Fuel Line Modification Required When Replacing C27/C32 Engine Lines Group on Certain Wheel Loaders and Wheel Dozers {1261, 1274} Caterpillar

Wheel Dozer

844K (S/N: MBE1-100; KLS1-407)

854K (S/N: KK31-204; RM31-251; H9K1-UP; H8M1-UP)

Wheel Loader

990K (S/N: DJK1-259; A9P1-364)

992K (S/N: 8801-UP; KK21-111; RM21-153; ZMX1-UP)

Description Of Change: Fuel line modifications are required when replacing the C27/C32 Engine for the machines listed above.

Adaptable To: Fuel line modifications are adaptable to the products within the listed serial numbers, and are effective with all products after the listed serial numbers.

Modification Procedure for 990K Wheel Loaders and 844K Wheel Dozers

Perform this modification procedure when replacing the original engine with one of the engines listed in Table 1.

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Illustration 1	g06221104
(1) 6V-8946 Reducer (2) 228-7092 O-Ring Seal (A) 500-4480 Tube As (B) 415-5634 Hose As

1. Install reducer (1) between tube assembly (A) and hose assembly (B), seal reducer with O-Ring seal (2).
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   Illustration 2	g06221106
   (C) 326-4515 Cable Tie (D) 200-6345 Mount

2. Remove two cable ties (C) and one mount (D).

Modification Procedure 992K Wheel Loaders and 854K Wheel Dozers

Perform this modification procedure when replacing the original engine with one of the engines listed in Table 3.

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Illustration 3	g06221109
(A) 500-4480 Tube As (B) 203-6688 Connector (C) 228-7092 O-Ring Seal (D) 228-7093 O-Ring Seal (E) 312-1104 Hose and Tube As

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Illustration 4	g06221111
(B) 203-6688 Connector

1. Remove connector (B), O-Ring seal (C), and O-Ring seal (D) between tube assembly (A) and hose assembly (E).