881900T Mercury MOUNT

Introduction
Do not perform any procedure in this Special Instruction until you read this information and you understand this information. New Cat 270 Air Compressors are no longer available from the supplier. The Cat 270 air compressor can be replaced with a Bendix BA-921 air compressor.Important Safety Information
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Do not disconnect the air lines until the air pressure in the system is at zero. If hose is disconnected under pressure it can cause personal injury.
Parts Needed for C13 Engine
Table 1
Part Number     Description     Quantity     Where Used    
351-7089     Air Compressor Gp     1     Air Compressor    
223-3505     Seal     1     Air Compressor (Front Flange)    
5P-8245     Hard Washer     3     Air Compressor Mounting hardware    
6V-8197     Bolt     3     Air Compressor Mounting hardware    
302-7410     Hose     180 cm     Air supply    
8T-1117     Hose Clamp     2     Air supply    
5P-1230     Connector     1     Air supply Compressor end    
6V-5050     O-Ring Seal     2+1 (1)     Air supply Compressor end    
3E-4041 (1)     Elbow     1     Air supply (Elbow on turbo air intake elbow) Boosted app    
9S-8008 (1)     O-Ring Plug     1     Air supply (Plug intake manifold port) Boosted app    
379-8582     Tube As     1     Coolant return    
118-4728     Elbow     1     Coolant return (Compressor end)    
8M-0505     Connector     1     Coolant return (Thermostat Housing)    
319-8815     Hose     28 cm     Coolant supply    
9X-2488     Hose Clamp     3     Coolant supply (Use 3 for design A and 2 for design B    
6V-6609     O-Ring Seal     4     Coolant supply and return    
6V-1230     Elbow     1     Coolant supply 45 deg (compressor end) (F/UW design B)    
034-3679 (2)     Fitting     1     Coolant supply straight fitting (compressor end) (F/UW design A)    
295-1842     Adapter Kit     1     Governor adapter    
6N-8659     Hose As     1     Oil supply    
351-7088     Bracket     1     Rear support bracket    
6V-4248     Bolt     4     Rear support bracket mounting hardware    
6V-5839     Washer     4     Rear support bracket mounting hardware    
( 1 ) Additional parts needed for retrofit of air compressor on 2006 engines with boosted air supply
( 2 ) Use when the governor is mounted to the air compressor. Not required when governor is remote mounted.Step by Step Procedure for C13 Engines
Refer to the correct Disassembly and Assembly, "Air Compressor - Remove and Install" to remove the air compressor
Follow normal procedure of uninstalling the CAT 270 air compressor.
Install all connectors into the air compressor ports finger-tight. Some ports might not be accessible after the air compressor is installed on the engine. After the lines are installed, and all connector orientations are fixed, tighten all connectors that were initially finger-tightened to standard torque.
Illustration 1 g02680398
To ease installation later, connect the air compressor end of the oil supply line hose (1) to the connector in the oil port. Then install the BA-921 CR air compressor on the engine.
Install the BA-921 CR air compressor on the engine.
Install the rear support bracket. Refer to ""Rear Support Bracket"" for a detailed explanation.
Install the coolant supply line. Refer to ""Coolant Supply Line"" for a detailed explanation.
Install the coolant return line. Refer to ""Coolant Return Line"" for a detailed explanation.
Install the oil supply line. Refer to ""Oil Supply Line""for detailed explanation.
Install the air inlet line by using the bulk hose provided. Refer to ""Air Inlet Line"" for a detailed explanation.
Install the air discharge line. A new line is needed if the line is too short, or if the discharge line is a hard tube.
Install the governor line (for governor remote mount), or install the governor with the adapter kit (for governor direct mount) on the air compressor.Rear Support Bracket