Hydraulic pump Failed **ALL FORETRAVEL OWNERS SHOULD READ**

Topic: Hydraulic pump Failed **ALL FORETRAVEL OWNERS SHOULD READ** (Read 17027 times) previous topic - next topic

Re: Hydraulic pump lost while out sourcing a pump

Reply #50 – November 13, 2023, 11:27:44 pm

Quote from: turbojack – November 13, 2023, 07:34:27 pm

Mike, if you have the specs for the one that was on your coach and has been discontinued, why can you not take that and find a new one that matches.?

I did a google search on causes of pump shaft to break. The main answer is "The most common cause of shaft breakage is (rotational) tensile bending fatigue. "

While I was typing this I remember a friend that troubleshoots why multi million dollar engine fails had told me that he has see crankshafts and all kinds of items running off the engine break due to running the wrong belt tensioner on an engine. I am going to send him the picture you have of the broken shaft and see what he has to say.

TJ,
Yes I have all the specs for the QCC 41188. Though I have lots of lifelong technical expertise in electronics and Automated systems, as well as ASE certifications for most automotive systems, Heavy Hydraulics is not one of them. But I have worked on and supported Hydraulic systems in my 40 year career. Though I have rebuilt several heavy farm tractor hydraulic pumps in my day, I also know that if even one spec is off, the system might not properly work or explode when pressure hits it. There I felt it best to let a person that truly knows hydraulic systems assist in that. The shop that presently has my pump is offering to assist in that search, but all of this just was able to transpire starting today due to a holiday on friday, the weekend and the fact we only made it home in our toad yesterday......In order to spec it properly, and have confidence that it will 100% do the proper job, the owner of the shop requested all specs for the existing pump as well as any complete description of the hydraulic system of the coach......But yes that is part of my plan as the OE designed one is no longer available in stock anywhere of even still manufactured....I left it with him so he could later today take measurement of all items, as well as start trying to do what he could until I provided those specs. I was able to get him ALL of the pump specs a few hours later, but still hoping to get some help here with the schematic flow diagram of the coach system..

If you look at my early pictures you can see that my pump shaft had internal rust, prior to the sheering, that is indicative of a long time back stress crack having allowed moisture to penetrate said crack weakening it over time. No doubt this was a strong contributing factor.

I myself installed new tensioner on both the Hydraulic pump belt and the main belt after I bought our RV 2.5 years ago, now 6k of running under my ownership. Not aftermarket but the exact recommended tension devices.

At the recommendation of CRANEMAN, earlier up this post I got in contact with a Hydraulic repair shop in Albuquerque on Saturday. A shop that had recently helped another forum member with the very same Problem. TLC Erik Wankel. Erik and I spoke on this matter for near 2 hours. He and his shop have dealt with countless failures of these early model tapered shaft pumps. He says on average 2+ a year. In his opinion what he has found over the years is a few contributing factors that might could be causing these failures. Having worked in heavy industry for 40 years, around many hydraulic system. I have seen several applications fail in my work career that do agree with some of what he stated.

1. Neglect to the filters and/or fluid reservoir to a point that sludge might build in the system causing the pump to surge,internal gear hammer
2. failed or improper/too loose tensioner causing undue jumping of said once again causing surge or internal hammering of the gears. Mainly a loose condition. the desired design is to have a very tight tensioner with minimum movement. I myself have seen several that the tensioner is jumping all over. Mine was jumping all over the place when we purchased it. Part of my getting it back in top shape was all belts and both tensioners. Since I installed a new one mine moves some but very little. Yet to see one perfectly still.
3. Most properly designed hydraulic systems have several feet of suction line to avoid suction side vacuum surging in the event of low feed flow due to lack of liquid which could also be caused by clogged filters. Our systems have very short suction sections, which may or may not also cause hydraulic surging.
4. Pumps mounted too closely to their drive mechanisms with very short radius belt runs and of course the tensioners. Longer belt runs allow the belt to move more than the tensioner. Out systems have incredibly short belts.
5. Any of the above is hard on any hydraulic system. Harder even more on solid shafts with keyways, vs splined shafts.

I think alot of the cause of the failure of ours, was probably the very sloppy tensioner, as well as unknown maybe prior lack of PM. The rust internal shaft tells part of the tale. But all this being said, there have been many documented cases of these tapered shaft pumps failing due to sheering of the shafts. I am not the first. The fact that the pump is now totally not available only complicates the matter.Although the fluid I drained out of the bottom of our reservoir was pristine clean, I do plan to install new filters and fluid along with whatever pump I finally hope to bring it home with.

Thanks for your efforts with the experienced friend, be interested to hear the opinion. Here are some up closes of said failure ( 1 posted earlier

Re: Hydraulic pump lost while out sourcing a pump

Reply #51 – November 13, 2023, 11:48:36 pm

Quote from: juicesqueezer – November 13, 2023, 08:21:54 pm

Mike, there is a Cummins place just off I-65 in Nashville. If you are in Goodlettsville, you are close to it. There are many places around for hydraulic pumps, etc. I am located here in Watertown, TN, not that far from you, maybe 35 miles east of Nashville and Lebanon, TN. If I can help, let me know or you can bring coach out here and park in front of mine. Let me know. You can access my phone number on my profile or just message me. Good luck!

Joe,

Thank you very much for your offer, and if my present plans fall through I may take you up on that offer. At the moment I am paid for for 30 days at the GrandOleRV resort exit 98 Goodlettsville. I would have to have it towed as I have zero steering and only good for about 3-4 miles before my engine temps get to 200+ which I dont want to damage more by doing that. Good to know on the cummins place, but all I have spoken to on the matter stated I would probably have better results dealing with a Hydraulic shop as this is not a cummins item. All supposed Hydraulic repair shops I have spoken to say if its a sheered shaft, get a new pump they cant help with that.....as the Pump is no longer avail through any resource, Im doing the next best thing with a local Hyd shop. But at the same time sort of hard to re-design a system when the patient is 300 miles away. Luckily the manufacturer is trying to help with a possible indentical shaft that failed, but dont know till it gets here by end of week, along wit the new reservoir filters....Would prefer to have it in my yard in front of my shop before and alternate approach is attempted if possible... Ill try to contact you tomorrow....thank you sir.

Re: Hydraulic pump lost while out sourcing a pump

Reply #52 – November 14, 2023, 01:14:29 am

Mike, just a shot in the dark but what about calling some RV wrecking yards to see if they might have the same pump as yours? Siteone rv parts is one such place.

Re: Hydraulic pump lost while out sourcing a pump

Reply #53 – November 14, 2023, 09:03:18 am

Quote from: rbark – November 14, 2023, 01:14:29 am

Mike, just a shot in the dark but what about calling some RV wrecking yards to see if they might have the same pump as yours? Siteone rv parts is one such place.

They don't show the number "QCC 41188", but Visone does have several Sauer Danfoss hydraulic pumps if you know that part number (I put Danfoss in the search box):

https://rvchassisparts.visonerv.com/cgi-bin/f/search.pl?

(I hate to bring up a sad subject, but if anyone knows where Rudy's 2001 went, it's possible that hydraulic pump survived the fire)

Re: Hydraulic pump lost while out sourcing a pump

Reply #54 – November 14, 2023, 09:26:27 am

Michelle is correct. The engine compartment was not damaged. But I have no idea where the insurance company had it moved to.

Re: Hydraulic pump lost while out sourcing a pump

Reply #55 – November 14, 2023, 09:31:23 am

I just did some digging (in the parts manuals in the forum library.) The U295 used a different hydraulic pump than the U320.

U295 41188 CPJ 030 W/TAPERED SHAFT

U320 41078 CPJ 030 L 2 ## CB 040 150 (SPCL RV)

Re: Hydraulic pump lost while out sourcing a pump

Reply #56 – November 14, 2023, 10:37:06 am

Thanks for continued thoughts folks.....yes I have feelers out with at least VISONE salvage. They asked for pictures this morning of my old one and I just sent them.

Re: Hydraulic pump lost while out sourcing a pump

Reply #57 – November 14, 2023, 10:40:11 am

Quote from: Michelle – November 14, 2023, 09:03:18 am

They don't show the number "QCC 41188", but Visone does have several Sauer Danfoss hydraulic pumps if you know that part number (I put Danfoss in the search box):

https://rvchassisparts.visonerv.com/cgi-bin/f/search.pl?

(I hate to bring up a sad subject, but if anyone knows where Rudy's 2001 went, it's possible that hydraulic pump survived the fire)

Michelle,

Back when it was built it would have been a SAUER SUNDSTRAND, but they got sold to DANFOSS, then sold to WEBSTER, QCC took over building them from WEBSTER about a decade back so I am told. QCC was the last known manufacturer and the company that is trying to assist with just a possible shaft....Shaft and entire seal kit ETA later this week.

Re: Hydraulic pump lost while out sourcing a pump

Reply #58 – November 14, 2023, 10:43:01 am

Quote from: Michelle – November 14, 2023, 09:31:23 am

I just did some digging (in the parts manuals in the forum library.) The U295 used a different hydraulic pump than the U320.

U295 41188 CPJ 030 W/TAPERED SHAFT

U320 41078 CPJ 030 L 2 ## CB 040 150 (SPCL RV)

I will add the picture in that PDF of the one for the U295 is incorrect. the picture shows a splined shaft, the 41188 is a tapered shaft.

Re: Hydraulic pump lost while traveling sourcing issues

Reply #59 – November 16, 2023, 08:01:35 pm

Keep us informed

Re: Hydraulic pump failed while traveling ALL FORETRAVEL OWNERS SHOULD READ

Reply #60 – November 19, 2023, 11:32:30 am

Very luckily, I was able to find the 1 failed part on my pump (41188) and my coach is back home. That part is now NLA. But what to do moving forward as this is an occasional failure, and could happen again? I don't feel good about not having a spare pump. As stated in an earlier comment, I have spoken to several national Hydraulic/Fleet repair facilities. Identical failures on these tapered shafts pumps are at the rate of 2+ per year, per shop for the past decade. ALL shops have just ordered new complete pumps, which are now (effective 1/23) no more.

The next person this happens to, will be forced to abandon/sell their coach and toad home. Lord help those that are full time and their coach is their home.

This week I have learned this much to be fact.
QCC is the last known manufacturer of all the pumps I will list below.
ALL of the following pumps are No longer produced or any available to purchase. They all share the same rear housing.
ALL were discontinued effective January 2023.

I know for a fact based on the information that Michelle has provided, this affects many if not all of the U295's and U320's out there. I have no idea if the rest of these numbers may affect other Foretravel models.

I will add, the 41188 and the problems with the occasional sheered shaft is a belt driven design. The 41078 is a direct gear driven splines shaft approach with no failures I have read of. But, all things can eventually fail. As for the rest of the pump numbers, I have no idea how they are driven.

I will also state this, as I know it to be fact based on all my research. The commonly used Vickers V10, (V10F-1S5T-1C10-J20) used on Coaches just before mine, and others is also a commonly used tapered shaft pump that is also no longer available, and also suffers the same occasional failures. (such was the pump of forum member STOWERS6, a few weeks back)

These are the pumps no longer produced by QCC. If more of these are Foretravel used, then we would hope FT would take notice to this. Just how many other coach brands might also use these, giving thought to also posting on IRV2.

41188 (U270, U295)
41078 (U320) Possible report of one U320 having the above p/n instead - please verify the actual pump on YOUR coach
40994
41063
41079
CPJ-1041
CPJ-1007V
CPJ-1020
CPJ-1007
CPJ-1013

In closing this topic....for now.....and a very tiny, faint glimmer of hope.
My contact at QCC has stated that they had an upper level meeting earlier this week about the decision to purchase more of the rear housings. That as they affect a large market (RV Industry) that there did appear to be an occasional demand for these pumps in the list. (BASED ON lack of other PARTS, THIS DOES NOT MEAN ALL PUMPS WOULD BE REVIVED, 41188 BEING ONE THAT PROBABLY MIGHT NOT UNLESS DEMAND IS THERE) General agreement in that meeting was to move forward with purchasing more rear housings, IF the head of finance would agree (that person was on vacation)

My request/ suggestion to any Foretravel owner is such...
Find out what part number YOUR hydraulic pump is, and compare to this list. If you find that your coach is affected by this, take the time and do the following as a few close FT friend have suggested to me, they would do....you might be the next one stranded, but in your case zero hope.

To all owners affected: Contact my person at QCC in email form. Thank them heavily for the way they assisted in at least one FT owner's situation while our coach was stuck hundreds of miles from home. Show support for the situation and get the point across that the occasional demand for many of these pumps would be there. Be sure and mention your pump number. Mention me.

Brett, Michelle, etc.....you seem to know way more people than I do when it comes not only to FT but diesel pusher coaches in general. I am hoping you two will take the time to share all of these finding with high level folks at Foretravel, FOT & MOT. They pride themselves in being the longest lived manufacturer of premium diesel motor coaches (1967 – present). They maintain/keep/sell millions of dollars in parts to the FT crowd. What would be their reaction to the fact that FT's could fall out of popularity with the coach buying/owning crowd? Who wants to buy a coach that has a major part that cannot be obtained? We love ours and do not want to part with it....But put yourself in my shoes, as well as anyone that is also affected. All 3 as a manufacturing and support industry need to support this issue as well.
I am hoping you 2 or more have contacts that this can be shared with.

Anyone is welcome to contact me personally on this matter.

FYI.....I have scoured ALL US based bus/RV/heavy equipment salvage yards. The 41188 is not out there.

Mike Crawford
334-419-6256
Mkc_1962@yahoo.com

QCC Contact, (and I was given the ok to pass this information out to anyone)
Simone Morris | Senior Product Sales Engineer
+1-708-887-6282| simone@qccorp.com or morris@qccorp.com

Re: Hydraulic pump failed while traveling ALL FORETRAVEL OWNERS SHOULD READ

Reply #61 – November 19, 2023, 11:57:09 am

Quote from: mkc1962 – November 19, 2023, 11:32:30 am

Brett, Michelle, etc.....you seem to know way more people than I do when it comes not only to FT but diesel pusher coaches in general. I am hoping you two will take the time to share all of these finding with high level folks at Foretravel, FOT & MOT.

I am hoping you 2 or more have contacts that this can be shared with.

Mike,

Unfortunately, I have had no contacts at FT/FOT for a number of years, especially at the high level.

I will alert MOT's service director, Derek DiVerdi, to this topic. I haven't spoken with him in a long time, but he might remember me.

Re: Hydraulic pump failed while traveling ALL FORETRAVEL OWNERS SHOULD READ

Reply #62 – November 19, 2023, 12:12:28 pm

Mike thanks for all your work on this. I too talked to Simone, very knowledgeable genuine wants to help the customer person. The key here is Foretravel repair facility's , as well as owners willingness to purchase a couple of these pumps for stock. I for one would have a spare on hand. There has to be some willingness for folks to put some skin in the game before QCC builds them just to have them on their shelf.

Re: Hydraulic pump failed while traveling ALL FORETRAVEL OWNERS SHOULD READ

Reply #63 – November 19, 2023, 12:26:54 pm

Quote from: bbeane – November 19, 2023, 12:12:28 pm

Mike thanks for all your work on this. I too talked to Simone, very knowledgeable genuine wants to help the customer person. The key here is Foretravel repair facility's , as well as owners willingness to purchase a couple of these pumps for stock. I for one would have a spare on hand. There has to be some willingness for folks to put some skin in the game before QCC builds them just to have them on their shelf.

I would also like to have a spare on hand and would be willing to buy one to keep in my stock. I will need to check my pump because I currently have no idea which one the M11 in our 1995 U320 would have.

Re: Hydraulic pump failed while traveling ALL FORETRAVEL OWNERS SHOULD READ

Reply #64 – November 19, 2023, 12:37:43 pm

Where on the pump is this part number stamped can you find it with out removing the pump You didn't mention any U270 just the u295 or the u 320 is this because of the bigger engine. Is there anyway an other pump be modified to be put on. I don't understand why an other pump can't be fabricated to fit this application of two radiator motors and a power steering box I know nothing about a hydraulic system but there's a hydraulic company in my town that are busy, making up hydraulic systems for fishing boats , boat haulers with all kinds of different options like hauliers, winches, hydraulic pistons, trap hauliers just curious what would be the procedure to fabricate a new pump for our system. I know this wouldn't help someone stranded on the road but just wondering if a new system could be made up if you were home. I had an uncle working in the hydraulic shop and he told me they use to remove the part numbers of any system so that the customer would have to go back to them. I would not like to have too junk my coach just over a pump there must be away to install an other pump. This has me very worried about the future of my coach. It scares me I just travelled from one end of the US and back home here in Canada over 9000 miles and would not have liked to be stranded on the road. I had just went thought Nashville the day before this happened to you and I was worried the rest of the way home. It was always on the back of my mind.
I would be willing to purchase a spare pump if I could get my hands on one

Re: Hydraulic pump failed while traveling ALL FORETRAVEL OWNERS SHOULD READ

Reply #65 – November 19, 2023, 12:39:53 pm

Quote from: Michelle – November 19, 2023, 11:57:09 am

Mike,

Unfortunately, I have had no contacts at FT/FOT for a number of years, especially at the high level.

I will alert MOT's service director, Derek DiVerdi, to this topic. I haven't spoken with him in a long time, but he might remember me.

Michelle, I was just hoping that either of you two might. Please do what you can, you already provided some very important info on the models affected, it would be nice to know if there are any other models.

As I bought ours from MOT I think I will reach out to the guy I used, to make him aware and ask him to share with anyone he knows, or see can he provide. Worst case I will call FT myself and see can I get any names.

I also just posted a link to here on the IRV2 forums. According to my contact at QCC the bulk of these style pumps were manufactured specifically for the RV/MH industry. This could affect just about any brand of diesel pusher out there.
Thanks for anything you do. Mike

Re: Hydraulic pump failed while traveling ALL FORETRAVEL OWNERS SHOULD READ

Reply #66 – November 19, 2023, 01:10:47 pm

Quote from: Cape Bretoner – November 19, 2023, 12:37:43 pm

Where on the pump is this part number stamped can you find it with out removing the pump You didn't mention any U270 just the u295 or the u 320 is this because of the bigger engine. Is there anyway an other pump be modified to be put on. I don't understand why an other pump can't be fabricated to fit this application of two radiator motors and a power steering box I know nothing about a hydraulic system but there's a hydraulic company in my town that are busy, making up hydraulic systems for fishing boats , boat haulers with all kinds of different options like hauliers, winches, hydraulic pistons, trap hauliers just curious what would be the procedure to fabricate a new pump for our system. I know this wouldn't help someone stranded on the road but just wondering if a new system could be made up if you were home. I had an uncle working in the hydraulic shop and he told me they use to remove the part numbers of any system so that the customer would have to go back to them. I would not like to have too junk my coach just over a pump there must be away to install an other pump. This has me very worried about the future of my coach. It scares me I just travelled from one end of the US and back home here in Canada over 9000 miles and would not have liked to be stranded on the road. I had just went thought Nashville the day before this happened to you and I was worried the rest of the way home. It was always on the back of my mind.
I would be willing to purchase a spare pump if I could get my hands on one

Rick,

I can answer near all your ?s, lets start with the simple one.

In the case of mine and I am told should be on all of them. If you lay under the coach and look up there will be a very flat section that is the bottom of the rear housing. If its a new QCC there should be a data plate as someone posted in an earlier response. If its an older DANFOSS or WEBSTER or SAUER as mine was, that bottom flat section will have numbers stamped into it. You might see a 40998 stamped, that would be the number for the rear housing, not the actual pump number. The 41188 in my case was also stamped on there but at a much smaller stamping size. your looking for one of the numbers in my list.

I have been in touch with 3 Hydraulic shops as well as up to 4 national Hydraulic component distributors. NOBODY will touch this system ( or anyone like it) with a ten foot pole to assist in any sort of specing of alternate approach due to the fact it is tied to vehicular safety / steering. This would need to be engineer designed between somebody like FT and QCC. Even QCC does not offer another one close enough to this one that they could recommend.

Ive worked in heavy manufacturing industry for over 36 years, I have spec'd equipment for decades, and yes with enough time, money and tenacity I could probably myself get pretty close to coming up with a alternate Hydraulic pump, and a separate Priority flow divider that might work. But then trying to find a unique pulley for it would be another challenge as the mass of Hydraulic pumps for over a decade have abandoned the pulley approach. Trust me, I have thought of everything you ask, but ive taken it one further and tried to make that happen. IF I myself were to end out going at it solo and be successfull, I would never share what I find for the same reasons all the manufactures wont.....sue able liability. I myself would like to see a standard pump and a standard FPD that anyone could readily get to take the place of this obsolete combo unit, but just dont think that is going to happen.

You and others should be concerned/worried.....and as masses you can have some possible affect in the outcome of this. If all readers of this post do is read and pray, then they deserve the outcome that might come their way. But I have given you all a way to make a possible difference....if this affects you, do just that....then we can all sit back and pray it happens.

To quote my buddy Bruce,...IF the masses show they will put some skin in the game, and start by making that contact I request, QCC has already told me they might continue with these product. They are in business to sell Hydraulic pumps, they are not in the business to provide unicorns that will only sit on shelves. I Myself have shed quite a bit of skin,hair and brain cells over this matter, I have spent $ with QCC to get where I am, as well as committed to buying another should they ever become available again....I sit back and wait to see just how many others are willing to do the same.

Re: Hydraulic pump failed while traveling ALL FORETRAVEL OWNERS SHOULD READ

Reply #67 – November 19, 2023, 02:07:00 pm

Thank you for all your hard work. I will have to check mine out too.

Re: Hydraulic pump failed while traveling ALL FORETRAVEL OWNERS SHOULD READ

Reply #68 – November 19, 2023, 02:17:32 pm

Quote from: mkc1962 – November 19, 2023, 12:39:53 pm

I also just posted a link to here on the IRV2 forums.

I think you're going to get a private message from IRv2 and a deleted post. They don't take to kindly to someone posting links away from their site to another forum.

Re: Hydraulic pump failed while traveling ALL FORETRAVEL OWNERS SHOULD READ

Reply #69 – November 19, 2023, 02:31:35 pm

Quote from: turbojack – November 19, 2023, 02:17:32 pm

I think you're going to get a private message from IRv2 and a deleted post. They don't take to kindly to someone posting links away from their site to another forum.

Yes, better to copy and paste what was posted here with a little modification to describe what the pump drives and how it is driven (to distinguish it from the PTO-driven pumps).

And, wonder if there are PTO-driven pumps that meet the same/close to the same specs and are still in production?

Re: Hydraulic pump failed while traveling ALL FORETRAVEL OWNERS SHOULD READ

Reply #70 – November 19, 2023, 02:33:46 pm

Quote from: mkc1962 – November 19, 2023, 12:39:53 pm

As I bought ours from MOT I think I will reach out to the guy I used, to make him aware and ask him to share with anyone he knows, or see can he provide. Worst case I will call FT myself and see can I get any names.

I've sent an e-mail with the link to the topic to Derek DiVerdi at MOT. He's their service director.

The best bet at Foretravel might be James Triana. He has been the lead Technical Support person there off and on for at least 20 years (when he wasn't Warranty Manager). It appears their service director (technically at FOT) is Braxton Spain. I don't know him at all. Phone numbers appear on the FOT website FORETRAVEL

Re: Hydraulic pump failed while traveling ALL FORETRAVEL OWNERS SHOULD READ

Reply #71 – November 19, 2023, 03:59:20 pm

Mike,
Thank you for all the work and follow-up you did on this pump situation. I'm sure it was a real pain gathering all this information while at the same time getting your wife back to work and your coach back on the road.

I just finished sending am email to Mr. Morris at the address you provided.

I urge everyone on this site to communicate to Mr. Morris your financial commitment for a pump purchase. I realize it could be a chunk of money just sitting on your spare parts shelf that you may never use, but just imagine being stuck somewhere and the pump being unavailable.

While I realize making a commitment does not guarantee pumps or rebuild parts/kits being made, if enough demand is there to make it financially viable, the company will respond. They are there to make money.

Maybe as a group, we can make this happen!

Re: Hydraulic pump failed while traveling ALL FORETRAVEL OWNERS SHOULD READ

Reply #72 – November 19, 2023, 06:05:43 pm

The more I Think about this problem and what causes the shaft to snap it brings me back to my steering box . My steering box started to leak from the end cap so I ordered a seal kit when I removed the end cap to replace the seal just the end cap seal there were small bits of a very hard substance all in very small pieces around the bearing if you put all the pieces together it would have made a circle someone said at the time it was glue that they use to keep the seal or bearings in place when they assemble the steering box new at the factory and that it deteriorated and braking apart I figured that's why the seal is leaking because of this substance. I left on a trip to Florida and on my way down the Pittman seal started to leak when I got to Florida I had to have the box replaced I brought it to Paul Yasbeck in Leesburg Florida and he suggested I service the hydraulic reservoir so I did and I ask him to replace all the belts and tensioner's because the hydraulic pump tensioner was jumping . About a year after back home in Canada I started the coach up one day and a loud bang noise was coming from the engine I thought there was a connecting rod come through the block that how loud it was I shut it down I open the engine door all look good so I started it back up and ran to back and the tensioner was slapping back and Forth against the hydraulic pump pulley very fast and hard I shut it down went back to the tensioner it look OK put a strong arm on it and move it back and forth the tensioner felt good and had a good strong tension it look and felt fine started it up and everything was running perfect the tensioner was as steady as new no jumping at all I didn't take a chance I replace the tensioner now I m thinking that that hard substance from the steering box was passed through the hydraulic system and was jamming the pump Could it be this substance jammed the pump and shear the pump shaft maybe the hydraulic tank should be serviced to see if anything is present. I know the filter is suppose to catch any dirt .but something caused that shaft to break

Re: Hydraulic pump failed while traveling ALL FORETRAVEL OWNERS SHOULD READ

Reply #73 – November 19, 2023, 06:10:11 pm

Quote from: Cape Bretoner – November 19, 2023, 12:37:43 pm

Where on the pump is this part number stamped can you find it with out removing the pump You didn't mention any U270 just the u295 or the u 320 is this because of the bigger engine.

We (the forum) don't (doesn't) have a U270 Parts Manual in the Files section, so we'd need someone with a copy (or who's got that model coach and had the pump replaced) to advise as to the part number.

If someone has such a Parts Manual in PDF form, please try to upload it. If it's too large, PM me and we'll figure out how to get it into the forum Files.

Re: Hydraulic pump failed while traveling ALL FORETRAVEL OWNERS SHOULD READ

Reply #74 – November 19, 2023, 06:13:08 pm

Doesn't the 270 have the same engine as the 295? if so wouldn't it be the same pump?

Affiliate Notice