rust, its
cooling efficiency will be deteriorated. Clean the interiors of such components periodically.
Ask your nearest dealer for such inner cleaning.
H000053
H000054