3320 w/ H165 Loader Lowers When Curling

   / 3320 w/ H165 Loader Lowers When Curling #1  

Hoopman5000

New member
Joined
Apr 14, 2005
Messages
9
Hi all, I recently took delivery of a new 3320 with the H165 loader, with a set of forks. When I go to curl back, feathering the control valve, the load drops. If I shift the valve further, the load will then start to lift. Weight on the pallet was approx 600 lbs, Engine rpm was 1900.

I've been reading a lot on the 1 series with this exact problem but didn't see anything with the 3 series. The fix for the 1 series was a redesigned valve.

Has anyone here with a 3 series seen this issue?

Thanks!
 
Last edited:
   / 3320 w/ H165 Loader Lowers When Curling #2  
If the lift spool is in neutral, that should not happen.

Are you sure you are not pushing just a little on the lift spool.

Try cycling through the hyd about 5 times to purge any air that might be in the cyl.
 
   / 3320 w/ H165 Loader Lowers When Curling
  • Thread Starter
#3  
The load check holds the load while the spool is in neutral, but when I start to curl the load by feathering the valve, then the load starts to drop. If I shift the valve further to curl it will stop dropping and then begin to curl up
 
   / 3320 w/ H165 Loader Lowers When Curling #4  
Is the loader dropping or are the forks tipping down before starting to raise?
 
   / 3320 w/ H165 Loader Lowers When Curling
  • Thread Starter
#5  
The forks are tipping down, then I shift the curl valve more and it begins to curl up
 
   / 3320 w/ H165 Loader Lowers When Curling #6  
I noticed on my new NH loader when I curl down to back drag if I'm not real careful when I raise or lower the bucket will uncurl and almost flop up. I blame it on operated error. There must not be much play on new joysticks. My old ones can move in a circle and the bucket doesn't move.
 
   / 3320 w/ H165 Loader Lowers When Curling #7  
Remove the load check valve and inspect and clean.

Check poppet, spring and seat.
 
   / 3320 w/ H165 Loader Lowers When Curling #8  
Make certain your hoses are connected correctly at the quick disconnects. The FEL valve has a float on the raise/lower and a quick dump on the bucket. Perhaps you have something plugged up wrong.
 

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