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Motor won't tilt down...sometimes
#14420848
07/15/22 02:59 PM
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Joined: Oct 2006
Posts: 530
AggieDave
OP
Pro Angler
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OP
Pro Angler
Joined: Oct 2006
Posts: 530 |
Every now and then, my motor will tilt up, but refuse to tilt down. On the motor, on the throttle, at the wheel...doesn't matter. Pushing the TILT DOWN button is a no go. But...if I bump it further upwards a time or two, then immediately down and it will work. More of an annoyance right now. However, I'm afraid that one day the "bump it up then down" method won't work and it will be stuck in the up position. I have checked all the electronics and circuitry. Hydraulic motor seems good with good fluid. Rods and connections are clean and greased. Battery is charged. All the connections are clean and tight. Relay seems solid. Relay clicks when the TILT DOWN button is pressed. Verified voltage with button press and without. No obvious cause. What might cause such a situation? What is happening such that pressing the TILT DOWN button doesn't work until I bump the TILT UP button? It has to be something in the hydraulic pump, right? I mean, the buttons are activating the relay. The relay is switching the +12V input to the correct hydraulic motor input. So the +12V power is being delivered to the hydraulic motor. It just refuses to lower the motor. Any thoughts?
Fish tremble at the mere mention of my name!
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Re: Motor won't tilt down...sometimes
[Re: AggieDave]
#14420872
07/15/22 03:24 PM
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Joined: Feb 2006
Posts: 3,559
bronco71
TFF Team Angler
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TFF Team Angler
Joined: Feb 2006
Posts: 3,559 |
Sounds like air in the lines, bleed and top off...
1987 Nitro MX185/Mercury Black Max 150 1999 Triton TX21/225 Mercury Optimax
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Re: Motor won't tilt down...sometimes
[Re: AggieDave]
#14420883
07/15/22 03:45 PM
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Joined: Apr 2017
Posts: 10,719
tmd11111
TFF Guru
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TFF Guru
Joined: Apr 2017
Posts: 10,719 |
The relays just change direction of voltage to motor. Bad contacts in relays can allow it to click but not let enough amperage pass through. Other possibility is brushed in motor are worn and its sticking.
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Re: Motor won't tilt down...sometimes
[Re: tmd11111]
#14421060
07/15/22 07:11 PM
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Joined: Aug 2002
Posts: 2,038
DLALLDER
Extreme Angler
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Extreme Angler
Joined: Aug 2002
Posts: 2,038 |
The relays just change direction of voltage to motor. Bad contacts in relays can allow it to click but not let enough amperage pass through. Other possibility is brushed in motor are worn and its sticking. Swap the 2 relays and see if the bad position works. Went thru this several years ago on a Merc. BE SURE THE CONTACTS ARE CLEAN WITH NO OIL OR GREASE ON THEM.
Last edited by DLALLDER; 07/15/22 07:16 PM.
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Re: Motor won't tilt down...sometimes
[Re: AggieDave]
#14421189
07/15/22 09:27 PM
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Joined: Jun 2012
Posts: 623
El Skeeter
Pro Angler
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Pro Angler
Joined: Jun 2012
Posts: 623 |
If it gets stuck in UP position, it can always be released manually.
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Re: Motor won't tilt down...sometimes
[Re: AggieDave]
#14421308
07/16/22 01:13 AM
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Joined: Sep 2017
Posts: 5,135
pop r
TFF Celebrity
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TFF Celebrity
Joined: Sep 2017
Posts: 5,135 |
Relays are cheap I would start there.
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Re: Motor won't tilt down...sometimes
[Re: pop r]
#14425351
07/20/22 04:25 PM
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Joined: Oct 2006
Posts: 530
AggieDave
OP
Pro Angler
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OP
Pro Angler
Joined: Oct 2006
Posts: 530 |
The relays just change direction of voltage to motor. Bad contacts in relays can allow it to click but not let enough amperage pass through. Other possibility is brushed in motor are worn and its sticking. Swap the 2 relays and see if the bad position works. Went thru this several years ago on a Merc. BE SURE THE CONTACTS ARE CLEAN WITH NO OIL OR GREASE ON THEM. This is a Yamaha 225VX OX66. Thus, there is only one relay. It appears clean and the connections appear tight. I can hear the relay click then the UP/DOWN buttons are pressed. I can also see the voltage switching between the UP and DOWN directions when the button is pressed. Relays are cheap I would start there. The relay in question is $173. I'd prefer to do a bit more troubleshooting before I swap the relay. 
Fish tremble at the mere mention of my name!
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Re: Motor won't tilt down...sometimes
[Re: AggieDave]
#14425481
07/20/22 06:33 PM
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Joined: Apr 2017
Posts: 10,719
tmd11111
TFF Guru
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TFF Guru
Joined: Apr 2017
Posts: 10,719 |
The relays just change direction of voltage to motor. Bad contacts in relays can allow it to click but not let enough amperage pass through. Other possibility is brushed in motor are worn and its sticking. Swap the 2 relays and see if the bad position works. Went thru this several years ago on a Merc. BE SURE THE CONTACTS ARE CLEAN WITH NO OIL OR GREASE ON THEM. This is a Yamaha 225VX OX66. Thus, there is only one relay. It appears clean and the connections appear tight. I can hear the relay click then the UP/DOWN buttons are pressed. I can also see the voltage switching between the UP and DOWN directions when the button is pressed. Relays are cheap I would start there. The relay in question is $173. I'd prefer to do a bit more troubleshooting before I swap the relay.  Just because the relay is clicking and letting voltage through doesn't necessarily mean its good. If theres corrosion on the contacts it will create resistance and not enough volts/amps will pass through.
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Re: Motor won't tilt down...sometimes
[Re: bronco71]
#14425484
07/20/22 06:35 PM
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Joined: Dec 2008
Posts: 6,811
Fishbonz
TFF Celebrity
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TFF Celebrity
Joined: Dec 2008
Posts: 6,811 |
Sounds like air in the lines, bleed and top off... Try THIS FIRST! Make sure you have fluid in the reservoir & at the proper level before you spend anything! 
HE aka Fishbonz
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