Replacement of the Fuel Manifold (Rail){1251, 1290} Caterpillar

Replacement of the Fuel Manifold (Rail){1251, 1290}

Usage:

C6.6 666

Soil Compactor:: CP56 (S/N: FCP109-126); CP64 (S/N: P7F105-105); CS74 (S/N: C8F229-263); CS76 (S/N: CYX191-248)
Engine:: C6.6 (S/N: 6669964-9988,9993-9997,10024-10082,10085-10115,10150-10180,10182-10193,10195-10196,10219-10228,10230-10273,10275-10294,10296-10313,10317-10326,10332-10361,10363-10392,10394-10395,10397-10397,10399-10408,10411-10427,10430-10430,10432-10432,10434-10434,10436-10437,10439-10478,10480-10520,10523-10524,10526-10526,10528-10530,10532-10537,10539-10541,10543-10560,10562-10562,10567-10572,10579-10590,10592-10593,10595-10595,10598-10601,10603-10631,10636-10641,10657-10659,10661-10675,10677-10682,10684-10688,10692-10697,10699-10701,10705-10705,10707-10707,10728-10732,10734-10741,10744-10749)
Excavator:: M316D (S/N: W6A1054-1054); M318D (S/N: W8P1105-1105); M318D MH (S/N: W8R308-311); M322D MH (S/N: W2T416-424)
Integrated Toolcarrier:: IT38H (S/N: JNJ335-351)
Motor Grader:: 120M (S/N: B9C446-446; B9W182-182)
Paving Compactor:: CP76 (S/N: C7L107-110); CS56 (S/N: FCS291-381); CS64 (S/N: C7F131-131)
Pipelayer:: PL61 (S/N: WGS144-163)
Track-Type Loader:: 953D (S/N: LBP912-912)
Track-Type Tractor:: D6K LGP (S/N: DHA1041-1070); D6K XL (S/N: FBH1288-1383); D6N XL (S/N: DJA1126-1177; JAH283-286); D6N LGP (S/N: DJY1552-1639)
Wheel Loader:: 924H (S/N: JTM806-814; KLN340-362); 924HZ (S/N: WLB244-271; PED584-650); 928HZ (S/N: BYD386-393); 930H (S/N: FTD1027-1108); 938H (S/N: JKM648-705; LKM281-449)

Introduction

There has been a number of isolated instances of issues with leaks at the connection of the pressure relief valve and the 311-6632 Fuel Rail Assembly on certain C6.6 engines.

The 311-6632 Fuel Rail Assembly has been improved and there is no change to the part number.

Required Parts

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Table 1
Required Parts
Part Number	Description	Qty
336-8180	Fuel Injection Tube	1
290-3911	Fuel Injection Tube	1
290-3912	Fuel Injection Tube	1
290-3913	Fuel Injection Tube	1
290-3914	Fuel Injection Tube	1
290-3915	Fuel Injection Tube	1
290-3916	Fuel Injection Tube	1
311-6632	Fuel Rail Assembly	1
278-4138	Fuel System Protection Gp	1
299-7878	Film	1

Removal Procedure

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NOTICE

Ensure that all adjustments and repairs that are carried out to the fuel system are performed by authorized personnel that have the correct training. Before beginning ANY work on the fuel system, refer to Operation and Maintenance Manual, "General Hazard Information and High Pressure Fuel Lines" for safety information. Refer to System Operation, Testing and Adjusting, "Cleanliness of Fuel System Components"for detailed information on the standards of cleanliness that must be observed during ALL work on the fuel system.

Remove the fuel injection lines. Discard the fuel injection lines. Refer to Disassembly and Assembly, "Fuel Injection Lines - Remove".

Remove the fuel pressure sensor. Refer to Disassembly and Assembly, "Fuel Pressure Sensor - Remove and Install".

Remove the fuel manifold (rail). Disassembly and Assembly, "Fuel Manifold (Rail) - Remove and Install". Discard the fuel manifold (rail).

Install new caps to the fuel injection pump and to the connections of the fuel manifold (rail).

Installation Procedure

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NOTICE

Ensure that all adjustments and repairs that are carried out to the fuel system are performed by authorized personnel that have the correct training. Before beginning ANY work on the fuel system, refer to Operation and Maintenance Manual, "General Hazard Information and High Pressure Fuel Lines" for safety information. Refer to System Operation, Testing and Adjusting, "Cleanliness of Fuel System Components"for detailed information on the standards of cleanliness that must be observed during ALL work on the fuel system.