BREATHER 9G9981 - Caterpillar

Engine:
3508B (S/N: S2A1-UP; S2B1-UP; S2D1-UP; S2E1-UP; S2F1-UP)
3508C (S/N: TTA1-UP; TTB1-UP)
3512B (S/N: S2G1-UP; S2H1-UP; S2J1-UP; S2K1-UP; S2L1-UP; S2M1-UP; S2N1-UP)
3512C (S/N: TTC1-UP; TTF1-UP; TTG1-UP; MKH1-UP; SLM1-UP; E3W1-UP; E3X1-UP; E3Y1-UP)
3516B (S/N: S2P1-UP; S2R1-UP; S2S1-UP; S2T1-UP; S2W1-UP; S2X1-UP; S2Y1-UP; S2Z1-UP)
3516C (S/N: TTD1-UP; PAG1-UP; TTJ1-UP; JTS1-UP; E3Z1-UP)
Petroleum Engine:
3512C (S/N: LLB1-UP; LLF1-UP)
3516C (S/N: PES1-UP)
Description of Change: The new bracket is more robust and provides a longer service life.Adaptable To: The 422-7605 Bracket As replaces the 291-6227 Bracket As on the engines that are listed above.The 422-7605 Bracket As is adaptable to the engines back to first production. Effectivity is listed in Table 1.
Table 1
Sales Model    Effective Serial Number    
3508B     S/N:S2A00183-UP
S/N:S2B00820-UP
S/N:S2D00274-UP
S/N:S2E00849-UP
S/N:S2F00126-UP    
3508C     S/N:TTA00275-UP
S/N:TTB00549-UP    
3512B     S/N:MKH00281-UP
S/N:S2G00403-UP
S/N:S2H00620-UP
S/N:S2J00780-UP
S/N:S2K00376-UP
S/N:S2L00982-UP
S/N:S2M00203-UP
S/N:S2N00132-UP    
3512C     S/N:E3W00333-UP
S/N:E3X00276-UP
S/N:E3Y00318-UP
S/N:LLB00150-UP
S/N:LLF00490-UP
S/N:SLM00492-UP
S/N:TTC00589-UP
S/N:TTF00548-UP
S/N:TTG00294-UP    
3516B     S/N:PAG00483-UP
S/N:S2P00248-UP
S/N:S2R00788-UP
S/N:S2S00495-UP
S/N:S2T00116-UP
S/N:S2W00150-UP
S/N:S2X01693-UP
S/N:S2Y00117-UP    
3516B HD     S/N:S2Z00435-UP    
3516C     S/N:E3Z00206-UP
S/N:JTS00408-UP
S/N:PES00789-UP
S/N:TTD00403-UP
S/N:TTJ00458-UP    The new parts required for installation are listed in Table 2.
Table 2
Qty    New Part Number    
8     0S-1588 Bolt    
6     2W-8604 Washer    
4     5M-2894 Hard Washer    
6     5P-0537 Hard Washer    
6     7B-8167 Bolt    
6     9S-8750 Nut    
4     9S-8752 Full Nut    
8     9X-6458 Hard Washer    
1     422-7605 Bracket As    
Illustration 1 g03360467
(1) 422-7605 Bracket As (2) 235-2763 Bracket (3) 7B-8167 Bolt (4) 5P-0537 Hard Washer (5) 2W-8604 Washer (6) 9S-8750 Nut (7) 0S-1588 Bolt (8) 9X-6458 Hard Washer (9) 1W-8129 Support
Remove the original 291-6227 Bracket As from brackets (2) and supports (9) .
Attach bracket (1) to brackets (2) with two bolts (7) and two washers (8) per bracket.Note: Callouts 3 through 6 are for mounting the instrument panel to bracket (1) .
Illustration 2 g03360471
(1) 422-7605 Bracket As (3) 7B-8167 Bolt (4) 5P-0537 Hard Washer (5) 2W-8604 Washer (6) 9S-8750 Nut (7) 0S-1588 Bolt (9) 1W-8129 Support (10) 5M-2894 Hard Washer (11) 9S-8752 Full Nut
Attach bracket (1) to supports (2) with two bolts (7), two washers (8), and two nuts (11) per support.Note: Callouts 3 through 6 are for mounting the instrument panel to bracket (1) .