Pay careful attention to the safety instructions included in the manual. As the owner of a Bukh marine engine, you become part of a worldwide network of dealers and service workshops that assist you with technical advice, service requirements and replacement parts. Contact your nearest authorized Bukh dealer for assistance.
Technical Data, page 136. About this manual Warranty Your new Bukh marine engine is covered by a limited This Operator's Manual has been prepared to give you the greatest possible benefit from your Bukh warranty, subject to the conditions compiled in the 6.4-F2 Rev.
Page 10
Since oil consumption is higher during the running in Bukh original spare parts. If reliable and purpose- period, be sure to control the oil level more frequently built parts are not used, your safety, health, and the than normally recommended.
Instruments and Controls This chapter describes the instruments, panels and controls Bukh sells for your engine. If you would like to complement your instrumentation, or if your boat is equipped with instruments not described here, we ask that you contact your Bukh dealer.
Instruments and Controls Control Panels Bukh control panels can be installed in different combinations. The panels all look the same but are configured to handle different functionality. The number of available panels and their function depend on the boat’s functionality setup.
Go to the information display to obtain information regarding the alarm. Contact a Bukh workshop for a complete readout of all fault messages. For further information on how to handle fault...
Instruments and Controls Gauges These instruments are sold as engine options by Bukh. Tachometer RPMX1000 The tachometer displays engine speed; multiply the value shown on the dial by 1,000 to get the number of engine revolutions per minute. Engine hours are displayed in the tachometer window.
Instruments and Controls 4" Display The 4” display is an optional supplement to the Bukh control system. Via the display it is possible to view and control all installed functions in the system. IMPORTANT: Prolonged exposure to strong sunlight may damage the screen and cause functional faults.
Save to Card Autopilot lost communication with H... suitable actions. 8:34 Check Auxiliary bus For further information see Fault Handling, page 67 8:34 Check Auxiliary bus and Bukh Glass Cockpit manual. 7:15 Check Auxiliary bus 13-JAN-2016 Sorted by Time Back Engage Info...
Instruments and Controls Power Trim Your Bukh drive is equipped with a hydraulic trim system, Power Trim, that allows you to adjust the angle of the drive with respect to the transom from the helm station. The angle of the drive effects the boat's passage through the water and other characteristics, e.g.
NOTICE! The individual drive adjustments with the front buttons (2) is only available for installations without Bukh Interceptor System. For information about the Interceptor System, refer to Optional, page P0013214 Top mount control for twin installation...
Instruments and Controls Controls This section describes the controls Bukh sells for your engine. Contact your dealer if your boat is equipped with controls other than those described here, and you feel uncertain about their function. A single-lever control operates both gearshift and throttle functions with the same lever.
Optional Lowspeed The Bukh Lowspeed function is available for engines with hydraulic transmissions. Boats with powerful engines can have high speeds even at low revolutions; the low speed function reduces speed. Neutral position. Transmission is disengaged and engine revolutions are at idle.
Optional Joystick Bukh Joystick is a control used for docking and maneuvering. Practise using the joystick and its functions in a safe and proper manner. Practise how to operate the boat with both joystick docking and steering functions. CAUTION! The joystick maneuvering works differently depending on if the docking function or steering function is active.
Page 41
Optional Bukh Joystick is a control used for docking and maneuvering. Practise using the joystick and its functions in a safe and proper manner. Practise how to operate the boat with both joystick docking and steering functions. CAUTION! The joystick maneuvering works differently depending on if the docking function or steering function is active.
Optional Joystick Driving NOTICE! Function Joystick Driving only works together with Bukh autopilot. The Joystick Driving function allows the joystick to be used during passage to adjust the boat's heading and maneuver the boat in the same way as with the autoplilot and helm steering unit.
> Owner’s Manual to see the manual in the display or download the latest manual on www.garmin.com Bukh Autopilot consists of a compass unit and the Glass Cockpit Display. The autopilot adjusts boat steering to hold the boat on a straight course. Several different steering patterns can be set and the autopilot also permits manual steering.
Optional Bukh Interceptor System The Bukh interceptor system is a trim system that uses interceptors installed on the transom to act on a boat's running characteristics and provide a safer, more comfortable passage regardless of weather conditions. The IS system affects a boat's running characteristics at speeds of ≈10 knots and above.
Fault Handling, page 70. Select a propeller with greater pitch if actual engine revolutions exceed the full throttle range. Contact your Bukh dealer for advice. Synchronizing Engine Speed When driving with twin engines, both the operating economy and comfort will be increased when the engines are operating at the same engine speed (rpm).
Contact a Bukh workshop for assistance with diagnostic readouts and unresolved faults. NOTICE! The thruster is not a Bukh product. For assistance with faults regarding the thruster, please contact the thruster supplier service center. If needed, contact your Bukh dealer for more information.
Stop the engine and check that the ignition is turned off at all helm stations. The faults are still stored in the system and can be accessed via diagnostic readout by a Bukh workshop. When system power is reconnected, any remaining faults are displayed on the screen.
A number of symptoms and possible causes of engine malfunctions are described in the table below. Always contact your Bukh dealer if problems occur which you can not solve by yourself. Read through the safety advice for care and maintenance work in chapter Safety precautions for maintenance and service operations before starting work.
This chapter gives a more detailed description of the messages together with suggested actions to take. Contact your Bukh dealer if the fault remains after trying the corrective actions associated with the fault. Message If a malfunction is discovered, a message is shown on the display.
Page 72
Corrective action: Check if any button has stuck. Use steering wheel or choose alternative station. Check Multilink Possible causes: Limited instrumentation — the control unit has a communication fault. Corrective action: Contact your Bukh workshop. Check transmission Possible • The gear is automatically set to Neutral and it is not possible to shift the gear until the fault cause: has been acknowledged.
Page 73
• Check that there is no leakage. Engine Oil Filter Possible cause: There is an oil pressure difference and engine power is reduced. Corrective action: Contact your Bukh workshop. Engine Oil Level Possible The oil level is too low. cause:...
Page 74
Check that there is no leakage. Engine Speed Possible cause: Engine performance may be compromised and engine power is reduced. Corrective action: Contact your Bukh workshop. Exhaust Temperature Possible cause: The exhaust temperature is too high and engine power is reduced.
Page 75
Corrective action: Contact your Bukh workshop. Steering failure Possible cause: The helm station has lost communication with the steering actuator. Corrective action: Please contact a Bukh workshop. Steering Oil High Temp Possible cause: The temperature on the steering oil is to high.
Lift the boat ashore. Check the oil level in the drive. If the oil is gray-colored, water has entered and the drive must be inspected by an authorized Bukh workshop. The same applies if there is damage to the drive.
Maintenance Schedule Your Bukh engine and its equipment are designed for high reliability and long life. The engines are built to have the smallest possible environmental impact. If preventive maintenance is carried out, according to the maintenance schedule, these qualities will be retained and unnecessary malfunctions will be avoided. It is the owner's responsibility to make sure that the services in the service intervals are performed in order for the warranty to be valid.
Read through the safety precautions for maintenance and service in the Maintenance, page 90 chapter before work on the engine is begun. Bukh recommend that all servicing with the engine running should be undertaken by an authorized Bukh workshop. WARNING! Care and maintenance work should be done with the engine stopped unless otherwise specified.
Never carry out any work on the engine if you are oil can spray out. unsure of how it should be done; contact your Bukh dealer who will be glad to offer assistance. When carrying out work on the fuel system, make sure the engine is cold.
Page 90
Installing components that do not comply with the from the working area. quality for Bukh original spare parts may cause the system to malfunction. We strongly recommend to Chemicals use Bukh original spare parts.
Always observe the greatest cleanliness during refueling and work on the fuel system. All work on the unit injectors of the engine must be carried out by an authorized Bukh workshop. WARNING! Fire hazard. A fuel spill onto a hot surface or electrical components can cause fire.
P0013077 Therefore, the use of anti-corrosion agents alone, or water alone as a coolant, is not permitted in Bukh engines. The coolant must be based on Organic Acid Technology (OAT). Using an improper coolant or mixing with another coolant will rapidly reduce the performance and lifetime of the engine.
Technical Data, page 132. The coolant should be mixed with distilled, deionized water. For Bukh specified water requirements; refer to Technical Data, page 132. NOTICE! If water quality can not be guaranteed, use ready mixed coolant.
Always stop the engine and break the current using the main switches before working on the engine. IMPORTANT: Contact a Bukh dealer for information if any arc welding will be performed on the boat. Arc welding can cause damage to the engine and boat electronics.
The reverse gear uses solenoid valves for electronically controlled shifting. Bukh recommends that a seawater filter be fitted to guarantee the correct cooling water flow to the engine and reverse gear. Otherwise there is a risk of contaminants in the seawater blocking the reverse gear cooler and other cooling system components.
WARNING! Use only by Bukh recommended fluid and grade. Any non-appproved fluid may cause loss of steering or result in damage to the components used in the steering system.
Rinse with lukewarm water afterwards, (do not use a high pressure washer). Wet vacuum the keelson and dry off. Touch up any paint damage with Bukh original • paint or paint of the same quality. •...
P0012516 Trip Reset Depth Alarm Setting the level for the depth alarm on Bukh echo sounders. The setting need only be made at one helm station. 1 Navigate to Depth Alarm in the settings menu.
Page 125
Calibration and Settings 11. Hold the Joystick 12. To complete the 13. Steady light and buzzer position for 5 seconds calibration: Repeat confirm completed and confirm by pushing step(s) 8 –11. (or finish calibration. Ignition must be DOCKING. the calibration by turned off for at least 15 pushing DOCKING.) seconds to confirm the...
Page 129
NOTICE! Bukh approves usage of neat HVO and GTL that complies with EN 15940, as well as HVO and GTL blends into diesel fuels complying with the quality requirements above.
Page 131
Technical Data Cooling System Volume Fresh water system volume (ca) D4: 13 litre (3.4 US gal) D6: 16.5 litre (4.4 US gal) Thermostat The thermostats begins opening/fully open 82°C / 92°C (179.6°F / 197.6°F) Water Quality ASTM D4985: Total solid particles <340 ppm...
Follow the mixing recommendation on the product. The coolant should be mixed with distilled, deionized water. For Bukh specified water requirements; refer to Water Quality. NOTICE! Always use “Ready Mixed” coolant if water quality cannot be determined or if it does not fulfill ASTM D4985.
Page 137
Trim Controls.............31 Trim Instruments............32 Trim Ranges..............30 Viscosity..............129 Bukh Interceptor System........52 Water in Fuel............. 96...