Cub-cadet Yanmar 3TNV72 User Manual download pdf (Page 185)

FUEL SYSTEM

7-24 TNV IDI Service Manual

Fuel Injectors

Figure 7-30

6. Remove the injector nozzle gaskets

(Figure 7-30, (5)) and protector

(Figure 7-30, (6)) from the cylinder head.

Testing of Fuel Injectors

1. Thoroughly clean the fuel injector nozzle using

clean diesel fuel and a brass wire brush.

2. Visually inspect the fuel injectors and nozzle

protectors for deposits or damage. Clean, repair

or replace as necessary.

Note: Test the fuel injector using an injection

nozzle tester. Operate the tester

following the information provided by the

tester manufacturer. Use clean, filtered

fuel or FIE calibration fluid for the test.

3. Using the correct adapter, connect a fuel

injector to a nozzle tester. Aim the fuel injector

into a suitable container to catch the fuel spray

(Figure 7-31).

Figure 7-31

0002213

(1)

(2)

(3)

(4)

(6)

(5)

CAUTION

Never use a steel wire brush to clean

fuel injectors. Damage to the nozzle and

other components is likely to result.

0000172en

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Cub-cadet Yanmar 3TNV72 User Manual Page 185