Yanmar 3YM30 Sevice Manual page 88

4. Disassembly and reassembly
No. Name of tool
9 V Block
10 Torque wrench
11 Thickness gauge
12 Cap tester
13 Battery current tester
14 Nozzle tester
15 Digital thermostat
Use
Measures shaft distortion.
Used to tighten bolts and nuts to
standard torque.
Measures the distance between the
ring and ring groove, and between
the shaft and shaft joint at time of
assembling.
Check for leakage in the fresh water
system.
Checks density of antifreeze and
charging condition of battery fluid.
Checks the shape and pressure of
spray emitted from the fuel injection
valve at the time of injection.
Measures temperature of various
parts.
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Illustration
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Float