Replacing a 220-volt motor on a boat lift with a Leeson A4C17H4H... and its SEVEN wires are all yellow (T8, T2, T3, P2, P1, T4, and T5) which I need to connect to FIVE wires coming in (green, red, orange, black, white.) Obviously several need capped off... but I don't know which! I have pages of notes on what comes from where, but I'm thinking there's probably standardization here and I just don't know it. My usual level of electrical expertise is practical only-- I can replace a light switch or fix a vacuum cleaner cord. Help!

didnt specify to much --generic answer -- sounds like hooking up a heating or cooling unit black and white should be your line voltage use a meter to test your black and white line for 110v if motor is 110v the low voltage lines are control or switch lines that dont go to motor they usually go to a thermostat or transformer

Ok from what I read on the diagram take one lead to P1 cap of P2 T3 T8 and T2 are together and T4 and T5 are put to the second lead
If you want to change direction exchange T5 and T8

One needs to know what the voltage and phase(1 or 3) the unit is and what the power supply is.

Having 9 wires means it is a 3 phase motor.
For 220 to 240 Volts - L1, T1 and T7 go together. L2, T2 and T8 go together. L3, T3 and T9 go together. T4, T5 and T6 go together.

For 440 to 480 Volts - L1 and T1 go together. L2 and T2 go together. L3 and T3 go together. T4 and T7 go together. T5 and T8 go together. T6 and T9 go together.

Dayton 6K773AC
Line1 = P1
Line2 = T4, T5
T2, T3, T8 Cap Together
P2 Cap

Hey guys, this motor is reversible. I have it wired to turn clockwise(according to diagram),
green to ground;
L1 (black) to P1;
L2 (white) to T2-T4-T8;
P2-T3-T5 together .
When I plug it in, the motor turns counter clockwise and the on/off switch does not work. How do I fix?

There is no neutral on 3 phase. They are all power wires. If you try hooking up a 3 phase motor to single phase power it won't work.

Connect t4,t5,t6 together. Connect t1,t7 together for line 1. Connect t2,t8 together for line 2. Connect t3,t9 for line 3.

The green should be connected to the chassis, it is ground.
There should be a wiring diagram on it to tell you how to do this, but if not:

There may be T-leads on the motor labeled
P1, P2, T3,T4,T5,T8

P1-L1(black wire)
P2-cap/tape don't use.
T2,T3, and T5 wire nut together
T4,T-8 wire nut together with L2(white)

The power leads will be coming from your switch box on the compressor body itself. Don't wire the 220v directly to the motor, you replace the leads where the first motor was connected on the cutoff switch. There will be only 2 leading from the switch to the motor.

motor leads on a three phase are T1, T2, T3, T4, T5, T6, T7, T8, T9. for high voltage [480] L1 to T1, L2 to T2, L3 to T3, connect together and tape - T4-T7, T5-T8, T6-T9. For LOW voltage [240] L1 to T1 & T7 & tape, L2 to T2-T8 & tape, L3 to T3 & T9 & tape. T4-T5-T6 together and tape.