2002/11/18 New High Pressure Oil Hose Assembly Offers Added Flexibility for Thermal Expansion {1714, 7554} Caterpillar

New High Pressure Oil Hose Assembly Offers Added Flexibility for Thermal Expansion {1714, 7554}

2002/11/18 [SEPD0656]

2002/11/18 New Adapters for the Shaw Aero Fast Fill Fuel Systems {1273, 1274, 1710}

2002/11/18 A New Drum Propel Motor and Final Drive Is Now Used on Certain Vibratory Soil Compactors {4351, 6605}

FUEL SYSTEM

FUEL SYSTEM GP

2002/11/18 New High Pressure Oil Hose Assembly Offers Added Flexibility for Thermal Expansion {1714, 7554}

Cold Planer:
PM-565 CP TT (S/N: 3TK1-UP)
PM-565B (S/N: 8GS1-UP)
Landfill Compactor:
836 (S/N: 7FR1-UP)
Motor Grader:
24H (S/N: 7KK1-UP)
Off-Highway Truck/Tractor:
69D (S/N: 9SS1-UP; 9XS1-UP)
769D (S/N: 5SS1-UP; 5TR1-UP)
773D (S/N: 7CS1-UP; 7ER1-UP)
Quarry Truck:
771D (S/N: 6JR1-UP; 6YS1-UP)
775D (S/N: 6KR1-UP; 8AS1-UP)
Track-Type Tractor:
D9R (S/N: 8BL1-UP; 7TL1-UP)
D10R (S/N: 3KR1-UP)
Underground Articulated Truck:
AD40/AE40 (S/N: 1YZ1-UP; 1ZZ1-UP)
Wheel Loader:
988F Series II (S/N: 2ZR1-UP)
990 Series II (S/N: 4FR1-UP)
Wheel Tractor:
834B (S/N: 7BR1-UP)
844 (S/N: 2KZ1-UP)
Wheel Tractor-Scraper:
631E Series II (S/N: 1AB1-UP; 1NB1-UP)
633E Series II (S/N: 2PS1-UP)
637 Series II (S/N: 1FB1-UP)
651E (S/N: 4YR1-UP)
657E (S/N: 7KR1-UP; 6PR1-UP; 6TR1-UP; 5YR1-UP)
Service Magazine SEPD0453, 25 January 1999, "New High Pressure Oil Hose Assembly Now Used".

Reference: Special Instruction, REHS1449, "Installation of New Hose Assembly for Unit Injector Hydraulic Pump"

Description of Change: A new hydraulic hose assembly is being used now in the lines group for the unit injector hydraulic pump. This new hose assembly exhibits increased flexibility for thermal expansion. The new hose assembly has extended life and improved reliability. Refer to Special Instruction, REHS1449, "Installation of New Hose Assembly for Unit Injector Hydraulic Pump" for installation instructions for the new hose assembly. The new hose assembly should be inspected daily during the walk-around inspection.

Adaptable To: The new 162-2501 Hose Assembly replaces the former 107-7942 Hose Assembly. The new Hose Assembly can be found in the 121-4034 Injector Hydraulic Pump Lines for 3408E engines. The new Hose Assembly can also be found in the 109-0399 Injector Hydraulic Pump Lines for the 3412E engines. The new hose assembly connects the unit injector hydraulic pump to the left pressure manifold. The 162-2501 Hose Assembly is adaptable to the serial numbers that are shown in Table 1. The new Hose Assembly is also effective with the serial numbers that are shown below.

Show/hide table

Table 1
Machine Model	Adaptable to Machine Serial Numbers	Effective with Machine Serial Numbers
AD40/AE40	None	S/N:1YZ1-UP
AD40/AE40	None	S/N:1ZZ1-UP
D9R	S/N:8BL1-1367	S/N:8BL1368-UP
	S/N:7TL1-1079	S/N:7TL1080
	S/N:7TL1081-1082	S/N:7TL1083-UP
D10R	S/N:3KR1-1211	S/N:3KR1212-UP
PM565	S/N:3TK1-112	S/N:3TK113-UP
PM565B	S/N:8GS1-150	S/N:8GS151-UP
24H	S/N:7KK1-66	S/N:7KK67-UP
69D	None	S/N:9SS1-UP
69D	None	S/N:9XS1-UP
631E Series II	S/N:1AB1-1841	S/N:1AB1842-UP
631E Series II	S/N:1NB1-1432	S/N:1NB1433-UP
633E Series II	S/N:2PS1-313	S/N:2PS314-UP
637E Series II	S/N:1FB1-775	S/N:1FB776-UP
651E	S/N:4YR1-220	S/N:4YR221-UP
657E	S/N:7KR1-231	S/N:7KR232-UP
	S/N:6PR1-102	S/N:6PR103-UP
	S/N:6TR1-214	S/N:6TR215-UP
	S/N:5YR1-282	S/N:5YR283-UP
769D	S/N:5SS1-74	S/N:5SS75-UP
769D	S/N:5TR1-1025	S/N:5TR1026-UP
771D	S/N:6JR1-301	S/N:6JR302-UP
771D	S/N:6YS1-71	S/N:6YS72-UP
773D	S/N:7CS1-75	S/N:7CS76-UP
773D	S/N:7ER1-947	S/N:7ER948-UP
775D	S/N:8AS1-80	S/N:8AS81-UP
775D	S/N:6KR1-373	S/N:6KR374-UP
834B	S/N:7BR1-661	S/N:7BR662-UP
836	S/N:7FR1-385	S/N:7FR386-UP
844	None	S/N:2KZ1-UP
988F	S/N:2ZR1-1571	S/N:2ZR1572-UP
990	S/N:4FR1-371	S/N:4FR372-UP