2012/12/21 Caterpillar

An Improved Transmission Harness Is Now Used for Certain Cat® Products {1408, 3167, 5736}

Usage:

769C 01X

Articulated Truck: 735 (S/N: B1N1-UP) 740 (S/N: WWD1-UP; B1P1-UP) 740 EJECTOR (S/N: B1R1-UP)
Pumper: SPF343C (S/N: RTX1-UP)
Transmission: TH55 - KRESS (S/N: KCH1-UP)
Off-Highway Truck/Tractor: 769C (S/N: 01X2-UP) 769D (S/N: BBB1-UP) 770 (S/N: BZZ1-UP) 772 (S/N: RLB1-UP) 773D (S/N: NBJ1-UP; 7CS1-UP) 773E (S/N: ASK1-UP) 777B (S/N: 4YC1-UP) 777C (S/N: 4XJ1-UP) 777D (S/N: FKR1-UP) 789C (S/N: 2BW1-UP)
Quarry Truck: 771D (S/N: BCA1-UP) 775E (S/N: DTE1-UP)
Petroleum Transmission: TH48-E80 (S/N: FRT1-UP)
Underground Articulated Truck: AD30 (S/N: DXR1-UP) AD45B (S/N: CXM1-UP) AD55 (S/N: ANW1-UP; DNW1-UP)
Wheel Tractor-Scraper: 621G (S/N: DBB1-UP; DXB1-UP; KJW1-UP) 623G (S/N: DBC1-UP) 627G (S/N: DBD1-UP) 631ESeries II (S/N: 1AB1-UP) 631G (S/N: DFA1-UP; DXE1-UP) 637G (S/N: DFJ1-UP) 657G (S/N: W1B1-UP; W1C1-UP)

Description of Change: An improved Transmission Harness, change level 02 or higher, is now used on the machines that are listed above. The new transmission harness has a potting compound on the back of the Amphenol connector that protects the sockets/pins from corrosion. This eliminates erratic transmission shifting and activation of the CID 700, FMI 02 diagnostic code.

Show/hide table




Illustration 1	g03333870
Current design and location of corrosion

Show/hide table




Illustration 2	g03333871
Location of Transmission Sensor and Harness

Show/hide table




Illustration 3	g03333872
Improved design

Adaptable To: The new part number is listed in Table 1.

Show/hide table

Table 1
Qty	Part Number	Description
1	324-0843	Transmission Harness As

Note: Some machines may require the Transmission Position Sensor be updated with part number 338-1462 Position Sensor Gp, or 338-1488 Position Sensor Gp to accommodate the improved connector design. Check SIS Web for latest part information.The new 324-0843 Transmission Harness As is adaptable to and effective with the serial numbers that are listed in Table 2.

Show/hide table

Table 2
Sales Model	Adaptable Serial Number	Effective Serial Number
621G	S/N:DBB1-732	S/N:DBB733-UP
	S/N:KJW1-89	S/N:KJW90-UP
	S/N:DXB1-205	S/N:DXB206-UP
623G	S/N:DBC1-533	S/N:DBC534-UP
627G	S/N:DBD1-983	S/N:DBD984-UP
631E Series II	S/N:1AB1-76001	S/N:1AB76002-UP
631G	S/N:DFA1-485	S/N:DFA486-UP
631G	S/N:DXE1-142	S/N:DXE143-UP
637G	S/N:DFJ1-502	S/N:DFJ503-UP
657G	S/N:W1B1-165	S/N:W1B166-UP
657G	S/N:W1C1-317	S/N:W1C318-UP
735	S/N:B1N1-29297	S/N:B1N29298-UP
740	S/N:B1P1-6574	S/N:B1P6575-UP
740	S/N:WWD1-485	S/N:WWD486-UP
740 EJECTOR	S/N:B1R1-544	S/N:B1R545-UP
769C	S/N:01X1-78004	S/N:01X78005-UP
769D	S/N:BBB1-78001	S/N:BBB78002-UP
770	S/N:BZZ1-820	S/N:BZZ821-UP
771D	S/N:BCA1-76001	S/N:BCA76002-UP
772	S/N:RLB1-849	S/N:RLB850-UP
773D	S/N:7CS1-80001	S/N:7CS80002-UP
773D	S/N:NBJ1-645	S/N:NBJ646-UP
773E	S/N:ASK1-974	S/N:ASK975-UP
775E	S/N:DTE1-39020	S/N:DTE39021-UP
777B	S/N:4YC1-78002	S/N:4YC78003-UP
777C	S/N:4XJ1-78002	S/N:4XJ78003-UP
777D	S/N:FKR1-2051	S/N:FKR2052-UP
789C	S/N:2BW1-83001	S/N:2BW83002-UP
AD30	S/N:DXR1-77008	S/N:DXR77009-UP
AD45B	S/N:CXM1-530	S/N:CXM531-UP
AD55	S/N:ANW1-77010	S/N:ANW77011-UP
AD55	S/N:DNW1-77011	S/N:DNW77012-UP
SPF343C	S/N:RTX1-894	S/N:RTX895-UP
TH48-E80	S/N:FRT1-1436	S/N:FRT1437-UP
TH55 - KRESS	S/N:KCH1-22057	S/N:KCH22058-UP