Hydraulic Pump Replacing

billrigsby

Active member

Equipment
L1500DT Too many implements, or is there such a thing?
Mar 17, 2015
999
134
43
Florissant CO USA 8213'
www.facebook.com
Apparently, burned up the hydraulic pump!

Been moving snow all morning after the 36" dump we got.
Lost all hydraulics and the pump is hot and smoking.

This is one area of the tractor I am not so familiar with,
as the hydraulics have been trouble free since 2015 when I purchased the tractor.

The aftermarket replacements on-line have a tapered/keyed shaft, but also a nut?
The manual merely says "pull straight back", is it possible these pumps have multiple uses?

I got the tractor moved out of the way,
but starting was difficult, guessing due to the failed pump and pressure to rotate the pump and fluid?

Going to start the disassembly now.
Has any one used Reliable Aftermarket Parts?
They have one for $194.99
 

TheOldHokie

Well-known member
Lifetime Member

Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Apr 6, 2021
6,851
3,297
113
Myersville, MD
windyridgefarm.us
Apparently, burned up the hydraulic pump!

Been moving snow all morning after the 36" dump we got.
Lost all hydraulics and the pump is hot and smoking.

This is one area of the tractor I am not so familiar with,
as the hydraulics have been trouble free since 2015 when I purchased the tractor.

The aftermarket replacements on-line have a tapered/keyed shaft, but also a nut?
The manual merely says "pull straight back", is it possible these pumps have multiple uses?

I got the tractor moved out of the way,
but starting was difficult, guessing due to the failed pump and pressure to rotate the pump and fluid?

Going to start the disassembly now.
Has any one used Reliable Aftermarket Parts?
They have one for $194.99
Tapered shaft uses a nut to pull the tapers together. Does the pump come out with a gear on the shaft?

RAP is a retailer selling the usual collection of third party parts. Dont expect much technical help from them.

Dan
 

TheOldHokie

Well-known member
Lifetime Member

Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Apr 6, 2021
6,851
3,297
113
Myersville, MD
windyridgefarm.us
Apparently, burned up the hydraulic pump!

Been moving snow all morning after the 36" dump we got.
Lost all hydraulics and the pump is hot and smoking.

This is one area of the tractor I am not so familiar with,
as the hydraulics have been trouble free since 2015 when I purchased the tractor.

The aftermarket replacements on-line have a tapered/keyed shaft, but also a nut?
The manual merely says "pull straight back", is it possible these pumps have multiple uses?

I got the tractor moved out of the way,
but starting was difficult, guessing due to the failed pump and pressure to rotate the pump and fluid?

Going to start the disassembly now.
Has any one used Reliable Aftermarket Parts?
They have one for $194.99
Listing says pump also used on L185. Here is what that applicstion looks like - gear mounted on tapered shaft.

Dan

Screenshot_20240316_153202_Chrome.jpg
 

billrigsby

Active member

Equipment
L1500DT Too many implements, or is there such a thing?
Mar 17, 2015
999
134
43
Florissant CO USA 8213'
www.facebook.com
Tapered shaft uses a nut to pull the tapers together. Does the pump come out with a gear on the shaft?

RAP is a retailer selling the usual collection of third party parts. Dont expect much technical help from them.

Dan

Well apparently that question was dumb and pre-mature, DUH, there is a gear on the shaft!
Next time pay better attention to the picture in the book.

Oddly enough, the pump seems okay,
I will break it down and inspect.

I am not a believer in coincidences, but the tractor is very hard to start all of a sudden?
Needs to crank over a minute or so before starting, but at least it is in the shop,
out of what will be mud shortly!
 

fried1765

Well-known member

Equipment
Kubota L48 TLB, Ford 1920 FEL, Ford 8N, SCAG Liberty Z, Gravely Pro.
Nov 14, 2019
6,464
4,102
113
Eastham, Ma
Apparently, burned up the hydraulic pump!

Been moving snow all morning after the 36" dump we got.
Lost all hydraulics and the pump is hot and smoking.

This is one area of the tractor I am not so familiar with,
as the hydraulics have been trouble free since 2015 when I purchased the tractor.

The aftermarket replacements on-line have a tapered/keyed shaft, but also a nut?
The manual merely says "pull straight back", is it possible these pumps have multiple uses?

I got the tractor moved out of the way,
but starting was difficult, guessing due to the failed pump and pressure to rotate the pump and fluid?

Going to start the disassembly now.
Has any one used Reliable Aftermarket Parts?
They have one for $194.99
I have used Reliable, and I absolutely WOULD NOT recommend them.
Had a damaged in shipping issue (poor packing), and they balked at replacement.
They may be the cheapest, but..... buyer beware!
 
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TheOldHokie

Well-known member
Lifetime Member

Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Apr 6, 2021
6,851
3,297
113
Myersville, MD
windyridgefarm.us
Well apparently that question was dumb and pre-mature, DUH, there is a gear on the shaft!
Next time pay better attention to the picture in the book.

Oddly enough, the pump seems okay,
I will break it down and inspect.

I am not a believer in coincidences, but the tractor is very hard to start all of a sudden?
Needs to crank over a minute or so before starting, but at least it is in the shop,
out of what will be mud shortly!
I would not be taking the pump apart.

Dan
 

North Idaho Wolfman

Moderator
Staff member
Lifetime Member

Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
28,567
5,035
113
Sandpoint, ID
I would pull your old pump first, as there was several configurations used for these older tractors, and it doesn't always follow an exact line.

I've gotten tons of parts from reliable, no issues ever.

FYI: You can start and run the tractor with the pump removed, it won't pump oil out of the motor or anything. I just cover the hole with tape to keep water, dirt out.
 

billrigsby

Active member

Equipment
L1500DT Too many implements, or is there such a thing?
Mar 17, 2015
999
134
43
Florissant CO USA 8213'
www.facebook.com
I am almost more concerned with the sudden 'hard starting' at this point.
A quick check shows 12VDC to the glow plugs,
but need to continue with snow removal at this point.
 

Russell King

Well-known member

Equipment
L185F, Modern Ag Competitor 4’ shredder, Rhino tiller, rear dirt scoop
Jun 17, 2012
4,642
988
113
Austin, Texas
Check the engine oil level!

Hydraulic pump may have over filled the engine crankcase! May not be spinning fast enough?
 

North Idaho Wolfman

Moderator
Staff member
Lifetime Member

Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
28,567
5,035
113
Sandpoint, ID
I am almost more concerned with the sudden 'hard starting' at this point.
A quick check shows 12VDC to the glow plugs,
but need to continue with snow removal at this point.
I really wouldn't keep running it like that.
 

North Idaho Wolfman

Moderator
Staff member
Lifetime Member

Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
28,567
5,035
113
Sandpoint, ID
I am almost more concerned with the sudden 'hard starting' at this point.
A quick check shows 12VDC to the glow plugs,
but need to continue with snow removal at this point.
Is it cranking at normal speed?
Or is it dragging?
If it's just being hard to start and it's spinning at normal speed then it's a glow plug or fuel delivery issue.

If it's dragging then it could be a pump issue, or a engine issue, like a bearing seizing.
 

billrigsby

Active member

Equipment
L1500DT Too many implements, or is there such a thing?
Mar 17, 2015
999
134
43
Florissant CO USA 8213'
www.facebook.com
[


Apparently



Dan

Who knows, is cavitation or loss of prime a possibility?
Hydraulics is NOT my forte, it spins freely and the remaining
oil in the pump 'flows'.
I may partially submerge in oil and spin to see what happens.
Fortunately, I got most of what I needed the tractor for before this
happened.

The last big task, the back of the house, will be for tomorrow, by shovel!
20240316_155140.jpg
 

North Idaho Wolfman

Moderator
Staff member
Lifetime Member

Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
28,567
5,035
113
Sandpoint, ID
Who knows, is cavitation or loss of prime a possibility?
Hydraulics is NOT my forte, it spins freely and the remaining
oil in the pump 'flows'.
I may partially submerge in oil and spin to see what happens.
Fortunately, I got most of what I needed the tractor for before this
happened.

The last big task, the back of the house, will be for tomorrow, by shovel!
View attachment 124427
A clogged filter / screen can cause the pump to cavitate and overheat.
 
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Reactions: 1 users

TheOldHokie

Well-known member
Lifetime Member

Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Apr 6, 2021
6,851
3,297
113
Myersville, MD
windyridgefarm.us
Who knows, is cavitation or loss of prime a possibility?
Hydraulics is NOT my forte, it spins freely and the remaining
oil in the pump 'flows'.
I may partially submerge in oil and spin to see what happens.
Fortunately, I got most of what I needed the tractor for before this
happened.

The last big task, the back of the house, will be for tomorrow, by shovel!
View attachment 124427
The best way to test a pump is on the tractor. Measure pressure directly at the outlet. Here is a good video showing how starting at about 2:30. You do not need the flow meter just the gauge and needle valve.

Dan

 
Last edited:

billrigsby

Active member

Equipment
L1500DT Too many implements, or is there such a thing?
Mar 17, 2015
999
134
43
Florissant CO USA 8213'
www.facebook.com
Well, it seems very odd, but I suddenly have not one but two bad glow plugs?
Hydraulics stop working, engine stalls, hard to start=bad glow plugs?

I guess there is such a thing as coincidence-maybe?
 

North Idaho Wolfman

Moderator
Staff member
Lifetime Member

Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
28,567
5,035
113
Sandpoint, ID
Well, it seems very odd, but I suddenly have not one but two bad glow plugs?
Hydraulics stop working, engine stalls, hard to start=bad glow plugs?

I guess there is such a thing as coincidence-maybe?
Bad Luck?? :unsure: