Owner's Manual DF60A, DF40A, DF50A Propeller Selection And Installation
The electrical system or its components may be damaged if proper battery precautions are not followed.- Be sure to attach battery leads correctly.- Do not disconnect battery leads from the battery while the engine is running.
USE OF ELECTRICAL ACCESSORIES
The amount of power (12V DC) available for accessories depends on the operating condition of the motor. For getting a detailed information, please inquire of your authorized Suzuki Marine Dealer.
Use of too much power for electrical accessories under certain operating conditions can cause the battery to discharge.
PROPELLER SELECTION AND INSTALLATION
PROPELLER SELECTION
it is essential to use a propeller on your out- board motor that is properly matched to your boat’s operating characteristics The speed of the engine when you operate your boat at full throttle depends on the propeller you use. Excessive engine speed can seriously damage the motor. while low engine speed at full throttle will adversely affect the performance. Your operating load will also affect propeller selection. Smaller loads generally require larger- pitch propellers; larger loads generally require smaller-pitch propellers. Your authorized Suzuki Marine Dealer will assist you in selecting a suit- able propeller for your boat.
Installing a propeller with either too much or too little pitch will cause incorrect maximum engine speed, which may result in severe damage to the motor. Ask your authorized Suzuki marine dealer to assist you in selecting a suit- able propeller for your boat.
You can determine if your propeller is appropriate for use with your boat by using a tachometer to measure engine speed when operating your boat at full throttle. under minimum load conditions. If you are using an appropriate propeller. the engine speed will be within the fol- lowing range:
| DF40A | 5000 – 6000 |
|---|---|
| r/min( (min ) | |
| DF50A | 5300 6300 |
| DF6OA | r/min( (min ) |
If the engine speed is not within this range, consult your authorized Suzuki Marine Dealer to determine which propeller size is best for you.
If you change propellers, be sure to perform the above check again, to confirm that the engine speed under full throttle is within the specified range.
PROPELLER INSTALLATION
Failure to take proper precautions when installing or removing the propeller can result in severe personal injury. When installing or removing the propeller: - Always shift into “Neutral" and remove the emergency stop switch lock plate so that the motor cannot be started accidentally. Wear gloves to protect hands, and “lock" the propeller by placing a block of wood between the blades and the anti-cavitation plate.
To install a propeller on your outboard motor, use the following procedure:
Coat the propeller shaft spines (1) liberay with Suzuki water resistant grease to hep prevent corrosion.
Place the stopper (2) on the shaft.
Align the propeller (3) with the propeller shaft splines and slide the propeller onto the shaft.
Place the spacer (4) and washer (5) on the shaft.
Install the propeller nut (6) and tighten it with a torque wrench to 50 7 60 N-m (5.0 e 6.0 kg-m/seo , 43.5 lb-ft).
Align the grooves in the propeller nut with the hole in the shaft, then insert the cotter pin (7) and bend the pin ends over to lock it in place.
To remove the propeller, reverse the above procedure.
ADJUSTMENTS
TRIM ANGLE ADJUSTMENT
To help maintain steering stability and good performance, always maintain the proper trim
angle as shown in the illustration, The appropriate trim angle varies depending on the combination of the boat, engine, and propeller, as well as operating conditions.
Make a test run in the boat to determine if the trim angle needs to be adjusted. Adjust the trim angle using the Power Trim and Tilt system. Refer to the POWER TRIM AND TILT section
If you still cannot achieve good performance, there may be a problem with engine mounting height. Consult your dealer for assistance.
