A Stronger Secondary Air Filter Is Now Available For F and F2 Series Backhoe Loaders {1051, 1054} Caterpillar

A Stronger Secondary Air Filter Is Now Available For F and F2 Series Backhoe Loaders {1051, 1054} [M0066588]

AIR INLET AND EXHAUST SYSTEM

AIR CLEANER GP

A Stronger Secondary Air Filter Is Now Available For F and F2 Series Backhoe Loaders {1051, 1054}

Backhoe Loader
415F2 (S/N: HWA1-UP)
415F2 IL (S/N: PF41-UP)
416F (S/N: KSF1-UP; LWT1-UP)
416F2 (S/N: LYA1-UP; HWB1-UP; LBF1-UP)
420F (S/N: LTG1-UP; LKH1-UP; JWJ1-UP; SKR1-UP)
420F2 (S/N: LBS1-UP)
420F2 IT (S/N: LYC1-UP; HWD1-UP)
420F2 ST (S/N: LYB1-UP; HWC1-UP)
422F (S/N: LRH1-UP)
422F2 (S/N: LYF1-UP)
427F2 (S/N: HWK1-UP)
428F (S/N: LBH1-UP; RAK1-UP; SJW1-UP)
428F2 (S/N: LYG1-UP; HWN1-UP)
430F (S/N: RDF1-UP; LNH1-UP; RGS1-UP; LDY1-UP)
430F2 IT (S/N: LYE1-UP; HWG1-UP)
432F (S/N: SEJ1-UP; LNR1-UP; PXR1-UP)
432F2 (S/N: LYJ1-UP; HWP1-UP)
434F (S/N: LDH1-UP; MTR1-UP; FLY1-UP)
434F2 (S/N: LYK1-UP; HWR1-UP)
444F (S/N: LJJ1-UP; FBN1-UP; JXR1-UP)
444F2 (S/N: LYL1-UP; HWS1-UP)
450F (S/N: HJR1-UP)

Description Of Change: A stronger secondary air filter is now available for certain Series F and Series F2 Backhoe Loaders. Two deep glue beads have been added to the paper pleats to stop them from collapsing and a central bar has been added. This makes the new secondary air filters are more durable, able to withstand higher dust loading, and will increase the service life of the machine.

Adaptable To:

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Illustration 1	g06017666
View of filters (A) Previous style secondary air filter (B) New secondary air filter

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Illustration 2	g06018383
View of deep glue beads (C) Deep glue beads

Install the new secondary air filter and discard the pervious filter.

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Table 1
Required Parts
Item	Qty	Part Number	Part Description	Former Part Number
1	1	346-6688	Air Filter Element	346-6688

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Table 2
Sales Model	Adaptable To:	Effective In Production With:
415F2	S/N:HWA1-50177 S/N:PF41-400222	S/N:HWA50178-UP S/N:400223-UP
416F	S/N:LBF1-1167 S/N:LWT1-785	S/N:LBF1168-UP S/N:LWT786-UP
416F2	S/N:HWB1-728 S/N:LYA1-253	S/N:HWB729-UP S/N:LYA254-UP
416F ST	S/N:KSF1-2254	S/N:KSF2255-UP
420F	S/N:LBS1-187 S/N:LKH1-516 S/N:LTG1-2342	S/N:LBS188-UP S/N:LKH517-UP S/N:LTG2343-UP
420F2	S/N:HWC1-1123 S/N:LYB1-516	S/N:HWC1124-UP S/N:LYB517-UP
420F2 IT	S/N:HWD1-890 S/N:LYC1-269	S/N:HWD891-UP S/N:LYC270-UP
420F IT	S/N:JWJ1-3288	S/N:JWJ3289-UP
420F ST	S/N:SKR1-45157	S/N:SKR45158-UP
422F	S/N:LRH1-2375	S/N:LRH2376-UP
422F2	S/N:LYF1-564	S/N:LYF565-UP
427F2	S/N:HWK1-223	S/N:HWK224-UP
428F	S/N:LBH1-33976 S/N:RAK1-610 S/N:SJW1-707	S/N:LBH33977-UP S/N:RAK611-UP S/N:SJW708-UP
428F2	S/N:HWN1-402 S/N:LYG1-943	S/N:HWN403-UP S/N:LYG944-UP
430F	S/N:LDY1-281 S/N:LNH1-208	S/N:LDY282-UP S/N:LNH209-UP
430F2	S/N:HWE1-403 S/N:LYE1-179	S/N:HWE404-UP S/N:LYE180-UP
430F2 IT	S/N:HWG1-322 S/N:LYE1-184	S/N:HWG323-UP S/N:LYE185-UP
430F IT	S/N:RGS1-762	S/N:RGS763-UP
430F ST	S/N:RDF1-870	S/N:RDF871-UP
432F	S/N:LNR1-1187 S/N:PXR1-893 S/N:SEJ1-895	S/N:LNR1188-UP S/N:PXR894-UP S/N:SEJ896-UP
432F2	S/N:HWP1-580 S/N:LYJ1-312	S/N:HWP581-UP S/N:LYJ313-UP
434F	S/N:FLY1-263 S/N:LDH1-947 S/N:MTR1-241	S/N:FLY264-UP S/N:LDH948-UP S/N:MTR242-UP
434F2	S/N:HWR1-189 S/N:LYJ1-312	S/N:HWR190-UP S/N:LYJ313-UP
444F	S/N:FBN1-246 S/N:JXR1-346 S/N:LJJ1-528	S/N:FBN247-UP S/N:JXR347-UP S/N:LJJ529-UP
444F2	S/N:HWS1- S/N:LYL1-	S/N:HWS-UP S/N:LYL-UP
450F	S/N:HJR1-452	S/N:HJR453-UP