Search found 18 matches

by Snookdoc
Fri Mar 01, 2019 3:27 pm
Forum: Late model JD crawler technical support
Topic: 1977 JD 450c Loader has no power in reverse
Replies: 46
Views: 37030

Re: 1977 JD 450c Loader has no power in reverse

When I was trying to get the pressure to rise 5 psi when I pushed the clutch in 1/2”- 3/4” I turned the lock but with a 13mm socket and lost all of the free play in the clutch the next time I adjusted the lock was with a 1/2” socket and I was just moving the lock nut. A few days later l realized I w...
by Snookdoc
Fri Feb 22, 2019 6:53 am
Forum: Late model JD crawler technical support
Topic: 1977 JD 450c Loader has no power in reverse
Replies: 46
Views: 37030

Re: 1977 JD 450c Loader has no power in reverse

Hi i got the pressure to 160 but lost the clutch pedal trying to adjust it . it will go down about3/4" but wont come all the way back up . Help
by Snookdoc
Wed Dec 19, 2018 7:51 pm
Forum: Late model JD crawler technical support
Topic: 1977 JD 450c Loader has no power in reverse
Replies: 46
Views: 37030

Re: 1977 JD 450c Loader has no power in reverse

Thank you Jim will keep you posted . Lots of worn parts.
by Snookdoc
Wed Dec 19, 2018 12:16 pm
Forum: Late model JD crawler technical support
Topic: 1977 JD 450c Loader has no power in reverse
Replies: 46
Views: 37030

Re: 1977 JD 450c Loader has no power in reverse

Hi Jim I checked the brake and steering pedals height they are suppose to have 5.12" of travel they are all different lengths. Will try and get it back to where they were suppose to be. might take me awhile. Thanks again for all of you help mike
by Snookdoc
Wed Dec 19, 2018 7:27 am
Forum: Late model JD crawler technical support
Topic: 1977 JD 450c Loader has no power in reverse
Replies: 46
Views: 37030

Re: 1977 JD 450c Loader has no power in reverse

also when I push the clutch in the pressure didn't rise 5psi,it dropped pressure.
by Snookdoc
Wed Dec 19, 2018 7:01 am
Forum: Late model JD crawler technical support
Topic: 1977 JD 450c Loader has no power in reverse
Replies: 46
Views: 37030

Re: 1977 JD 450c Loader has no power in reverse

There is slot of wear on the brake pedal i think the bushing is worn. I found the section on steering clutches an brakes and it gives the adjustments.i will see if i can get it all back to spec.i turned the locking nut on the clutch and the pressure went up a couple of pounds and just stayed there a...
by Snookdoc
Tue Dec 18, 2018 7:42 pm
Forum: Late model JD crawler technical support
Topic: 1977 JD 450c Loader has no power in reverse
Replies: 46
Views: 37030

Re: 1977 JD 450c Loader has no power in reverse

im going to get the John Deere mechanic to see what he thinks. Thanks for all of your input. Mike
by Snookdoc
Tue Dec 18, 2018 4:59 pm
Forum: Late model JD crawler technical support
Topic: 1977 JD 450c Loader has no power in reverse
Replies: 46
Views: 37030

Re: 1977 JD 450c Loader has no power in reverse

I couldn't get it to 2.35'" of free play where the yoke connects to the rod coming off of the clutch rod. I could get it to around 3 1/4. Pressure was around 120 in neutral. It would drop down to around 40psi when I shifted Into high lo and reverse. If I pushed the clutch in a tad and shifted betwee...
by Snookdoc
Tue Dec 18, 2018 7:43 am
Forum: Late model JD crawler technical support
Topic: 1977 JD 450c Loader has no power in reverse
Replies: 46
Views: 37030

Re: 1977 JD 450c Loader has no power in reverse

After I do the adjustment, if I don't have 160 psi is that when I need to add shims? thanks again mike
by Snookdoc
Tue Dec 18, 2018 7:27 am
Forum: Late model JD crawler technical support
Topic: 1977 JD 450c Loader has no power in reverse
Replies: 46
Views: 37030

Re: 1977 JD 450c Loader has no power in reverse

The manual shows it as a H-L-R Transmission Adiustment Fig.3 - Adjusting Clutch Pedal Free Travel and Linkage for Clutch Valve a Free travel 1 Yoke 2 Clutch fork 3 Self-locking nut NOTE: Whenever the clutch and H-L-R clutch valve linkage have been removed, or clutch pedal free travel becomes /ess th...
by Snookdoc
Mon Dec 17, 2018 8:41 pm
Forum: Late model JD crawler technical support
Topic: 1977 JD 450c Loader has no power in reverse
Replies: 46
Views: 37030

Re: 1977 JD 450c Loader has no power in reverse

4 pedals left, clutch , brake, and right.
by Snookdoc
Mon Dec 17, 2018 8:01 pm
Forum: Late model JD crawler technical support
Topic: 1977 JD 450c Loader has no power in reverse
Replies: 46
Views: 37030

Re: 1977 JD 450c Loader has no power in reverse

Hi Jim, I am in east Tennessee, The loader is a 1981 455 with foot pedals. The manual I have is TM4392. It says to unhook clutch fork from lever and loosen hex nut. adjust free travel to specified 60mm (2.35" )and tighten hex nut. NOTE before adjusting clutch pedal make sure all pedals are in alignm...
by Snookdoc
Sun Dec 16, 2018 1:14 pm
Forum: Late model JD crawler technical support
Topic: 1977 JD 450c Loader has no power in reverse
Replies: 46
Views: 37030

Re: 1977 JD 450c Loader has no power in reverse

To psprague in my original post I put in 450c its really a 1981 455 crawler with a operators cab, made in Germany. I was told it uses the same parts as a 450c. In the 455 crawler loader manual it says to adjust free play to 60mm (2.35 inches.)so that is where I adjusted it too. I locked the brake pe...