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During our last tour of the country, we developed a small leak in the hydraulic fan motor. I didn't want to tear into it while on the road, so 5000 miles later, we have a nasty grimey engine bay. 

Tom was here to help me get the motor out, and it was quite a learning curve that may help someone else in the future. 

First of all, it wasn't the hydraulic fan motor that was leaking. There is a device bolted to the hyd motor, that is supplied with hyd fluid via a small hose coming off the hyd motor, and a small return line going to the hyd reservoir. There were no identifying marks or lableing on the device that brought up anything in google that looked like the device.

The device is called an Overhung Load Adaptor. It is made by a company called ZeroMax. https://www.zero-max.com/b-overhung-load-adaptors#1  Mine was model L600130. The purpose of the adaptor is to keep any sideways load off of the hyd pump motor. It's a pretty simple device with two tapered roller bearings mated back to back to handle both axial and radial loading. The spline from the hyd motor slips into one end and the other end is the tapered hub for the fan. 

My model was a Zeromax 600 series overhung load adaptor with a high pressure seal on the output shaft. Here is an invoice with the part numbers for the overhung adaptor seals.

The pump is a Vickers MFE 15. I replaced the front seal on it just for grins. Here is the invoice for that seal.


Here are a few tips that Tom and I learned along the way.

We confirmed the leak at the OHLA seal, by taking the motor out but leaving the hoses attached. Then we cranked the engine, and unplugged the speed control solenoid to make it run on high. A white paper towell really shows up red ATF. 

The OHLA has to be taken apart to get out the front seal. Remove the rear seal by standard neanderthal method. There is a huge circlip that holds the bearing assembly in. It takes a serious pair of circlip pliers to compress it enough to remove. The circlip has a bevel on it. When reinstalling, place the bevel facing outward or to the rear. The bevel preloads the bearings. When the bearing assembly is out, the front seal is punched out the front. Carefully press in the new one.

The front seal on the Vickers hyd pump is easily removable without disassembling the motor. I drilled two 1/8 holes in the face of it, screwed in two small sheet metal screws, and pulled it right out. 

You are going to drain almost all the ATF out of the hyd system when you take the hoses off the motor. Be prepared for the flood. It would probably help to empty the reservoir first, but the hoses are still going to spew ATF.

Thanks for letting us join.  Patty and I are searching long and hard for our last coach.  We started off looking at other Alpines until we discovered that the CCC's were too low on newer Alpine Coaches.  So we have moved on to tag axle coaches.  Originally Country Coach, Newmar and Foretravel. I have always liked the Newell.  Especially the model with the raised roof line.  Can't tell you what years or why it was raised.  So I am going to lurk here and eventually ask some questions after I have read all I can here. 
Safe Travels
Tom, Patty and the "BIG DOG" Hannah.

Hello Guros I have another question d0es any know why there’s a big blue tank attached to the 12volt compressor?

IM LOOKING FOR AN 05-07 NEWELL IN GREAT SHAPE TO BUY. THANKS IN ADVANCE.

BRUCE
[email protected]

Detroit 8V92, faded paint, interior mostly original, side hallway floorplan. https://www.rvtrader.com/listing/1984-Ne...5005031955
$15,000

The Motor Coach Store has listed #735. Murphy bed, rear bath only, washer/dryer, wood grain laminate throughout, carpet in salon and bedroom. 116,480 miles, Series 60 Detroit Diesel, Allison HD4060MH transmission.

https://www.themotorcoachstore.com/--200...hp-detroit

How can I increase the power when merging and on inclines? I have a Detroit 60 series in a 2002 Newell Coach.

Hi everyone,  We are looking to trade up from our Newmar to a (my dream coach) Newell.  We have been full timers for about 2 years and absolutely love it!  We are looking to purchase a 2001-2004 with 2-3 slides.  Hoping to learn a lot on this site from all of the Newell experts!

howdy all,

today i took out my prosine 3.0 and started installing a magnum 2812 like alot of you guys have.

a few questions for you

i bought the battery monitor kit and the advanced control panel.

the battery monitor requires the unit be within 5 feet of the batteries.  it has a 4 wire harness that goes to each side of the shunt and plus and minus on the batteries.  it also says it should not be installed in an enclosed area or in where the batteries are.  

i see no way of putting it anywhere else.  did you guys just put the shunt on top of the batteries?

the prosine had a mounting bracket that held it about an inch off the wall.  the magnum is mounted directly to the wall.  no standoffs.  did you make a bracket or some kind of standoff or just put it directly on the wall?

thanks

tom

Rare classic 1975 Newell Coach.  34' diesel pusher.  New allison transmission, new front tires, 3208 CAT, gas generator.  3rd owner.  Parquet floor, double bed in back, a fold out double bed couch.  $15,000 or OBO>text 209 665 9041.