Diesel Exhaust Fluid (DEF) Pump Filter Maintenance Interval On Certain C4.4 Machine Engines {1000, 108J, 7000} Caterpillar

Asphalt Compactor

CB64B (S/N: C561-UP; 4781-UP)

CB66B (S/N: B661-UP)

CB68B (S/N: C681-UP)

CCS9 (S/N: C521-UP)

Asphalt Paver

AP500F (S/N: 4491-UP; F5M1-UP)

AP555F (S/N: AP51-UP; M451-UP)

AP600F (S/N: AP61-UP)

AP655F (S/N: 4521-UP; 4531-UP; 6551-UP; MH61-UP)

Backhoe Loader

416F2 (S/N: HWB1-UP)

420F2 (S/N: NMB1-UP)

420F2 IT (S/N: HWD1-UP)

420F2 ST (S/N: HWC1-UP)

428F2 (S/N: HWN1-UP)

430F2 IT (S/N: HWG1-UP)

430F2 ST (S/N: HWE1-UP)

432F2 (S/N: HWP1-UP)

434F2 (S/N: HWR1-UP)

440 (S/N: DC91-UP)

444F2 (S/N: HWS1-UP)

450 (S/N: KJH1-UP)

Compact Wheel Loader

910M (S/N: H221-UP)

914M (S/N: H241-UP)

918M (S/N: H261-UP)

Engine

C4.4 (S/N: CK51-UP; CF71-UP)

Excavator

312F (S/N: KMK1-UP)

313F (S/N: DH81-UP; DJE1-UP; NLG1-UP; PRG1-UP)

314F (S/N: LFC1-UP; RAF1-UP)

315F (S/N: FTC1-UP; TDY1-UP)

316F (S/N: XAD1-UP; YDL1-UP; ECZ1-UP)

318F (S/N: HCP1-UP; FFT1-UP)

320 (S/N: HEX1-UP)

320 GC (S/N: KTN1-UP)

320F (S/N: NHD1-UP; YBM1-UP)

323F (S/N: YEC1-UP; MFY1-UP)

325F (S/N: XAA1-UP; YCA1-UP; CPF1-UP; NDJ1-UP; RBW1-UP)

Knuckleboom Loader

2384D (S/N: KP51-UP)

2484D (S/N: KP71-UP)

559D (S/N: KL51-UP)

579D (S/N: KL71-UP)

Mobile Hydraulic Power Unit

316F-MHPU (S/N: HS31-UP)

M316F MHPU (S/N: CP51-UP)

OEM Mobile Hydraulic Power Unit

323F OEM (S/N: P7P1-UP; RGP1-UP)

Pipelayer

PL61 (S/N: S3H1-UP)

Pneumatic Compactor

CW34 (S/N: AL31-UP)

Telehandler

TH3510D (S/N: TH21-UP)

TH357D (S/N: TD61-UP)

TH408D (S/N: TH91-UP)

TL1055D (S/N: ML51-UP)

TL1255D (S/N: ML71-UP)

Track-Type Tractor

D3K2 (S/N: KF21-UP; KL21-UP; JPJ1-UP)

D4K2 (S/N: KM21-UP; KR21-UP)

D5K2 (S/N: KW21-UP; KY21-UP; RRE1-UP)

D6K2 (S/N: EL71-UP; MGM1-UP; DFR1-UP; JTR1-UP)

Vibratory Asphalt Compactor

CB13 (S/N: PWP1-UP)

CB15 (S/N: M941-UP)

CB16 (S/N: HP51-UP)

Vibratory Soil Compactor

CP54B (S/N: 4831-UP; P541-UP)

CP56B (S/N: 4851-UP; P561-UP)

CP68B (S/N: P681-UP; 4891-UP)

CP74B (S/N: 4911-UP; P741-UP)

CS54B (S/N: 4821-UP; CS51-UP)

CS56B (S/N: 4841-UP; S561-UP)

CS64B (S/N: CW61-UP; 4861-UP)

CS66B (S/N: S661-UP; 4871-UP)

CS68B (S/N: CS81-UP; 4881-UP)

CS74B (S/N: 4901-UP; CS41-UP)

CS76B (S/N: 4921-UP)

CS78B (S/N: 4931-UP; S781-UP)

Wheeled Excavator

M314F (S/N: FB41-UP; F4A1-UP)

M315F (S/N: F4D1-UP)

M316F (S/N: FB61-UP; F6N1-UP)

M317F (S/N: F6P1-UP)

M323F (S/N: RH31-UP)

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Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility.

There have been instances of diagnostic code E931 - Aftertreatment#1 SCR Dosing Reagent Absolute Pressure : Low (4334-18 - Aftertreatment #1 DEF #1 Pressure (absolute) : Low – moderate severity) becoming active. This code can be generated by a blocked 495-1507 Diesel Exhaust Fluid Filter Gp, due to the filter not being replaced at the correct maintenance interval.

The maintenance interval schedule for the DEF pump filter is every 1500 hours. Ensure that the filter is replaced at the correct service interval. Refer to Operation and Maintenance Manual, Maintenance Interval Schedule for the correct procedure.