4720 Coolant Flush/change

   / 4720 Coolant Flush/change #1  

Red Horse

Veteran Member
Joined
Dec 12, 2010
Messages
1,156
Location
Bolton, MA
Tractor
Deere 655ZTrak, Deere 4720 Cab, 400 X LT 155
With 1700 hours on my 07, figure it is time for a flush and change. Coolant still looks good but I'm sure it owes me nothing.
any words of wisdom? Machine has always run in proper temp range-no issues-winter or summer.
 
   / 4720 Coolant Flush/change #2  
No real words of wisdom from me...I need to do the exact same thing soon.
 
   / 4720 Coolant Flush/change
  • Thread Starter
#3  
No real words of wisdom from me...I need to do the exact same thing soon.

Piece of cake-just take the loader off. Both drain petcocks in open. And you can speed up the draining process if you blow into the over flow tube that runs down the right side of the radiator. Doesn't take a lot but it does work.

I used Prestone radiator flush and after first flush put second flush in with just water. And like I said, I had 1715 hours. Book says 2 yrs or 2000 hrs-mine is an 07 so it was due but old coolant still looked good and the flush did not show any significant signs of rust.
 
   / 4720 Coolant Flush/change #4  
Piece of cake-just take the loader off. Both drain petcocks in open. And you can speed up the draining process if you blow into the over flow tube that runs down the right side of the radiator. Doesn't take a lot but it does work.

I used Prestone radiator flush and after first flush put second flush in with just water. And like I said, I had 1715 hours. Book says 2 yrs or 2000 hrs-mine is an 07 so it was due but old coolant still looked good and the flush did not show any significant signs of rust.

Did you have to drain the block too?
 
   / 4720 Coolant Flush/change
  • Thread Starter
#5  
Did you have to drain the block too?


Yes-l;ike I said-two petcocks one on bottom right side of radiator-facing rear, the block petcock is left front of block-very visible. And I had marked a five gallon pail for 6.7 quarts and I got just about that amount out with drip pans on right and one on left. But had I not blown on that overflow tube it would not have emptied the block as well as it did. Just make sure the radiator cap is on tight.
 

Tractor & Equipment Auctions

2010 Ford Edge SE SUV (A51694)
2010 Ford Edge SE...
John Deere 260E DOBBS Off-Road Dump Truck (A50322)
John Deere 260E...
2008 Ford F-250 4x4 Knapheide Service Truck with Liftgate (A51692)
2008 Ford F-250...
2010 Ford Edge SE SUV (A51694)
2010 Ford Edge SE...
2022 CATERPILLAR 299D3 SKID STEER (A51242)
2022 CATERPILLAR...
2022 MAXXD BD14 Heavy-Duty Dump Trailer with 14K GVWR and Tandem Axles (A52128)
2022 MAXXD BD14...
 
Top