A New Valve Mechanism Cover and Elbows Are Now Used on Certain 3412, C27, and C32 Machine Engines {1107} Caterpillar

Hydraulic Shovel

6015B (S/N: LWN1-UP; WSN1-UP)

6020B (S/N: DNR1-UP)

6030 (S/N: DHL1-UP)

6030 FS (S/N: DHG1-UP)

6040 (S/N: DHJ1-UP)

6040 FS (S/N: DHX1-UP)

Track-Type Tractor

D10T (S/N: RJG1-UP)

D10T2 (S/N: RAB1-UP; JJW1-UP)

D11T (S/N: AMA1-UP; GEB1-UP; TPB1-UP; MDG1-UP; JEL1-UP; JNS1-UP)

Wheel Dozer

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

854K (S/N: 2211-UP; H8M1-UP)

Wheel Loader

990H (S/N: BWX1-UP)

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

991K (S/N: 5301-UP)

992K (S/N: 8801-UP; H4C1-UP; ZMX1-UP)

993K (S/N: LWA1-UP; Z4D1-UP; Z9K1-UP; Z4Z1-UP)

Description Of Change: The new valve mechanism cover and elbows prevent oil from leaking.

Adaptable To: The new 492-1760 Valve Mechanism Cover replaces the former 437-0128 Valve Mechanism Cover and the 448-3694 Valve Mechanism Cover.

The new 481-3211 Elbow replace the former 345-2011 Elbow.

The new 482-0106 Elbow replace the former 345-2012 Elbow.

Note: This information will apply to repowered D10N, D10R, D11N, or D11R Track-Type Tractors.

The new valve mechanism cover and elbows are adaptable to the above machine engines back to first production.

This change is effective for machines engines built in the factory on or after 12 October 2016.

The new and former parts are listed in Table 1.

Illustration 1	g06129319
Former valve mechanism cover

Illustration 2	g06129331
New valve mechanism cover (1) 492-1760 Cover As (2) 033-6031 O-Ring Seal (3) 126-0559 Bolt (4) 481-3211 Elbow (5) 061-9457 O-Ring Seal

Illustration 3	g06129352
New valve mechanism cover (1) 492-1760 Cover As (3) 126-0559 Bolt (5) 061-9457 O-Ring Seal (6) 6V-3831 O-Ring Seal (7) 482-0106 Elbow