A Precleaner Assembly is Now Available on Certain 320D2 320E 320F and 323D2 323E 323F Excavators {1055} Caterpillar

Excavator

320D2 (S/N: LCA1-UP; PBB1-UP; NBF1-UP; WBF1-UP; NBH1-UP; ZBH1-UP; MDJ1-UP; XAK1-UP; TDN1-UP; RAR1-UP; KBS1-UP; SDZ1-UP)

320E (S/N: SXE1-UP; DFG1-UP; TNJ1-UP; LAK1-UP; WBK1-UP; AWS1-UP; KLT1-UP; SHX1-UP; NAZ1-UP)

320F (S/N: NHD1-UP; YBM1-UP)

323D2 (S/N: YCR1-UP; TDT1-UP; KBX1-UP)

323E (S/N: RAP1-UP; YRP1-UP; TDW1-UP)

323F (S/N: P391-UP; XCF1-UP; YEJ1-UP)

OEM Mobile Hydraulic Power Unit

320D2 MHPU (S/N: K221-UP; P9X1-UP)

320E MHPU (S/N: EGX1-UP)

Service Magazine, M0065848, 17, November 2015 "A Precleaner Assembly is Now Available on Certain 320D2 320E 320F and 323D2 323E 323F Excavators" Disregard this article. Refer to the article that follows.

343-5645 Precleaner As is now available on the machines listed above. This assembly prevents the filters of the air cleaner becoming plugged within a short time period. This design extends the life of the air cleaner filters. Refer to the following rework procedure for installing the precleaner assembly.

Rework Procedure for Replacement of the Precleaner

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Illustration 1	g06012329
Layout of previous assembly (1) Air cleaner (2) Clamp (3) Rain cap assembly

1. Loosen the clamp and remove the rain cap assembly.
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   Illustration 2	g06012362
   With precleaner assembly installed (A) 11.4 mm (0.45 inch) (B) 127 mm (5.0 inch) (1) Air cleaner (2) Clamp (4) 343-5645 Precleaner As

2. Install new 343-5645 Precleaner As. Tighten the clamp to a torque of 6.8 ± 0.5 N·m (60.19 ± 4.43 lb in).

   Note: Set the blow out slit of precleaner toward the outside of machine.