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Hydraulic gear pump vs axial piston pump.

Joined
Feb 22, 2025
Messages
18
Location
Australia
Every thing that funwithfuel has post here is absolutely on the money.
The hydraulic motor looks very similar to a Rexroth bent axis FM series. Is there a tag on the opposite side to were the casedrain hose is? If there is from memory the first 2 numbers are the motor size in cc, thats the amount of oil required for 1 rotation.
Tones I’ve just had a clarification with porters (Hyundai Brisbane) and old mate said the oil flow on “crusher” is 150lpm. “Breaker” 110lpm. But he said you’d want to clarify the specs for the pump as he’s seen a million times blokes cranking up the power and blowing the pump no problem. Question is how would I get info for this pump with the info I have ? Cheers mate Morty
Ps funwothfuel he said that noise is anti cav he believes . Cheers
 

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Tones

Senior Member
Joined
Mar 15, 2009
Messages
4,231
Location
Ubique
Occupation
Ex land clearing contractor, part-time retired
What make and model mower is it? Is there a plate underneath the motor? The numbers in the pictures will be casting numbers and not revelant to the motor size. I guess you bought it used, has the previous owner got any info to help identify it?
Flow makes speed, RPMs, it's pressure that can destroy motors. To give an example the AHWI mulcher I owned had a 63cc Rexroth motor which was rated good for 6000rpm, ran similar flow to yours and spun at around 2000rpm ,⅔s below maximum. I think you're safe on the flow side.
 
Last edited:
Joined
Feb 22, 2025
Messages
18
Location
Australia
What make and model mower is it? Is there a plate underneath the motor? The numbers in the pictures will be casting numbers and not revelant to the motor size. I guess you bought it used, has the previous owner got any info to help identify it?
Flow makes speed, RPMs, it's pressure that can destroy motors. To give an example the AHWI mulcher I owned had a 63cc Rexroth motor which was rated good for 6000rpm, ran similar flow to yours and spun at around 2000rpm ,⅔s below maximum. I think you're safe on the flow side.
 

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Tones

Senior Member
Joined
Mar 15, 2009
Messages
4,231
Location
Ubique
Occupation
Ex land clearing contractor, part-time retired
Mort Check your mail box, top rh corner of your screen
 
Joined
Feb 22, 2025
Messages
18
Location
Australia
What make and model mower is it? Is there a plate underneath the motor? The numbers in the pictures will be casting numbers and not revelant to the motor size. I guess you bought it used, has the previous owner got any info to help identify it?
Flow makes speed, RPMs, it's pressure that can destroy motors. To give an example the AHWI mulcher I owned had a 63cc Rexroth motor which was rated good for 6000rpm, ran similar flow to yours and spun at around 2000rpm ,⅔s below maximum. I think you're safe on the flow side.
Forgot to ask you mate on my 7 tonne Takeuchi TB070 it has these some kind of heat resistor set up. Have you seen this before know what it
Looks as close to perfect as you could ask for. As for setting, I would go breaker or hammer. Depending on what you folks call it down there. But ideally you want one way flow without the possibility of reversing all that weight while rotating. Thats a pretty cool attachment, thanks for sharing it.
opened the dump to tank!
Way better
 

Tones

Senior Member
Joined
Mar 15, 2009
Messages
4,231
Location
Ubique
Occupation
Ex land clearing contractor, part-time retired
There's a great auto electrician in Ballina but don't have any contact details. However if you contact the bloke who had the repair business on the western side of the Pacific Hwy near the BP service centre has it. As of a month ago his phone number was still painted on the building. You maybe able to get it using Google Maps with the 360 view.
Good to hear the mower sounding better.
 
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