2013/07/17 Caterpillar

Pipelayer:

572RSeries II (S/N: DSC1-UP)

572R (S/N: AAC1-UP; 2HZ1-UP)

Track-Type Tractor:

D7HSeries II (S/N: 2SB1-UP; 4AB1-UP; 5WB1-UP)

D7HSeries II DS PS (S/N: 5BF1-UP)

D7HSeries II (S/N: 2RG1-UP; 3XG1-UP)

D7HSeries II DS PS LGP (S/N: 4FG1-UP)

D7HSeries II PS LGP (S/N: 79Z1-UP; 80Z1-UP)

D7HSeries II (S/N: 82Z1-UP)

D7H DD (S/N: 77Z1-UP)

D7RSeries II STD (S/N: AEC1-UP)

D7RSeries II LGP FTC (S/N: AFG1-UP)

D7RSeries II DS LGP (S/N: ABJ1-UP)

D7RSeries II LGP FTC (S/N: BNM1-UP)

D7RSeries II DS STD (S/N: BRM1-UP)

D7RSeries II STD FTC (S/N: BRP1-UP; ACS1-UP)

D7RSeries II DS LGP (S/N: BNX1-UP)

D7R (S/N: 9HM1-UP; 2EN1-UP; 3DN1-UP; 2HR1-UP; 3ZR1-UP; 4SR1-UP; 5MR1-UP; 6ER1-UP; 5KZ1-UP)

Description of Change: The D7 size track idlers with a tread diameter of 628.0 mm (24.72 inch) have changed from a cast to a fabricated design. These idlers are used on D7R STD and D7R LGP tractors, as well as 572R Pipelayers. The fabricated track idler is visually identified by flat side plates with four gusset welds per side. See Illustration 1.

Adaptable To:
The new fabricated track idler is adaptable to the machines listed above.

Illustration 1	g03399465
New Fabricated Design (A) Four gusset welds per side

Illustration 2	g03400735
Former Cast Design (Raised letters on Web)

The new 192-0220 Track Idler Gp is a direct replacement for the former 192-0216 Track Idler Gp and uses the same internal components and mounting hardware as the former part.

The new 192-0220 Track Idler Gp uses the same Custom Track Service wear charts and has similar tread wear characteristics as the former part.

Note: The 197-7754 Track Idler Gp that is used in landfill applications retains the same part number. However, 197-7754 Track Idler Gp now uses the fabricated idler assembly instead of the cast.