Hydraulics quit working

[orygunparson-HT]

I have a Yanmar 155D. The hydraulics quit working and I noticed hydraulic fluid pouring out from where it appears to the throttle/governor(?). I don't have a manual that clearly shows where the problem could be. This is a tractor that I inherited from my dad's estate, so I'm very new at this. Thanks for any help you may provide.

 

[bmaverick]

I have a Yanmar 155D. The hydraulics quit working and I noticed hydraulic fluid pouring out from where it appears to the throttle/governor(?). I don't have a manual that clearly shows where the problem could be. This is a tractor that I inherited from my dad's estate, so I'm very new at this. Thanks for any help you may provide.

Jump onto the YTOG for the free manuals.

YANMAR YM135 YM155 PARTS MANUAL.pdf

YANMAR YM135 YM155 ELECTRICAL ALT-1.pdf

YANMAR YM135 YM155 SERVICE MANUAL AOD1048.pdf

YANMAR YM135 YM155 YM240 YM330 ELECTRICAL MANUAL.pdf

YANMAR SHOP MANUAL YM-1.pdf

 

[orygunparson-HT]

Thanks for your reply. Do either of these manuals have a section that addresses hydraulics specifically - such as a troubleshooter?
I believe I need the basics on the Yanmar 155D hydraulic system.
Thanks again!

 

[bmaverick]

Thanks for your reply. Do either of these manuals have a section that addresses hydraulics specifically - such as a troubleshooter?
I believe I need the basics on the Yanmar 155D hydraulic system.
Thanks again!

Definitely the service manual and the shop manual both listed.

The service manual is Yanmar.

The shop manual is the Chilton/Hayes repair manual.

With both, it covers everything you would need.

 

[orygunparson-HT]

Thank you, bmaverick - I appreciate the help!

 

[orygunparson-HT]

Definitely the service manual and the shop manual both listed.

The service manual is Yanmar.

The shop manual is the Chilton/Hayes repair manual.

With both, it covers everything you would need.

Sorry to bother you but I'm just now having scheduled some time to work on my tractor. You said to "jump onto the YTOG for the free manuals. What is the YTOG? I've been searching this website but have found nothing. Browsing the web hasn't come up with any manuals. Feeling dumb. Thanks for your help.

 

[Jim.ME]

Sorry to bother you but I'm just now having scheduled some time to work on my tractor. You said to "jump onto the YTOG for the free manuals. What is the YTOG? I've been searching this website but have found nothing. Browsing the web hasn't come up with any manuals. Feeling dumb. Thanks for your help.

Try this Link.

Yanmar Tractors Owners Group

 

[winston-HT]

Maybe a picture where the fluid was coming out? Sounds like your pump seal has blown. Only way hydraulic fluid can get into the crankcase is thru that seal. Here is a picture showing your pump. Nor parts breakdown on the pump itself. #33 is your pump.

 

[bmaverick]

Sorry to bother you but I'm just now having scheduled some time to work on my tractor. You said to "jump onto the YTOG for the free manuals. What is the YTOG? I've been searching this website but have found nothing. Browsing the web hasn't come up with any manuals. Feeling dumb. Thanks for your help.

The YTOG is the link shown in my signature.
Copy and paste into your browse address line and hit enter.