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-   -   Tiffin Slide Outs (https://www.irv2.com/forums/f106/tiffin-slide-outs-558559.html)

FredT 10-20-2021 08:30 PM

Tiffin Slide Outs
 
I recently purchased a 2009 Tiffin Phaeton 36QSH. It has 4 slide outs. 2 are electric and 2 are hydraulic. In one section the owners section states the motor home engine should be on when extending and retracting the slides and another states the engine should be off. Anyone know the correct procedures for extending and retracting the slides? Thanks

BRodgers 10-20-2021 11:45 PM

Tiffin Slide Outs
 
Quote:

Originally Posted by FredT (Post 5957328)
I recently purchased a 2009 Tiffin Phaeton 36QSH. It has 4 slide outs. 2 are electric and 2 are hydraulic. In one section the owners section states the motor home engine should be on when extending and retracting the slides and another states the engine should be off. Anyone know the correct procedures for extending and retracting the slides? Thanks

Out of curiosity, I looked for and found the owner's manual for the 2009 Phaeton. I agree there are several contradictory statements regarding the position of the key when operating the slides.

I owned a 2012 Phaeton and currently own a 2018 Allegro Bus. In both coaches the ignition key had to be on to operate the slides. I typically do not operate the slides unless the coach is running and/or hooked up to shore power.

Hope this helps.

Coloradodude 10-21-2021 06:57 AM

Fred

Key must be on to Operate electric slides. Hydraulic slides do not have to have key on.

Wayne

DRM901 10-21-2021 08:39 AM

I always have the engine running. Both the electric & hydraulic slides take a lot of power to operate. The electric ones can get confused if you stop them in the middle.

It is just easy to do the jacks & slides while the engine is warming up or cooling down.

pameridan04 10-21-2021 01:47 PM

Put me in the camp with the engine running, then extend slides.



But FIRST level the coach, then extend slides.



PAM

Fredtp 10-22-2021 06:33 AM

Quote:

Originally Posted by Coloradodude (Post 5957588)
Fred

Key must be on to Operate electric slides. Hydraulic slides do not have to have key on.

Wayne

Our 2022 Open Road has to have the key on for the hyd slides to operate.

Ohio44718 10-22-2021 07:02 AM

When I had my 2008 Phaeton and staying at a location that had power, I would go out, hook-up my electric and water (easier to get to everything on basement slides), level, then open slides using the shore power. Do not remember which slides, but one set did require the ignition key on for them to open or close. If somewhere without pedestal power, would start motor to supplement the batteries when bringing them in.


One disclaimer: I was fortunate to have 6 house batteries so plenty of battery power.

groswald 10-22-2021 07:48 AM

Sitting in the lounge in Red Bay waiting for service on the bedroom slide to be finished

The tech recommended always having the engine running when operating slides or jacks. His opinion/experience is that the higher voltage available makes everything work better.

True? Who knows, but hopefully he knows more than I do, so Iíll be running the engine from now on.

Regards,

Randy

Ohio44718 10-22-2021 08:05 AM

Quote:

Originally Posted by groswald (Post 5958896)
Sitting in the lounge in Red Bay waiting for service on the bedroom slide to be finished

The tech recommended always having the engine running when operating slides or jacks. His opinion/experience is that the higher voltage available makes everything work better.

True? Who knows, but hopefully he knows more than I do, so I’ll be running the engine from now on.

Regards,

Randy

If you have an expert available, maybe a followup question. Which provides more supplemental power? The alternator or the inverters hooked up to shore power? If pulling out in the mornings, I personally hate to run the motor longer than I have to trying to be considerate of my neighbors.

groswald 10-22-2021 05:56 PM

Sorry, didnít see your request in time to ask.

But, at 175-ish amps, the alternator generally wins!

:D

Regards,

Randy

Ohio44718 10-23-2021 02:04 AM

You are right. After some Google searching, found that at least the newer Inverter/Chargers seem to typically charge at around 150A. Alternator wins! But as I think through all of the steps and my reasoning is or was, on a Tiffin, you must level your coach before opening the slides. For safety reasons, I believe the jacks could not be operated with the ignition key on and always felt the hydraulic pump required a lot of power to operate too. So having the shore power/inverter supplying power to the batteries always seemed a logical way to supplement. Slides never seemed to struggle, but you are right, restarting the motor would give it even more juice.

DRM901 10-23-2021 07:05 AM

Our alternator is 170A. Our inverter is 2800W (233A). On our 2014 Allegro Bus, I think the slides are powered by the chassis batteries, since you have to have the ignition on.

thegats1 10-24-2021 05:35 AM

Quote:

Originally Posted by DRM901 (Post 5959917)
Our alternator is 170A. Our inverter is 2800W (233A). On our 2014 Allegro Bus, I think the slides are powered by the chassis batteries, since you have to have the ignition on.


Or the ignition may only be the safety interlock but not related to power. I responded to your post because I have often wondered which batteries are being used. My initial thought is chassis using your same logic. But in my old Navy Nuke Electrician days I worked on many things that were powered by one source but interlocked from another source. Guess I will have to look it up. I imagine there are 1000+ posts on this forum some place.

KenJr 10-24-2021 06:29 AM

Tiffin Slide Outs
 
2800 watts=23 amps AC, DC amps determined by built in charger in inverter. Charged battery bank can easily power slides but I do think itís a good idea to run engine or be on shore power to operate. Also so much easier to hook up power water and sewer before extending slides. Banging head while hooking up sucks.

DRM901 10-24-2021 01:08 PM

Yes, that was a typo on the amps. 233A would be over the top.

I just got home so I tested to see which batteries control the slides. With the house batteries off & the ignition on, both our electric & hydraulic slides won't work.

I thought it was the chassis batteries because I've not seen a relay labeled with that lockout function.

BentlyRV 10-25-2021 10:19 AM

Quote:

Originally Posted by DRM901 (Post 5961300)
Yes, that was a typo on the amps. 233A would be over the top.

I just got home so I tested to see which batteries control the slides. With the house batteries off & the ignition on, both our electric & hydraulic slides won't work.

I thought it was the chassis batteries because I've not seen a relay labeled with that lockout function.

Proving that it is the chassis batteries answers part of the questions about this subject, THANK YOU!! I appreciate your time and test of that aspect! BUT, if you're on shore power and, in our case, we have the aftermarket trickle charger on the chassis batteries, I'm still assuming the slides pull too much power to operate the slides, therefore the engine should be running??? I'm certain of the answer being yes, engine on! If TRUE, shore power is not helping anyone who own's a Tiffin as it pertains to operating the slides!

2014 Tiffin Allegro Bus 37AP

BentlyRV 10-25-2021 10:24 AM

Quote:

Originally Posted by DRM901 (Post 5961300)
Yes, that was a typo on the amps. 233A would be over the top.

I just got home so I tested to see which batteries control the slides. With the house batteries off & the ignition on, both our electric & hydraulic slides won't work.

I thought it was the chassis batteries because I've not seen a relay labeled with that lockout function.

OOOHHH, WAIT, Did I misread what you meant about your test?? HOUSE Batts need to be on Along With The KEY???

So sorry about my confusion....

BentlyRV 10-25-2021 10:31 AM

Quote:

Originally Posted by DRM901 (Post 5961300)
Yes, that was a typo on the amps. 233A would be over the top.

I just got home so I tested to see which batteries control the slides. With the house batteries off & the ignition on, both our electric & hydraulic slides won't work.

I thought it was the chassis batteries because I've not seen a relay labeled with that lockout function.

OOOHHH, WAIT, Did I misread what you meant about your test?? HOUSE Batts need to be on Along With The KEY???

So sorry about my confusion....:blink::o:o

Props2 10-25-2021 09:58 PM

My slides are powered from the house battery's. And yes, the key needs to be turned on. When I plug into shore power, the Magnum immediately starts topping off the house battery's, which is giving me around 13.5v. Plenty good enough for the slides if you don't want to run the engine. But honestly, I don't have issues leveling and deploying slides with just the 12.6v from the house battery's if I feel I need to.

Saving Grace 10-26-2021 04:01 PM

Quote:

Originally Posted by DRM901 (Post 5957715)
I always have the engine running. Both the electric & hydraulic slides take a lot of power to operate. The electric ones can get confused if you stop them in the middle.

It is just easy to do the jacks & slides while the engine is warming up or cooling down.

Agree. We always have engine running (or hooked up,to shore power) when putting slides out or in. The extra power is needed for the electric slides and the engine needs to cool down/warm up. So slides out, jacks down and engine off. Or engine on, slides in, jacks up.

DiddyPnut 10-26-2021 04:04 PM

Additional things to keep in mind is to leave a door, window, or fan vent open when opening & closing up the slides. There is a lot of air movement and it will reduce the strain.

On running the engine, if you are setting up after coming off of the road and the motor has not been turned off then the charge solenoid should still be energized connecting the house & chassis batteries. If just starting the engine, it will be a few minutes before the charge solenoid energizes. (Not sure all of the parameters to engage but according to Tiffin, there are several) I have an accessory cable plugged into a dash cig jack that also shows the voltage (House Batteries) and this is convenient for knowing the house battery level and when the charge solenoid is enabled (Manual Boost). This is how I noticed my solenoid was bad (common problem).

If you hook up to shore power before jacks & slides be sure to wait for the delay in the surge protector before turning on any loads. Otherwise it will put unnecessary wear on surge protector and transfer box contactors if they switch under load.

Mongobird 10-26-2021 04:46 PM

Quote:

Originally Posted by DiddyPnut (Post 5964176)
Additional things to keep in mind is to leave a door, window, or fan vent open when opening & closing up the slides. There is a lot of air movement and it will reduce the strain.

(much omitted text)

The sealed box is a good point. The slides are a large piston, and reducing that load by opening a window is huge.

Just to add a thought. I would rather have the peak energy from cycling the slide come from the inverter/charger than from an alternator, which is already hot in the engine compartment, or if cold is likely making up for the glow/start sequence of the chassis engine.

I have replaced too many alternators, albeit mostly from worn brushes (which would likely be from large current over a long time).

HerbieHauler 10-26-2021 07:08 PM

I have always ran my engine to provide more power when using the slides and the jacks. I also open the drivers side window to allow air to move in and out of the coach more easily. With the a window or vent open, you'll have less drag on the slides and will help them move more freely. This also allows the engine time to get up to operating temps while your air tanks fill up.. IMHO...

SteveBev 10-26-2021 08:49 PM

I get parked first then turn off motor, plug into shore power or have gen running, level up then the slides come out. Key has to be turned to on position. House batteries power slides. House batteries also are what start gen.

2014 bus 37ap

THenne1713 10-26-2021 09:17 PM

Quote:

Originally Posted by FredT (Post 5957328)
I recently purchased a 2009 Tiffin Phaeton 36QSH. It has 4 slide outs. 2 are electric and 2 are hydraulic. In one section the owners section states the motor home engine should be on when extending and retracting the slides and another states the engine should be off. Anyone know the correct procedures for extending and retracting the slides? Thanks

IMHO/ SWAG** is that MFR opinion CHANGED, and the OM is copied from year to year, and (sometimes) (some things) are re-written to Update, and OFTEN, MISTAKES REMAIN from year to year...but... many OM used to say ENGINE ON to OPERATE SLIDES, BECAUSE OF HIGH BATTERY CURRENT DEMAND FROM SLIDES; some later, (maybe lawsuits involved?) changed to ENGINE= OFF TO OPERATE SLIDES, so that slides are LOCKED OFF WHEN TRAVELING. My 2000 Class-C Gulfstream locks OFF when IGN=ON, and OManual reflects same. (** Google if you need definitions, :-)

hitlinks 10-26-2021 10:32 PM

The key should only need to be in the on position. I'm certain that the landing gear should be down first. You probably knew that though.

wmiii 10-27-2021 04:46 AM

Our 2008 Phaeton 40QSH has Bigfoot levelers.
When I get to our site, I level, which dumps the air, connect to shore power and then put slides out, with the key on.
I was told to have the key OFF when operating the Bigfoot levelers.

Wm Mayberry
2008 Phaeton 40QSH

dieseldug 10-27-2021 02:55 PM

Quote:

Originally Posted by SteveBev (Post 5964544)
I get parked first then turn off motor, plug into shore power or have gen running, level up then the slides come out. Key has to be turned to on position. House batteries power slides. House batteries also are what start gen.

2014 bus 37ap


I also have a 37ap Allegro Bus and my manual says ignition on but not engine running for slides. I've always followed that. Arrive, shut engine down, dump air, ignition on, auto-level on. I then go hook up electrical while jacks doing their thing. Then put slides out after coach leveled. When leaving - ignition on, bring slides in, store jacks then start engine and air up the suspension, disconnect shore power. On my last trip as I was getting ready to leave Hilton Head, the two small slides(rear) came in just fine but the two big ones wouldn't move. Eventually I tried starting the engine and then could bring in the slides.???? Since then I light off the engine before doing anything else. I don't know why after 50,000 miles the slides wouldn't follow the normal procedure but they must have a mind of their own.

n2zon 10-27-2021 03:51 PM

Our slides only work with the key in the Off position.

kmeinke 10-27-2021 05:19 PM

Our only work with the key in the on position

2019 45 OPP

harleyjt 10-27-2021 09:53 PM

2019 40IH. Ignition key must be in the on position. Engine does not have to be running. Generator should be running or hooked to shore power.
jt

THenne1713 10-28-2021 12:41 AM

Quote:

Originally Posted by wmiii (Post 5964709)
Our 2008 Phaeton 40QSH has Bigfoot levelers.
When I get to our site, I level, which dumps the air, connect to shore power and then put slides out, with the key on.
I was told to have the key OFF when operating the Bigfoot levelers.

Wm Mayberry
2008 Phaeton 40QSH

Which bring up the OTHER issue/ reason: (MOST) now say LEVEL first, then extend slides. On MANY, if IGN=ON, then Jacks= AUTO RETRACT to PREVENT "Drive-off damage".

Ohio44718 10-28-2021 06:21 AM

Quote:

Originally Posted by THenne1713 (Post 5965791)
Which bring up the OTHER issue/ reason: (MOST) now say LEVEL first, then extend slides. On MANY, if IGN=ON, then Jacks= AUTO RETRACT to PREVENT "Drive-off damage".

Auto Retract, at least on my 2008, meant that when activated, no need to hold the button down and all 4 Jacks would retract. If you would put it in gear and start to drive off, no way the Jacks would retract fast enough to prevent damage.

JohnCZ 10-28-2021 06:34 AM

As a few posters have noted, it is strongly recommended that diesel engines have a 3 to 5 minute cool down period and a 3 to 5 minute warm up period.
That is the perfect time to address your slides and jacks.
Arrive: park, get my 50 amp cable out, not connect, hit the auto-level, which dumps air, levels and stabilizes, extend slides, connect power, shutdown the engine.
Engine cooldown achieved.
Depart: all inside travel prep completed. Water and sewer disconnected. Pre-trip checks completed. Start engine for warm up. Retract all slides. Hit "Store" on jack system. Disconnect shore power and put cable away. Hit the road. Engine warm up achieved.
Note: even though the manuals for many of the Tiffin REDs state ignition needs to be "on" when operating slides, that is not intended to dictate that engine is not running. When operating the slides and jacks, the engine can be running, or not running if you already achieved the important warm up or cool down.
One other note: I wish there was a way to dial back the volume of the loud beeping that occurs the entire time the key is on and the air is dumped, or pressuring up. The pets absolutely HATE this. Does anyone know where the beeper is located? Maybe I can muffle it?

Ohio44718 10-28-2021 06:56 AM

I would think the original poster, FredT, who appears to be new to owning a larger RV, is totally confused at this point. Documentation in the manuals conflicting, and many of us seem to have different approaches. Think most of us appear to agree that the slide motors pull a lot of power. Key here is to supplement your batteries wherever possible. Some prefer shore power or generators, others with the motor running. The one reason I always used shore power was concerns that the air bags might try and inflate again and to keep noise down to a minimum. After years of using shore power, I read somewhere that the system in my Phaeton had a lockout that prevented the air bags from reinflating when the Jacks were extended. Never dug into it further since using shore power seemed to work. If dry camping somewhere without shore power, would definitely suggest poster to use the motor or generator to prevent unnecessary drain on the batteries when possible.

DRM901 10-28-2021 07:46 AM

Back to the OP question, all 2016 or so Tiffins and older do not have a factory installed BIRD. They just have a solenoid that allows you to combine the 2 battery banks as long as you hold the boost switch down.

Therefore, running the engine will have no impact on the house batteries (which drive the slides), if you don't have the boost switch down.

However, if you are plugged in, the inverter/charger will help the house batteries while you are operating the slides.

I've always followed the warm up/cool down the engine while you work the slides and jacks. After my test to confirm they are powered by the house batteries, I'll just be sure I disconnect the shore power after those 2 steps.


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