I didn't try the tim tabs because in the A. Thanks for the advice though. DBM P. I currently idle at around rpm's. Some time ago some good soul on the site gave me good instructions but I can't seem to find the old post. Apr 24, 9. Thanks for all the feedback. You must log in or sign up to reply here. Show Ignored Content. Share This Page Tweet. Your name or email address: Do you already have an account?
No, create an account now. To accomplish this the shaft speed of the vessel must be reduced. This may be required for fishing purposes or while the vessel is operating in confined spaces, and minimum wake is required. What is a trolling valve? A trolling valve is merely a variable pressure regulator, which works with the existing pressure regulator to provide for a low range of pressure control.
This pressure range of operation is between 7 PSI. This lower pressure will cause the clutch pack to slip allowing the propeller shaft to operate slower than the normal "in gear" speed. What's the valve's range of operation? For practical purposes there is no minimum shaft speed that can be obtained. Under certain circumstances the shaft may stop turning. The engine speed may be increased if a greater shaft speed is desired.
Engine speeds must be at or near idle during trolling operation. If a greater shaft speed is required, the engine idle could be increased. The engine speed should never exceed RPM during trolling. Some applications have a lower limit. Can I use my trolling valve to dock my boat? The clutch pressure is reduced during trolling.
This means the response from ahead to astern or vice versa is very slow. This reduced or lack of control could lead to damage or injury should the vessel contact fixed objects. For this reason, it is not recommended to use trolling valves for docking purposes. How do I control my trolling valve? ZF offers both electrical and mechanical trolling valves. For mechanical valves, any means of moving the control lever can be used to operate the valve.
If mechanical systems are used, you must ensure that the control lever can be moved in small increments to ensure repeatability of operation. Electric valves have proved to be the more easily controlled type.
Many marine control systems are available to properly control the valve. Electronic control systems allow for easy adjustments of the valves' range of operation to suit different applications. Regardless of the type of valve or control system, there must be provisions made to prevent the operation of the vessel in a situation so as to damage the clutch plates in the gearbox.
If a greater shaft speed is required, the engine idle could be increased. The engine speed should never exceed RPM during trolling. Some applications have a lower limit.
Can I use my trolling valve to dock my boat? The clutch pressure is reduced during trolling. This means the response from ahead to astern or vice versa is very slow.
This reduced or lack of control could lead to damage or injury should the vessel contact fixed objects. For this reason, it is not recommended to use trolling valves for docking purposes. How do I control my trolling valve?
ZF offers both electrical and mechanical trolling valves. For mechanical valves, any means of moving the control lever can be used to operate the valve. If mechanical systems are used, you must ensure that the control lever can be moved in small increments to ensure repeatability of operation. Electric valves have proved to be the more easily controlled type. Many marine control systems are available to properly control the valve.
Electronic control systems allow for easy adjustments of the valves' range of operation to suit different applications. Regardless of the type of valve or control system, there must be provisions made to prevent the operation of the vessel in a situation so as to damage the clutch plates in the gearbox.
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