Yanmar 3YM30 Sevice Manual page 87

(2) Use of tools
No. Name of tool
1 Dial gauge
2 Test indicator
3 Magnetic stand
4 Micrometer
5 Cylinder gauge
6 Vernier calipers
7 Depth micrometer
8 Square
Use
Measures shaft bending, distortions
of levelness, and gaps.
Measures narrow and deep places,
which cannot be measured with dial
gauge.
Keeps the dial gauge firmly in
position, thereby permitting it to be
used at various angles.
Measures the outer diameter of the
crank shaft, piston, piston pin, etc.
Measure the inner diameter of the
cylinder liner and rod metal.
Measures various outer diameters,
thicknesses, and widths.
Measures sinking of valves.
Measures distortion in position of
springs and perpendicularity of
parts.
72
4. Disassembly and reassembly
Illustration