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315 GC and 315 Excavator Caterpillar


Diesel Exhaust Fluid Injector - Replace

Usage:

315 GC LYW
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Illustration 1g06226112
Typical example
(1) Coolant lines
(2) DEF line
(3) Electrical connector
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Illustration 2g06226151
Typical example
(4) Nuts
(5) DEF injector
(6) Clean Emission Module

  • Drain the coolant to remove coolant lines (1). Remove cooling lines (1) and remove Diesel Exhaust Fluid (DEF) line (2).

  • Remove electrical connector (3) from DEF injector (5) and install protection caps to DEF injector (5). Remove nuts (4) and washers (9) from DEF injector (5) and remove DEF injector from Clean Emission Module (CEM) (6).
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    Illustration 3g06226155
    Typical example
    (4) Nuts
    (5) DEF injector
    (7) Gasket
    (8) Studs
    (9) Washers

  • Remove gasket (7) and remove studs (8). Discard the gasket and the studs.

  • Ensure that the sealing face of the CEM is clean and free from dirt.

  • Apply bostik pure nickel ant-seize compound to ends of the new studs (8). Install the coated ends of the new studs into the CEM, and tighten to a torque of 5 N·m (44 lb in).

  • Install new gasket (7), ensure that the metal side of the gasket is to the CEM. Install new DEF injector (5) to CEM (6).

  • Install washers (9) and apply bostik pure nickel ant-seize compound to the threads of studs (8).

  • Install nuts (4) and tighten the nuts to a torque of 5 N·m (44 lb in). Retighten the nuts to 5 N·m (44 lb in). Then, turn the nuts an additional 90 degrees.

  • Install electrical connector (3), DEF line (2), and coolant lines (1).

  • Fill cooling system to the correct level. Ensure that the correct specification of coolant is used.

    If available, using the electronic service tool (ET) perform DEF Dosing System Verification test.

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