2012/02/01 Caterpillar

A New Air Hose and a New Solenoid Valve Manifold Are Used for the Air Shutoffs on Certain 3512C and 3516C Petroleum Engines {1078, 1078}

Usage:

3512C R1S

Engine: 3512C (S/N: R1S1-UP) 3516C (S/N: SBJ1-UP)

Description of Change: The previous air lines included a hose with both an inlet and an outlet that could be connected to the air shutoff solenoid valve. When the hose was installed incorrectly, the engine would shut off after pressure was built upon start-up. The new air lines have hose connections that only allow correct assembly.

Adaptable To:

The new air lines are adaptable to the above engines back to first production.

The new parts and the previously used parts are identified in Illustration 1 and in Table 1. The previously used parts are not canceled.

Note: There is no need to replace the existing parts if the parts are assembled correctly.The new parts are affective with the R1S00899:

Show/hide table




Illustration 1	g02801426
(1) 381-0676 Air Shutoff Valve and Mounting (2) 385-0972 Hose As

Show/hide table

Table 1
New Parts	Previously Used Parts
381-0676 Air Shutoff Valve and Mounting	152-2700 Air Shutoff Valve and Mounting
385-0972 Hose As	125-4369 Hose As

Show/hide table

Table 2
Parts of the New 381-0676 Air Shutoff Valve and Mounting	Parts of the Previously Used 152-2700 Air Shutoff Valve and Mounting
381-0677 Valve Manifold	7T-9745 Valve Manifold
152-8341 Solenoid Valve Gp
8C-5223 Seal Plug

Caterpillar Information System:

Air and Gas Starting for G3300B Engines{1451} Air and Gas Starting for G3300B Engines{1451}

C2.6 and C3.3B Tier 2 and EU Stage 2 Engines for Caterpillar Built Machines Fuel System - Inspect

C1.5 and C2.2 Industrial Engines Crankcase Breather (Canister) - Replace

3516C Generator Set Engines Coolant Level Is Low

2011/12/19 A New Pipe Nipple Is Used in the Fuel Lines for G3606 and G3608 Engines {5479}

2012/01/12 A New High Pressure Fuel Pump and Adapter Are Used on C175-16 Petroleum Engines {1251, 1251, 1290}

C13 Engine for Combat and Tactical Vehicles Piston and Rings

C13 Engine for Combat and Tactical Vehicles Piston and Rings

C13 Engine for Combat and Tactical Vehicles Piston and Rings

2011/12/21 New Improved Power Train Control Processor Software Is Now Used on Certain Marine Engines {7610, 7620}

Cleaning Components with Carbon Dioxide (CO<SUB>2</SUB>) {0680, 1000, 7000} Cleaning Components with Carbon Dioxide (CO<SUB>2</SUB>) {0680, 1000, 7000}

Early Hour Wear of Piston Rings and Cylinder Liners due to Neglect of Air Cleaner Maintenance on Certain 3512C Petroleum Engines{1201, 1225} Early Hour Wear of Piston Rings and Cylinder Liners due to Neglect of Air Cleaner Maintenance on Certain 3512C Petroleum Engines{1201, 1225}

2011/12/21 Fuel Injection Pump on C3.3 and C4.4 (Mech) Generator Sets {1251}

3516C and C175-16 Engines Selective Catalytic Reduction Dosing Control System Operation

3516C and C175-16 Engines Selective Catalytic Reduction Warning Operation

3516C and C175-16 Engines Selective Catalytic Reduction Event Codes

C1.7, C1.8 and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built Machines Cylinder Head Valves

C2.6 and C3.3B Tier 2 and EU Stage 2 Engines for Caterpillar Built Machines Excessive Engine Oil Consumption - Inspect

2012/01/06 Air Compressor on 3054, 3054B, 3054C, 3054E, 3056, 3056E, C3.3, C3.4, C4.4, C4.4 (Mech), C6.6 and C7.1 Engines {1803}

C27 PET GEN SET Electric Power Generation and C27 KNOCKDOWN K Petroleum Power Train Package Generator Operation

2012/02/27 A New Air Inlet Housing and Support Bracket Are Used on 3616 and C280-16 Engines {1052, 1071}

C18 Generator Set Maintenance Interval Schedule

UPS 120, UPS 150, UPS 250 and UPS 300 Uninterruptible Power Supplies Safety Signs and Labels

2012/01/06 The Drain Plugs for Horizontally Mounted Jacket Water Heaters Are Shipped Loose for 3500 and C175 Engines {1383, 7553}