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wacker neuson 9503 no hydraulics

Newbury1289

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Joined
Aug 11, 2022
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15
Location
east coast
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Auto/diesel mechanic
i have a 2013 Wacker Neuson 9503 rubber tire excavator, I had a problem with the hydraulic pump that runs the travel drive that mounts to the gearbox, I still had all hydraulic functions for everything else, i had the pump sent out and rebuilt the shop said the pump was very worn due to age, i put the pump back in and everything was working great but now i lost all functions of my hydraulics and have a starting issue, i am guessing a safety tripped the only way i can get it to start is to jump the starter soloed, I have checked fuses and relays, I also keep blowing the 10 amp fuse for parking brake as soon as I put machine in travel mode, any advice would be greatly appreciated.
 

uffex

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Jan 23, 2012
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Lincoln UK
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Good day
Do you have any schematics for the machine?
Kind regards
Uffex
 

Newbury1289

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Aug 11, 2022
Messages
15
Location
east coast
Occupation
Auto/diesel mechanic
I do have some hydraulic schematics but a lot of the electrical pages are missing half the page when they were printed
 

uffex

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Good day Newbury
You describe a pump to the travel gearbox, do you mean the motor?
If you can post what information you have to a Google Drive and post me the link, I will try to help out.

Kind regards
Uffex
 

Newbury1289

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Joined
Aug 11, 2022
Messages
15
Location
east coast
Occupation
Auto/diesel mechanic
Yes it is the motor that mounts to the gear box that is for the travel drive. unfortunately all my manuals are paper copies but I will see what I can do, thank you
 

uffex

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Good day Newbury
I will try my end, but it will help a lot if you can post those online.
Kind regards
Uffex
 

uffex

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Good day
If you can take a photo of the motor & label, we may be able to match it up.
 

uffex

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Could you take a photo of the transport motor, I guess it maybe a Rexwroth
 

uffex

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Good day
I suggest you remove one of the main lines & plug the hose with a gauge > plug the open port of the motor, operate the travel, see if we have pressure. This way we can establish if the motor is good.
Kind regards
Uffex
 

Newbury1289

Member
Joined
Aug 11, 2022
Messages
15
Location
east coast
Occupation
Auto/diesel mechanic
Good day
I suggest you remove one of the main lines & plug the hose with a gauge > plug the open port of the motor, operate the travel, see if we have pressure. This way we can establish if the motor is good.
Kind regards
Uffex
found a problem with the cab harness there is a short, also rocker switch for dig/travel mode needs to be replaced, estimated time for cab harness is February of 2023 and rocker switch isn't available until October
 

uffex

Senior Member
Joined
Jan 23, 2012
Messages
4,464
Location
Lincoln UK
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Admin
Good day
That is great news, those rocker switches are available from many outlets, you need to take the switch out and note the pin configuration.
Kind regards
Uffex
 
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