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3508C Propulsion Engine
A3 Electronic Control Unit (ECU)
• One of the most advanced electronic control systems available for Cat marine engines.
• Faster with more memory capability than ADEM 2
• Compatible with several optional display systems
• Does not require fuel cooling
• Enhanced input/output capacity
• Rugged marine design and IP66 connectors
• Award-winning circuitry design
Engine-Mounted Instrument Panel
• Integrated MPD display for quick response and effective local control
• Optional local speed control
• Optional individual cylinder exhaust temperature scanner with data link for remote mounting
• Local E-stop, warning indicators, horn
• Plug & Run connections allow mounting on port or starboard side of engine
Marine Power Display (MPD)
• Graphic display of engine operating parameters in analog, digital, or bar-chart format
• Rugged weatherproof construction
• Fully user-configured display screens
• Marine classification society-type approved
• Diagnostic messages and alarms
• Three-tier prioritization of events and diagnostics
• Multilingual capability
• Night-mode LCD display
• ISO symbols for parameter identification
High Capacity High Efficiency Turbos
• Standard marine twin turbocharger configuration.
• More reserved power for superior part load performance at continuous ratings
• Turbos tuned for high power and excellent fuel consumption
Engine-Mounted Cat® Plate-Type Heat Exchanger
• Separate Circuit Aftercooled (SCAC)
• Single heat exchanger for both jacket water and aftercooler systems
• Single inlet and outlet connections for sea water
• Lightweight and compact
• Factory-installed piping and connections
Rigid Wiring Harness
• Highly durable: long service life
• Flexibility for custom wire additions
• Lined with fire retardant foam
• Cost efficient replacement for premium wiring
• Marine classification society approved
Power Distribution Box
• Isolates “control power” from alternator/starter/jacket water heater power
• Mountable off engine
• Allows end user to choose up to three independent power sources
• Has built-in circuit breakers and switches for easy troubleshooting
Marine Classification Society Approvals
• ABS/DNV/LR/GL/CCS/BV/RINA
Electronic Features
• 3D histogram data of engine operation (load, speed, time)
• Load feedback signal for CPP operation
• Electronic torque limit for re-power and torque limited application equipment
• Programmable droop
• Adjustable governor gains
• Condition-based maintenance
• Monitoring features
• Serial data bus communications
• Primary and secondary A3 controllers on all propulsion engines
Cat Pilot House Panels
• Cat pilot house panels with or without Marine Power Display (MPD)
• Easily connected to the engine customer connector
• Ability to have full function helm panels and reduced function wing panels
Unit Injectors
• Caterpillar designed and built system
• “Drop-in” installation
• No threaded fuel connections
• High pressure only inside injector does not require double wall lines or leak collection devices
Power Take-off
• Power take-off adapters available
• Auxiliary drives for power take-offs for hydraulic pumps and compressors
Engine-Mounted Gear-Driven Pumps
• Standard engine-mounted aftercooler pump
• Standard engine-mounted jacket water pump
• Optional engine-mounted, gear-driven, high capacity sea water pump
Engine Mounting System
• Rigid mounting points
• Optional resilient mounting
In-Hull Overhaul
• Easily removable side covers
• Accessible bearing caps
| Power Rating | |
|---|---|
| Power Range | 775-1100 bhp (578-820 bkW) |
| Engine Specifications | |
|---|---|
| Speed Range | 1200-1600 rpm |
| Emissions | IMO II, EU IW |
| Aspiration | TTA |
| Bore | 170 mm (6.7 in) |
| Stroke | 190 mm (7.5 in) |
| Displacement | 34.5 l (2107 inu00b3) |
| Rotation from Flywheel End | Counterclockwise or Clockwise |
| Configuration | Vee 8, 4-Stroke-Cycle Diesel |
| Dimensions & Weights | |
|---|---|
| Minimum Dry Weight | 4960 kg (10935 lb) |
| Length | 2117 mm (83.4 in) |
| Height | 1829 mm (72 in) |
| Width | 1703 mm (67 in) |
Standard Equipment
- Fuel System
- Fuel filter, RH, with service indicators.
- Fuel transfer pump.
- Electronically controlled init injectors
- Instrumentation
- Graphical Unit (Marine Power Display) for analog or digital display of
- Lube System
- Crankcase breather, Top mounted
- Oil filter, RH, with service indicators
- Oil filler and dipstick, RH
- Standard sump oil pan (500 Hour oil change interval)
- Oil pump, gear type
- Mounting System
- Rails, engine mounting, ledge type, 203 mm x 203 mm (8 in x 8 in)
- Power Takeoffs
- Accessory drive
- Front housing, two-sided
- Protection System
- A4 ECU Electronic Monitoring System provides customer programmable engine de-rate strategies to protect against adverse operating conditions
- AIII Electronic Monitoring System provides customer programmable engine de-ration strategies to protect against adverse operating conditions
- Emergency stop push button (located in Electronic Instrument Panel) Safety shutoff protection:
- General
- Vibration damper and guard
- Lifting eyes
- Paint, Caterpillar Yellow engine with black rails
- NOTE: Engines for heat exchanger cooling do NOT include heat exchanger.
- Flywheel and Flywheel Housing
- Flywheel, SAE No. 0, 151 teeth.
- Flywheel housing, SAE No. 0.
- Air Inlet System
- Separate circuit aftercooler core, corrosion resistant coated (air side)
- Air cleaner, regular duty
- Dual turbochargers, 152 mm (6 in) OD straight connection
- Control System
- Dual Caterpillar A-III Electronic Engine Control, LH with Electronic Unit Injector Fuel System
- Rigid Wiring Harness (10 amp DC power required to drive Electronic Engine Control Module)
- Cooling System
- Oil cooler
- Thermostats and housing, Full open temperature 92 C (198 F)
- Jacket water pump, gear driven, centrifugal
- Auxiliary fresh water pump with SCAC engines
- Auxiliary sea water pump, Centrifugal, Non-self-priming
- Expansion tank
- Exhaust System
- Dry gas tight exhaust manifolds with heat shields.
- Dual turbochargers with watercooled bearings and heat shield.
- Exhaust outlet, vertical, 203 mm (8 in) round flanged.
Optional Equipment
- Charging System
- Battery Charger, 10 amp
- Charging Alternators
- Cooling System
- Water Level Switch Gauge
- Coolant Level Sensors
- Connections
- Keel Cooling Conversions
- Heat Exchangers
- Auxiliary Water Pumps
- Sea Water Pump Removal
- Coolant Shunt Tanks
- Air Separator
- Marine Gear Cooling
- Instrumentation
- PL1000T Communication Module
- Customer Interface
- Thermocouples
- Remote Panel Display
- Remote Cylinder Temperature Display
- Pilot House Instrument Panels
- Marine Gear Sensors
- Engine Vision Display System
- Mounting System
- Engine Supports
- Vibration Isolators
- Power Take-Offs
- Front Housing Accessories
- Flexible Coupling and Guards
- Upper Left Hand Front Location:
- Upper Right Hand Front Location:
- Upper Right Hand Rear Location:
- Lower Left Hand Front Location:
- Lower Left Hand Rear Location:
- Front Housing Accessory Drives
- Upper LH Accessory Drive
- Upper RH Accessory Drive
- Front Power Take Offs
- Crankshaft Pulleys
- Damper Guard Removals
- Air Inlet System
- Remote Air Inlet Adapters
- Control System
- Throttle Position Sensor
- Throttle Position Signal Conv.
- Throttle Position Sensor Removal
- Local Speed Throttle Control
- Throttle Synchronization
- Exhaust System
- Exhaust Outlet
- Flexible Fittings
- Elbows
- Flanges
- Flange and Exhaust Expanders
- Mufflers
- Lube System
- Oil Pan
- Oil Pan Accessories
- Sump Pumps
- Lubricating Oil
- Protection System
- Air Inlet Shutoffs
- Switches and Contactors
- Explosion Relief Valve
- Sensors
- Special Appearance
- Special Appearance Packages with Chrome Covers
- Chrome Plated Relief Valves
- Black Air Cleaners
- Yacht Class Finish
- Starting System
- Starting Motors or Barring Device
- Air Starting Motor Options:
- Starting Aids
- Battery Sets – 24 Volt – Dry
- Battery rack
- General
- Tool set
- Caterpillar datalink wire
- Packing
- Shrink Wrap Protection
- Storage Preservation with Glycol Solution/Vapor Corrosion Inhibitor
- Storage Preservation with Vapor Corrosion Inhibitor
- Export Packaging