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4st 4/5/6 2011
2) Instruments
For the following measuring instruments, use commercially available ones.
Circuit tester ( Resistance : 1Ω, 10Ω, 10 kΩ, AC voltage : 30 to 300V, DC voltage : 30V )
Vernier calipers ( M1 type, 300 mm )
Micrometer ( minimum graduation of 0.01, outer, 0 to 25 mm, 25 to 50 mm, 50 to 75 mm )
Cylinder gauge ( 4 to 6 mm, 10 to 25 mm, 25 to 50 mm, 50 to 75 mm )
Ring gauge ( ø5.5, ø14, ø20, ø47, ø55 )
Dial gauge ( minimum graduation of 0.01 )
Thickness gauge ( 0.03 to 0.3 mm )
V block
Surface plate ( 500 mm x 500 mm )
Dial gauge magnet base or dial gauge stand
3. Tools and Instruments
1) Test Propeller
P/N. 3B2-64110-1
Outer diameter : 164mm
Width : 12mm
(Reference value)
Model
Speed at WOT
(Wide Open Throttle) (r/min)
F 4B/5B 4,500 - 5,500
F6B5,000 - 6,000
This test propeller has been designed for break-in
operation and load test operation.
The engine speed at WOT varies depending on
the conditions such as the level or water or air
temperature, and thus, the measurement is not
for confirmation or power of the engine.
MFS4-5-6Ech01110422.qxd 11.4.22 5:41 PM ページ5
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