Removal Procedures for Diesel Exhaust Fluid (DEF) Connectors {108K} Caterpillar

Articulated Truck

725C (S/N: TFB1-UP)

730C (S/N: TFF1-UP)

Engine

C13 (S/N: N3F1-UP)

C15 (S/N: N5F1-UP)

C18 (S/N: N8F1-UP)

Excavator

336F (S/N: RKB1-UP; SSN1-UP; WTZ1-UP)

349F (S/N: BZ21-UP; KEA1-UP; HLB1-UP; HPD1-UP; TEW1-UP)

352F (S/N: WNA1-UP; YEG1-UP; A9J1-UP; KBP1-UP)

374F (S/N: DNM1-UP)

390F (S/N: MGF1-UP)

Industrial Engine

C9.3 (S/N: CS91-UP)

Landfill Compactor

826K (S/N: 2321-UP)

836K (S/N: TWZ1-UP)

Motor Grader

12M Series 3 (S/N: N9B1-UP; N9F1-UP; N9P1-UP; N9R1-UP)

140M Series 3 (S/N: N9D1-UP; N9G1-UP; N9J1-UP; N9M1-UP)

14M Series 3 (S/N: N9S1-UP)

160M Series 3 (S/N: N9E1-UP; N9K1-UP; N9L1-UP; N9T1-UP)

16M Series 3 (S/N: N9Y1-UP)

Off-Highway Truck/Tractor

770G (S/N: KDH1-UP)

772G (S/N: KEX1-UP)

Soil Compactor

825K (S/N: 2331-UP)

Track-Type Tractor

D6T (S/N: RAD1-UP; KMR1-UP; WES1-UP; HTZ1-UP)

D8T (S/N: AW41-UP; FMC1-UP)

D9T (S/N: REX1-UP)

Wheel Dozer

824K (S/N: 2341-UP)

834K (S/N: TWY1-UP)

Wheel Loader

966M (S/N: DYC1-UP; KJP1-UP)

966M Series XE (S/N: P6C1-UP)

972M (S/N: A8P1-UP; JPR1-UP)

972M Series XE (S/N: EDW1-UP)

980M (S/N: KRS1-UP; N8T1-UP)

982M (S/N: F9A1-UP; K1Y1-UP)

988K (S/N: TWX1-UP)

Wheel Tractor-Scraper

623K (S/N: WTB1-UP)

627K (S/N: WTC1-UP)

Introduction

This Special Instruction covers the installation procedure for DEF connectors on the models and applications listed above.

Safety Section

Show/hide table

Personal injury or death can result from improperly checking for a leak. Always use a board or cardboard when checking for a leak. Escaping air or fluid under pressure, even a pin-hole size leak, can penetrate body tissue causing serious injury, and possible death. If fluid is injected into your skin, it must be treated immediately by a doctor familiar with this type of injury.

Illustration 1	g00104545

Prevent the machine from movement. Park the machine on a level surface.

Attach a "Do Not Operate" warning tag or a similar warning tag to the start switch or to the controls before you service the equipment. These warning tags (Special Instruction, SEHS7332) are available from your Caterpillar dealer.

Removal Procedure for Single Clip Connectors

Illustration 2	g03468077
(1) Line (2) Retaining Clip

1. Clean the area around the connector with compressed air. Be sure to remove any dirt or debris before continuing with this procedure.

2. Press down on the line (1).

3. Press IN on the retaining clip (2).

4. Gently pull straight up on the line.

   Note: Do not pull out the clip, damage will occur to the retaining clip.

   Note: Do not pull off the line without the clip being fully depressed, damage will occur to the retaining clip.

Removal Procedure for Dual Clip Connectors

Illustration 3	g03468506
(1) Line (2) Retaining Clips

1. Clean the area around the connector with compressed air. Be sure to remove any dirt or debris before continuing with this procedure.

2. Press down on the line (1).

3. Press IN on the retaining clips (2).

4. Gently pull straight up on the line.

   Note: Do not pull out the clip, damage will occur to the retaining clip.

   Note: Do not pull off the line without the clip being fully depressed, damage will occur to the retaining clip.