Home » Public Forums » GMCnet » Re: [GMCnet] Lifting the rear of the coach
| Re: [GMCnet] Lifting the rear of the coach [message #355420] |
Thu, 04 June 2020 16:26  |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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The jack attachment for the lift is not as wide as the distance between the
bogie boxes, correct? Is the lift itself capable, capacity wise, to lift a
12,000 pound coach? Same questions for the front end.
Then, after these questions are answered affirmatively, we can make
some suggestions.
Jim Hupy
Salem, Oregon
On Thu, Jun 4, 2020, 2:12 PM Stu Rasmussen (97381.com) via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Greetings all,
>
> I want to lift the rear end of the coach to do tire/brake/airbag/shock
> absorber twiddling.
>
> I have a Bendpak 14K 4-post lift and a 7K rolling jack accessory HOWEVER
> the rolling jack does not go wide enough to get under the bogie
> castings. (A bit of a disappointment, actually)
>
> So my options are:
>
> 1: Lift with the rolling jack under the frame at the bogie position on
> the crossmember (which will be right at the edge of the side frame rail
> and looks pretty stout)
>
> OR:
>
> 2: Get some honking large steel bar stock and fabricate a pair of new
> lifting arms to fit the rolling jack and long enough to get directly
> under the bogies at the lift points.
>
> From a time/material standpoint #1 is the more attractive option but I
> have read many places that the ONLY place to lift the rear is at the
> approved jacking points.
>
> So, which should I do?
>
> Thanks in advance ~
>
> Stu
>
> As a PS, the lift/rolling jack combo also does not adjust wide enough to
> lift the front at the approved points, another disappointment, I
> probably should have saved the $$$.
>
> It would have been much cheaper to get the jack adapter and a bottle
> jack but more difficult to drop the fuel tanks for my creaky old bones.
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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| Re: [GMCnet] Lifting the rear of the coach [message #355421 is a reply to message #355420] |
Thu, 04 June 2020 17:18  |
Stu Rasmussen
Messages: 130
Registered: January 2019
Location: Silverton, OR
Karma: 0
|
Senior Member |
|
|
Yes, the lift total capacity is 14,000 pounds and the jack attachment is
rated at 7,000 pounds.
Yes, you are correct, the lifting arms on the jack attachment do not
adjust wide enough to get centered under the bogies.
Stu
On 2020-06-04 14:26, James Hupy via Gmclist wrote:
> The jack attachment for the lift is not as wide as the distance between
> the
> bogie boxes, correct? Is the lift itself capable, capacity wise, to
> lift a
> 12,000 pound coach? Same questions for the front end.
> Then, after these questions are answered affirmatively, we can
> make
> some suggestions.
> Jim Hupy
> Salem, Oregon
>
> On Thu, Jun 4, 2020, 2:12 PM Stu Rasmussen (97381.com) via Gmclist gmclist@list.gmcnet.org> wrote:
>
>> Greetings all,
>>
>> I want to lift the rear end of the coach to do tire/brake/airbag/shock
>> absorber twiddling.
>>
>> I have a Bendpak 14K 4-post lift and a 7K rolling jack accessory
>> HOWEVER
>> the rolling jack does not go wide enough to get under the bogie
>> castings. (A bit of a disappointment, actually)
>>
>> So my options are:
>>
>> 1: Lift with the rolling jack under the frame at the bogie position on
>> the crossmember (which will be right at the edge of the side frame
>> rail
>> and looks pretty stout)
>>
>> OR:
>>
>> 2: Get some honking large steel bar stock and fabricate a pair of new
>> lifting arms to fit the rolling jack and long enough to get directly
>> under the bogies at the lift points.
>>
>> From a time/material standpoint #1 is the more attractive option but
>> I
>> have read many places that the ONLY place to lift the rear is at the
>> approved jacking points.
>>
>> So, which should I do?
>>
>> Thanks in advance ~
>>
>> Stu
>>
>> As a PS, the lift/rolling jack combo also does not adjust wide enough
>> to
>> lift the front at the approved points, another disappointment, I
>> probably should have saved the $$$.
>>
>> It would have been much cheaper to get the jack adapter and a bottle
>> jack but more difficult to drop the fuel tanks for my creaky old
>> bones.
>>
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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Stu Rasmussen W7QJ
Silverton, OR
'77 Birchaven
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| Re: [GMCnet] Lifting the rear of the coach [message #355423 is a reply to message #355421] |
Thu, 04 June 2020 18:16 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
|
Senior Member |
|
|
Get a piece of .250" wall thickness rectangular steel tubing longer than
the distance between the bogies. Move the jack into position on the lift so
that it matches up with the bogies, place the tubing across the coach under
the bogies, lift until the jack makes firm contact with that tubing, then,
do something similar on the front, but lift on the frame where the front
clip and frame side rails meet. When you are sure that you cannot slip or
slide with the coach, then, and ONLY THEN think about lifting the coach
off the ground and crawling under it. I will look up your lift model later
and verify that what I just suggested is a truly safe way to proceed.
Jim Hupy
Salem, Oregon
On Thu, Jun 4, 2020, 3:19 PM Stu Rasmussen (97381.com) via Gmclist <
gmclist@list.gmcnet.org> wrote:
>
> Yes, the lift total capacity is 14,000 pounds and the jack attachment is
> rated at 7,000 pounds.
>
> Yes, you are correct, the lifting arms on the jack attachment do not
> adjust wide enough to get centered under the bogies.
>
> Stu
>
> On 2020-06-04 14:26, James Hupy via Gmclist wrote:
>> The jack attachment for the lift is not as wide as the distance between
>> the
>> bogie boxes, correct? Is the lift itself capable, capacity wise, to
>> lift a
>> 12,000 pound coach? Same questions for the front end.
>> Then, after these questions are answered affirmatively, we can
>> make
>> some suggestions.
>> Jim Hupy
>> Salem, Oregon
>>
>> On Thu, Jun 4, 2020, 2:12 PM Stu Rasmussen (97381.com) via Gmclist > gmclist@list.gmcnet.org> wrote:
>>
>>> Greetings all,
>>>
>>> I want to lift the rear end of the coach to do tire/brake/airbag/shock
>>> absorber twiddling.
>>>
>>> I have a Bendpak 14K 4-post lift and a 7K rolling jack accessory
>>> HOWEVER
>>> the rolling jack does not go wide enough to get under the bogie
>>> castings. (A bit of a disappointment, actually)
>>>
>>> So my options are:
>>>
>>> 1: Lift with the rolling jack under the frame at the bogie position on
>>> the crossmember (which will be right at the edge of the side frame
>>> rail
>>> and looks pretty stout)
>>>
>>> OR:
>>>
>>> 2: Get some honking large steel bar stock and fabricate a pair of new
>>> lifting arms to fit the rolling jack and long enough to get directly
>>> under the bogies at the lift points.
>>>
>>> From a time/material standpoint #1 is the more attractive option but
>>> I
>>> have read many places that the ONLY place to lift the rear is at the
>>> approved jacking points.
>>>
>>> So, which should I do?
>>>
>>> Thanks in advance ~
>>>
>>> Stu
>>>
>>> As a PS, the lift/rolling jack combo also does not adjust wide enough
>>> to
>>> lift the front at the approved points, another disappointment, I
>>> probably should have saved the $$$.
>>>
>>> It would have been much cheaper to get the jack adapter and a bottle
>>> jack but more difficult to drop the fuel tanks for my creaky old
>>> bones.
>>>
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
_______________________________________________
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