6505 Control Head Kobelt Manufacturing Co. Ltd.
Rev A mnl6505.docx 10 of 18
4 OPERATION
The 6505 control head is equipped with four membrane buttons that enable the following functions:
STATION SELECT permits the transfer of engine control to another station. On power-up, station
control automatically is assigned to station 1 (main station).
STATION LOCK allows the operator to lock out the other control stations.
THROTTLE OVERRIDE disables the clutch function so that the engine can be operated to full throttle
without turning the propellors. This feature is useful for engine warm-up or
testing.
To return to the normal operating mode, return the handle positions back to
neutral (TDC) and press the button again.
SYNCHRONIZER Pressing this button enables the propellor speed synchronization feature, which
uses external speed sensors to measure the speed and permit the controller to
match the engine speeds. The operator only needs to move one or the other
throttle handle to control both engine speeds.
When pressing the button, the light will flash until the engine speeds are
synchronized. As long as the engine speeds are within the controller dead-
band, the light remains solid on. The synchronizer function is not available
when the propulsion controls are in trolling mode.
5 MAINTENANCE
5.1 PREVENTATIVE MAINTENANCE
• Quarterly (4 times per year)
o Lubricate the detent track (reference section 5.4)
o Ensure that the friction amount is adequate.
• Every 2 years
o Inspect detent plate. Replace if necessary.
o Replace shaft seal
5.2 CALIBRATION
When replacing the potentiometer or if the setting has become disturbed, follow these steps to center
the output:
1. Position the handle in the center (neutral) position.
2. Remove the control head bottom cover.
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