Kohler KD83V16 Service And Repair Manual page 256

Repair
Exhaust aftertreatment system
Fig. 291: Removing injector nuts
u Remove the injector fixing nuts 9, and washers 8.
Fig. 292: Removing injector assembly
u Remove the injector 3, and the retaining plate 10 together as an assembly.
Information
Make sure the screws remain in place on the reactor.
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Service and Repair Manual
KD83V16 33525088901_2_1 EN_US
2021-07