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Topic: Step won’t shut till 10 minutes down the road (Read 2049 times) previous topic - next topic

Re: Step won’t shut till 10 minutes down the road

Reply #20 –
The supply fittings are a standard item that can be bought many places.

Re: Step won’t shut till 10 minutes down the road

Reply #21 –
It'll take a bit of torque to break the sealant but then they'll come out pretty easily using either a socket or tubing wrench or even an open end wrench if it will fit.  Better not to use an open end or crescent wrench since the brass is pretty soft and easy to round off.  Use a wire brush to clean off the old sealant, reapply new ptfe sealant when re-installing.

Re: Step won’t shut till 10 minutes down the road

Reply #22 –
Tommy,
The valve sounds like it's just gummed up.  Try freeing it up with some light weight oil down each port opening.  These are piloted valves so it needs pressure for the spindle inside to actually move.
Here's an old link to a similar post:
Entry step/step cover solenoid/norgren valve

Re: Step won’t shut till 10 minutes down the road

Reply #23 –
Quote from: craneman –
The supply fittings are a standard item that can be bought many places.

What about that kind of relief valve? What is that style relief valve called? In case I break one like I already did😳


Is this a suitable replacement
Quietaire Series, speed control muffler, 1/4" NPT male port, 40 µm sintered...

Or is there a source for the same one?

Re: Step won’t shut till 10 minutes down the road

Reply #24 –
Quote from: Tommy D –
What about that kind of relief valve? What is that style relief valve called? In case I break one like I already did😳


Is this a suitable replacement
Quietaire Series, speed control muffler, 1/4" NPT male port, 40 µm sintered...

Or is there a source for the same one?
Cheaper and easier to find
Exhaust Port Flow Control: Screwdriver Adjuster, 1/4 in Male NPT, 300 psi Max.

Re: Step won’t shut till 10 minutes down the road

Reply #25 –
Quote from: Tommy D –
What about that kind of relief valve? What is that style relief valve called? In case I break one like I already did😳


Is this a suitable replacement
Quietaire Series, speed control muffler, 1/4" NPT male port, 40 µm sintered...

Or is there a source for the same one?
Are the threads still in the valve?

Re: Step won’t shut till 10 minutes down the road

Reply #26 –
Quote from: craneman –
Are the threads still in the valve?
No I was able to get it out and have ordered a new valve and muffler from see photo. Cleaned all openings and fittings and sprayed in silicone grease to lube but had no luck, could only get solenoid to actuate to open step not close step.

Was a great learning experience.  I've been a little apprehensive about fooling with anything to do with the air system but it wasn't hard with all the help from you guys! Thanks a bunch!  Hopefully I'll get the new valve installed when I get it and working properly.

Re: Step won’t shut till 10 minutes down the road

Reply #27 –
I had a similar problem with my step, but my step would not come out. Replaced the muffler and selonoid
and still did not work. It ended up being the clipboard cylinder. The cylinder that moves the step in and out.
Replaced it and everything worked great. Yours maybe different.

Re: Step won’t shut till 10 minutes down the road

Reply #28 –
Quote from: Big Al –
I had a similar problem with my step, but my step would not come out. Replaced the muffler and selonoid
and still did not work. It ended up being the clipboard cylinder. The cylinder that moves the step in and out.
Replaced it and everything worked great. Yours maybe different.
Also keep in mind the air cylinder can leak in the open or closed positions. So check them periodically

Re: Step won’t shut till 10 minutes down the road

Reply #29 –
Quote from: Big Al –
I had a similar problem with my step, but my step would not come out. Replaced the muffler and selonoid
and still did not work. It ended up being the clipboard cylinder. The cylinder that moves the step in and out.
Replaced it and everything worked great. Yours maybe different.
Changed the air line to the cylinder and it worked fine to close the step.  So think it is the solenoid.

Re: Step won’t shut till 10 minutes down the road

Reply #30 –
Need some problem solving help.

Replaced valve (all wires and ports hooked to same # as original valve)and it is acting just like the one I replaced.
Door open air out of bottom port
Door closed air out of bottom port
Solenoid is actuating when door is opened or closed
If I hook up the cylinder to bottom port it opens or closes the step fine when I switch the lines
Took both green wires off of magnetic switch and tested by touching those together and put meter on this wire and ground and got 12v

What next?

Re: Step won’t shut till 10 minutes down the road

Reply #31 –
I wonder if it's the door switch that tells the valve when the door is open or closed?

Re: Step won’t shut till 10 minutes down the road

Reply #32 –
Quote from: John Duld –
I wonder if it's the door switch that tells the valve when the door is open or closed?
Pretty sure when switch is closed (when door is closed) it closes step so by touching the 2 green wires together on switch I closed the switch but it still didn't change the port that air blew out of.

Don't think not having muffler/diffuser on back side would affect anything??

Re: Step won’t shut till 10 minutes down the road

Reply #33 –
Quote from: Tommy D –
Pretty sure when switch is closed (when door is closed) it closes step so by touching the 2 green wires together on switch I closed the switch but it still didn't change the port that air blew out of.

Don't think not having muffler/diffuser on back side would affect anything??

Do you have the 12V DC coil?
Did you plumb up the air lines number for number?  Or did you go by position?

Re: Step won’t shut till 10 minutes down the road

Reply #34 –
OK
one of the wires to the solenoid comes from the door switch, the other should go to a good grounding connection on the chassis.
(if it is like mine)
Make sure you have 12v on one when the door is closed  and (ignition on). connect your test meter in between these to coil wires as if it was the solenoid (should have 12v)
This is to insure the ground wire has a good connection, and ohm test on the ground wire to a known good ground would be better.

You had stated earlier that you could hear the valve "click" (I believe) so this is puzzling because that should mean the valve piston is shifting. Can you hear the new valve actuate also?

Re: Step won’t shut till 10 minutes down the road

Reply #35 –
Quote from: FourTravelers –
OK
one of the wires to the solenoid comes from the door switch, the other should go to a good grounding connection on the chassis.
(if it is like mine)
Make sure you have 12v on one when the door is closed  and (ignition on). connect your test meter in between these to coil wires as if it was the solenoid (should have 12v)
This is to insure the ground wire has a good connection, and ohm test on the ground wire to a known good ground would be better.

You had stated earlier that you could hear the valve "click" (I believe) so this is puzzling because that should mean the valve piston is shifting. Can you hear the new valve actuate also?

Yes can still here the click.

Will take apart and test the 2 wires at the valve to make sure I have 12v there and will try to track down the ground wire

Re: Step won’t shut till 10 minutes down the road

Reply #36 –
Yep
make sure you have a good connection to ground on the white wire, the "click" could be the coil pulling in and dropping right back out.
Remember......... remote troubleshooting isn't the easiest way,  just throwing darts here.

Re: Step won’t shut till 10 minutes down the road

Reply #37 –
Quote from: FourTravelers –
Yep
make sure you have a good connection to ground on the white wire, the "click" could be the coil pulling in and dropping right back out.
Remember......... remote troubleshooting isn't the easiest way,  just throwing darts here.

Any help is better than none, thanks for your patience!  I know just enough to be dangerous!

Re: Step won’t shut till 10 minutes down the road

Reply #38 –
Are you putting the part in a vise?, if not that would work.

Re: Step won’t shut till 10 minutes down the road

Reply #39 –
Quote from: Old Toolmaker –
Do you have the 12V DC coil?
Did you plumb up the air lines number for number?  Or did you go by position?
I did follow the air line position # for #.

What do you mean by "do you have the 12v DC coil"?
If you mean the plug they supplied I will check that out. Sorry not too fluent in electrical or mechanical lingo.