-
Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!
D8t fan blade not spinning
- Thread starter viktor
- Start date
Puffie40
Well-Known Member
Have you checked the resistance of the solenoid coil? How about the fuse going to that coil?
I'm presuming that solenoid controls the valve going to the fan. If you feel comfortable doing so, you can isolate both leads of the solenoid, and you could try feeding some voltage into it and see if the solenoid turns the hydraulic motor on. If energizing the solenoid turns your fan on, there is a electrical problem further upstream.
I'm presuming that solenoid controls the valve going to the fan. If you feel comfortable doing so, you can isolate both leads of the solenoid, and you could try feeding some voltage into it and see if the solenoid turns the hydraulic motor on. If energizing the solenoid turns your fan on, there is a electrical problem further upstream.
Nige
Senior Member
Do you have 2300kPa or 2300psi..? A big difference.
What Serial Number is the machine.?
kshansen
Senior Member
- Joined
- Mar 11, 2012
- Messages
- 11,162
- Location
- Central New York, USA
- Occupation
- Retired Mechanic in Stone Quarry
I knew there was a big difference but had to do the conversion:
2300 kPa equals 333.6 psi!
Nige
Senior Member
The reason I asked is that the specification is approximately 2300psi. I wanted to know if the OP simply made a typo with the units or if he actually measured somewhere in the region of 335psi.
I ch
the solenoid on the pump is new.I gave power and ground to the solenoid and nothing changed.I checked all fuses on the panel ther good.and no trouble codes
Nige
Senior Member
Here are the System Operation & Test&Adjust for the fan. Maybe they will be of some help.
Do you have the electrical schematic.?
When you replaced the fan pump did you also install a new compensator valve.?
Is it possible that the fan system itself is fine and that you are missing a signal somewhere that instructs the fan pump swash plate to move.?
Do you have the electrical schematic.?
When you replaced the fan pump did you also install a new compensator valve.?
Is it possible that the fan system itself is fine and that you are missing a signal somewhere that instructs the fan pump swash plate to move.?
I found the problem why fan didn't spinning at all.after I swapped part around from different d8.we had another d8 sitting in the yard and it didn't had the reversing valve body by the radiator so I deleted thus one put strait hose on and working good now
kshansen
Senior Member
- Joined
- Mar 11, 2012
- Messages
- 11,162
- Location
- Central New York, USA
- Occupation
- Retired Mechanic in Stone Quarry
So are you thinking the reversing valve was the problem? A quick look on SIS and it looks like that valve has some check valves and a solenoid valve in it so maybe one of those is stuck or broken.
Any chance of a part number off the valve? Might be able to find a instruction on rebuilding it or an updated valve for it. The one I see on SIS is # 162-2191