Little help with 1425

   / Little help with 1425 #1  

barrell

Member
Joined
Nov 5, 2003
Messages
31
So I have a 1425 I bought about 30 years ago new. I have a bucket, brush hog, finish mower and a rototiller. I installed a new Kholer 25 hp last summer. Its been great with the new motor except for a bunch of cylinder leaks that developed after the new motor was installed which I assumed showed up because of the extra power from a new motor. Anyway I rebuilt all the cylinders and tractor has been fine.
Yesterday I was brush hogging . I finished about 3 acres when a stick must have come up and knocked the pin out that connects the brush hog to the tractor just below the male and female hose connections. The tiller pushed up against the female connector (coming off the hose on the brush hog) and knocked it loose from the male end attached to the manual PTO.
So no problem I carry spare pins. I put a new pin in and reconnected hose to brush hog and now the blade spins slowly. Since i had a small leak around the control handle of the manual pto block I pulled that and inspected all the fittings. I picked up to fresh O rings at John Deere and reassembled pto block. I put a new hydraulic filter on. After installing everything back together, my leak was gone but I still only had slow rpms on the brush hog blades. I guessed then my problem was either the pto pump not producing enough pressure or the motor on the brush hog. So I connected my finish mower which I hadnt used in 20 years and I had full rpms on the finish mower. So that eliminated the pto pump from the equation and narrowed it down to a problem with the motor on the brush hog or the two hoses.
Im hesitant to pull the motor off the brush hog because the problem started instantly when the hose coupling got knocked apart. Up to that point it was working perfectly. I was going to wait till PT reopens to pick their brains but I figured I would ask here. Is it possible since it was running wide open when the hose got knocked off that there is internal damage inside one of the two hoses I cant see? The second hose stayed attached when the one got knocked off. Id hate to open a can of worms by pulling off the brush hog motor, since it was working perfectly before the sudden disconnection.
And finally if I do decide to pull the brush hog motor can I simply pull the cap and access any rebuild-able components while leaving the bottom section attached to the mower or do I need to remove the blades and pull the entire motor?
 
Last edited:
   / Little help with 1425 #2  
Does the cutter have a case drain hose? (a 3rd hose to the tractor)
 
   / Little help with 1425
  • Thread Starter
#3  
Does the cutter have a case drain hose? (a 3rd hose to the tractor)
no Just the two standard hoses one male and one female quik connect.
 
   / Little help with 1425 #4  
does the blade spin freely by hand when the hoses are disconnected from the machine and connected together? Maybe there's a problem with the hub in the deck, or the motor is seizing? Just some things to think about.
 
   / Little help with 1425
  • Thread Starter
#5  
does the blade spin freely by hand when the hoses are disconnected from the machine and connected together? Maybe there's a problem with the hub in the deck, or the motor is seizing? Just some things to think about.
Ill try that. When hoses are atached and its full rpms the brush hog blade is spinning at about two revolutions per second and its quiet. blade is still in the folded position as its spinning so slow
 
   / Little help with 1425 #6  
You can also just pull the motor off of the lovejoy and see if the hub with blades spins freely to narrow it down to the motor or hoses.
 
   / Little help with 1425 #7  
Given your description, I would check first to make sure that the couplers are full flow, I.e. nothing foreign inside, and then I would check as @MossRoad suggests to see if the motor turns freely. You may not have a lovejoy, so I would just couple the hoses together and see how it spins by hand. If it doesn't spin easily, I would be thinking foreign object in the motor, with possible motor/bearing damage. Sorry.

All the best,

Peter
 
   / Little help with 1425
  • Thread Starter
#8  
Can I get inside the hydraulic motor by just removing the cap (4 bolts on top)? Any body have a diagram of what it looks like inside? Is it possible I just blew a seal and oil is flowing through without giving me power?
 
   / Little help with 1425 #9  
As above I think, easy first, swap the qc's off the finish mower and see if that helps.

Best,

ed
 
   / Little help with 1425 #10  
Can I get inside the hydraulic motor by just removing the cap (4 bolts on top)? Any body have a diagram of what it looks like inside? Is it possible I just blew a seal and oil is flowing through without giving me power?
Yes, it is possible, but given your description it wouldn't be my first thought.

Disassembling hydraulic motors really needs to be in a super clean, dust free area. You don't really want to be loosening those bolts out on your mower. I would wait before pulling the motor off. You probably want to talk to Power-Trac before any disassembly...

All the best,

Peter
 

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