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Topic: Hydraulic hose worn by ground strap rubbing  (Read 792 times) previous topic - next topic

Hydraulic hose worn by ground strap rubbing

Forum Gurus - I need a rebuild kit for the legendary hyd pump - #41188 -

please advise

Re: Hydraulic Pump #41188 I need a rebuild kit

Reply #1 –
information out to anyone)
Simone Morris | Senior Product Sales Engineer
+1-708-887-6282| simone@qccorp.com  or    morris@qccorp.com
This is the contact person for QCC they are the only known supplier of these pumps/parts

Re: Hydraulic Pump #41188 I need a rebuild kit

Reply #2 –
It would be interesting to see the mileage and what kind of failure occurred with these pumps,

Re: Hydraulic Pump #41188 I need a rebuild kit

Reply #3 –
After further investigation pump is dry. Main hose is leaking towards the middle. Looks like he could be happening for a long time. That's why my symptoms were gradually not total failure. Going to replace all three hoses off the pump.-.

Re: Hydraulic Pump #41188 I need a rebuild kit

Reply #4 –
Are you sure that is hydraulic fluid.

That is right next to the crankcase breather-- the open to the bottom 1" ID hose.

If the oil is BLACK, it is engine oil from breather.

If it is clear, pink or red, it is hydraulic oil.

Certainly clean the area and then look for the source.

Re: Hydraulic Pump #41188 I need a rebuild kit

Reply #5 –
Quote from: wolfe10 –
Are you sure that is hydraulic fluid.

That is right next to the crankcase breather-- the open to the bottom 1" ID hose.

If the oil is BLACK, it is engine oil from breather.

If it is clear, pink or red, it is hydraulic oil.

Certainly clean the area and then look for the source.


symptoms - rising Air intake temp, Rising water temp, and steering dragging.

Re: Hydraulic Pump #41188 I need a rebuild kit

Reply #6 –
Any drop in hydraulic fluid level?

Your symptoms sound more like a warn pump, assuming fluid level is not well down.

One other question-- when was the last time the hydraulic filters were replaced?

Re: Hydraulic Pump #41188 I need a rebuild kit

Reply #7 –
Quote from: wolfe10 –
Any drop in hydraulic fluid level?

Your symptoms sound more like a warn pump, assuming fluid level is not well down.

One other question-- when was the last time the hydraulic filters were replaced?

checking

Re: Hydraulic Pump #41188 I need a rebuild kit

Reply #8 –
Wolfe - ground cable, rubbing hydraulic hose line looks like it's been happening for a long time finally made its way through to let it seep out. Reservoir is low on fluid, fluid was changed two years ago..

Re: Hydraulic Pump #41188 I need a rebuild kit

Reply #9 –
Good news.  Hoses are a lot less $$$ than hydraulic pumps.

Top off the reservoir (per full on dipstick) and see if your symptoms, particularly steering go away. Let us know how much you have to add.

Re: Hydraulic Pump #41188 I need a rebuild kit

Reply #10 –
wolfe - back to your question about what color is the fluid - the hyd system uses standard 15/40 motor oil.

Re: Hydraulic Pump #41188 I need a rebuild kit

Reply #11 –
Quote from: jcarbone2366 –
wolfe - back to your question about what color is the fluid - the hyd system uses standard 15/40 motor oil.

Correct.

I was asking, because a lot of the oily deposit on the hoses in your photograph looked like black engine oil, not clean, clear oil.

Re: Hydraulic Pump #41188 I need a rebuild kit

Reply #12 –
Quote from: wolfe10 –
Correct.

I was asking, because a lot of the oily deposit on the hoses in your photograph looked like black engine oil, not clean, clear oil.

it was a seep overtime ...... multi years ... this is a great preventive maintenance guide for fellow owners to check their hoses.

Re: Hydraulic hose worn by ground strap rubbing

Reply #13 –
The last picture, is that your battery cable that's worn thru?

Re: Hydraulic hose worn by ground strap rubbing

Reply #14 –
Quote from: rbark –
The last picture, is that your battery cable that's worn thru?

ground strap cable.- I bet you 24 years of rubbing finally wore out the insulation on the ground strap. Then the copper worked at the braided pressure line eventually made it through........ check yours it frost my cookies - MOT should've caught this two years ago! I asked them to go over the coach with a fine tooth comb. I guess buyer beware

Re: Hydraulic hose worn by ground strap rubbing

Reply #15 –
Brings my thoughts back of issues I had many years ago re hoses rubbing on other items. I did warn everyone about this problem  and to get under the coach and find & fix any as there are numerous hoses, wires etc affected. This issue will at some time affect every owner because I found it on 3 different coach's we owned. It was made easier to fix because of my pit I had.
Roof maintenance and under coach Mntce are the area's that are not checked at regular intervals.
Johnh

Re: Hydraulic hose worn by ground strap rubbing

Reply #16 –
All repaired - here is a detail pic of the hose.

Running great now and all temps are in normal operating range - did a 50 mile loop yesterday after repaired

Re: Hydraulic hose worn by ground strap rubbing

Reply #17 –
Good job.  Now checking all my hoses/cables is on the list !

Re: Hydraulic hose worn by ground strap rubbing

Reply #18 –
 That is the kind of thing that keeps me awake at night  So I check under coach and around engine often

Re: Hydraulic hose worn by ground strap rubbing

Reply #19 –
Go by any tire store that works on OTR/off road trucks and get an old truck inner tube. Use it an zip ties to isolate any place a hose can run against anything.

This applies to ALL coaches, as I have seen this issue on all coach brands.