PSP FOR INSTALLING A HIGHER CAPACITY AIR CLEANER GROUP ON CERTAIN HIGH PERFORMANCE 3412 MARINE ENGINES - PS4653 - MAILED US AND CANADA, CACO, CFEL, COSA, MARINE TEPS, LIMITED COFA Caterpillar


PSP FOR INSTALLING A HIGHER CAPACITY AIR CLEANER GROUP ON CERTAIN HIGH PERFORMANCE 3412 MARINE ENGINES - PS4653 - MAILED US AND CANADA, CACO, CFEL, COSA, MARINE TEPS, LIMITED COFA

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Caterpillar: Confidential Yellow

PSP FOR INSTALLING A HIGHER CAPACITY AIR CLEANER GROUP ON CERTAIN HIGH PERFORMANCE 3412 MARINE ENGINES - PS4653 - MAILED US AND CANADA, CACO, CFEL, COSA, MARINE TEPS, LIMITED COFA

NOTE:   The information supplied in this service letter may not be valid after the termination date of this program.   Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.




May 3, 1991
U-88
A-63
AU-50.2
E-55
O-65
TM-8
PRODUCT SUPPORT PROGRAM FOR INSTALLING A HIGHER CAPACITY AIR CLEANER GROUP ON
CERTAIN HIGH PERFORMANCE 3412 MARINE ENGINES
1051   PS4653
NOTE: This Program can be administered either before or after a
failure. In either case the decision whether to apply the Program
is made by the dealer. When reporting the repair, use "PS4653"
as Part Number, "7755" as Group Number, and "96" as Description
Code.

Termination Date

May 31, 1992

Problem

The existing panel type air cleaner on certain high performance 3412 Marine
Engines may not have sufficient air flow capacity for operation under full
load if the inlet restriction is at or near the maximum allowable restriction
of 30 inches of water.

Affected Product

Model Identification Number
3412* 60M2477, 2574, 2575, 2577, 2580, 2663, 2669, 2767, 2820, 2826,
2856, 2857, 2860, 2864, 2866, 2963, 2965, 2988, 2992, 3001,
3063, 3068, 3074, 3149, 3152, 3170, 3174, 3194, 3198, 3276,
3279, 3290, 3299, 3546, 3549, 3657, 3667, 3668, 3680, 3698,
3704, 3706,
3709, 3710, 3712, 3713, 3826, 3833, 3837, 3844, 3859, 3871,
3876, 3879, 3881, 3884, 3886, 3908, 3914, 3929, 3954, 3956,
3959, 3961, 3982, 3983, 4004, 4008, 4050, 4083, 4098, 4102,
4126, 4128, 4134, 4144, 4172, 4173, 4175-4179, 4182, 4216,
4217, 4220, 4230, 4238, 4241, 4242, 4247, 4248, 4283, 4287,
4292, 4297, 4307, 4314, 4315, 4317, 4318, 4326, 4327, 4357,
4365-4368, 4372, 4378, 4405, 4408, 4410, 4412, 4414, 4415,
4418, 4419, 4421, 4425, 4426, 4427, 4447, 4448, 4457, 4458,
4473-4476.
* Equipped with PA1122 Engine Pricing Arrangement - 3412 DITA Marine Engine
for heat exchanger cooling

Parts Needed

3 - 1A2029 Bolt 1 - 8N3378 Air Cleaner Gp.
2 - 3B1915 Bolt 2 - 5P4869 Clamp
1 - 3B6552 Elbow 4 - 5P8247 Washer
2 - 1D4717 Nut  6 - 0S1566 Bolt
2 - 1D4718 Nut  2 - 0S1588 Bolt
2 - 1D4720 Nut  4 - 2S7593 Washer
4 - 6F7047 Washer  6 - 4S9191 Washer
2 - 1K7091 Washer  2 - 0T0772 Bolt
2 - 0L1143 Bolt 1 - 1W5466 Hose
7 - 0L1351 Bolt 1 - 1W5471 Bracket As.
1 - 0L1352 Bolt 1 - 2W2217 Brace
1 - 5L3233 Fitting 1 - 2W2219 Plate
1 - 8L5008 Elbow 1 - 2W2221 Plate As.
16 - 5M2894 Washer  1 - 2W2266 Bracket
1 - 8N1185 Plate 1 - 2W3826 Brace
1 - 8N2555 Filter-Soot 1 - 2W4567 Bracket
1 - 8N2694 Indicator  1 - 2W4568 Brace
The following are required only if the engine is equipped with a 5N3221 Air
Inlet Adapter Group (and 178 mm (7") ducting).
24 - 2B2695 Bolt
48 - 9M1974 Washer
1 - 5N7824 Adapter As.
1 - 5N7830 Gasket
24 - 314155 Locknut
254 mm (10") Ducting Material

Action Required

Remove the existing panel type air cleaner group and mounting hardware.
Install the new canister type air cleaner group and hardware.
If so equipped, remove the inlet adapter group and 178 mm (7") ducting.
Install the new adapter group and 254 mm (10") ducting.
****** IMAGE: SEBE4581.00001.001
CAPTION:

Service Claim Allowances

Product Caterpillar Dealer Suggested Customer Suggested
smu/age Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs.
0-4000 100% 2 0 0 0 0
0-36 mo
4001-6000 50% 1 0 0 50% 1
37-48 mo
NOTE: This is a 2-hour job to install the new canister type air cleaner
group.
The following will only be allowed if the engine is installed in a vessel and
equipped with 178 mm (7") ducting.
A maximum of 2 additional hours labor will be allowed if
installation of the new adapter group and 254 mm (10") ducting is
required.
A maximum of $200.00 U.S. will be allowed for sheet metal for
each engine. Dealers must submit an invoice for the new ducting
materials

Parts Disposition

Handle the parts in accordance with your Warranty Bulletin on warranty parts
handling.

Caterpillar Information System:

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