The JLG 40F Boom Lift Dilemma

[Troy anderson]

Trying to post picture but not working. Square panel with toggle switches, key, and stop safety Button. Two levers on right side for fwd/rev and boom extend/retract. Two levers on left for rotate and now I'm not next to it I can't remember what other stick does on left side. United has out riggers which I haven't seen on any other ones.

 

[OFF]

Trying to post picture but not working. Square panel with toggle switches, key, and stop safety Button. Two levers on right side for fwd/rev and boom extend/retract. Two levers on left for rotate and now I'm not next to it I can't remember what other stick does on left side. United has out riggers which I haven't seen on any other ones.

Most 60F's had extendable axles, not outriggers, but anything is possible. The proportional telescope (on a joy stick) is also an oddity in a 60F. Both of those things were standard on a 80F however.

Is your machine for sure a JLG product? You may need to get some more posts in before you are able to post pictures. I'm sure how that works. Having a key on the basket panel tells me your machine is one of the older models. Only time I've seen that is on machines with Moog controllers & valves. I'll check Moog schematics & the 80F schematics for diodes on the steer.

 

[Troy anderson]

This lift was originally painted more of a John deere Yellow but now it's painted similar to other older jlg lifts I have seen. I can see where there was a name plate rivited to the end of the mast but it has been removed. I have looked the lift over for a stamped VIN number but haven't been able to find one. It has jlg sticker and the number 60 on it as only markings I can find. Fairly certain it has a straight 4 Ford engine for power. Wiring is all original and as far as I can tell it hasn't been altered by anyone and aside from a couple of broken wires in engine compartment is in pretty good shape. I can make everything work by manually pushing on the pins in the center each spool valve. I brushed one of the diodes I was talking about with my hand and it fell apart and then the other one broke and I lost track of how they were placed

 

[OFF]

If those diodes fell apart when you touched them, they were already cooked. On the toggle switch, the wires that aren't yellow will be the signal wires to the steering. The yellow wires are common to all the controls (power wires). The diodes can only go in on the signal wires with the solid bar marking on the side away from the toggle switch. This will allow power to leave the switch, but not come back. No sign of a diode on the steer of any JLG schematic I've looked at. But it won't hurt anything to have them there. Keep trying to a picture up, I'd like to see this thing.

 

[Troy anderson]

I'll be back next to it in a couple hours and will get some detailed pictures and wire numbers. Thanks for your help

 

[excavator]

There was a 60F listed on E-Bay awhile back that had outriggers instead of extendable axles. As far as I know the 60F came with a Hercules/White 4 cylinder although I am currently working on one that has been converted to a Ford engine.

 

[Troy anderson]

 

[Troy anderson]

Lift has Rancine valves. Another problem came up tonight also. Only one drive wheel spins. Jacked up both drive wheels and only one spun. Other tire could be rolled until lever is placed in neutral so brake is releasing but hydrolic motor won't turn it. Any ideas on that? Enough of the diodes were left that I could tell which way they were supposed to go and you were right, power flows away from switch. Still can't figure out why they are used other then they are controlling one direction of steering and the outriggers power Selonoid with one wire in the cable going down mast. (Wire #1). wire #2 goes from steering switch to other steering direction seloniod

 

[OFF]

That's really different. Looks like it's been modified & updated a bit. Thanks for the pictures! I don't have a print for that one however. Other 60F's used the steer toggle to extend/retract the axles, but the 80F's with outriggers had a separate toggle in the basket to turn outrigger pressure on/off and then the jacks/beams themselves were controlled by manual valves on the base of the chassis. Those controllers aren't stock by the way, that's an upgrade.

 

[OFF]

Troy, send me a private message with your email address and I'll send you what 60F stuff I have.

 

[Troy anderson]

That is how thus lift is set up also with the manual valves on base.

 

[willie59]

That steering toggle switch, is it a single pole or double pole switch on the backside?

Could you post a pic of the backside of the steer switch?

What about the basket rotate and basket tilt toggle switches, are they set up the same way?

I'm like OFF, I've never seen JLG use diodes in this manner, I'm curious myself.

 

[Troy anderson]

I will have to look at those switches closer, they both work so haven't really researched them. Here is the only picture I have of steering switch. I'll get a better one this weekend sometime. The yellow wire goes to the line in for power. It comes from the outriggers/steering 3 position switch. The right wire leaves switch a basically goes straight to steering selinoid. The left red wire goes to a switch labeled outriggers power and it can't be seen in picture but wire #1, a black wire has the 2 diodes that hook to both the left and right posts. Following wire #1 it and the another wire coming from the outriggers power switch join together at a power distribution strip in the engine compartment then #1 goes into other steering selinoid and the other goes to the outriggers selinoid. I haven't been able to figure out why they joined these two systems together. Seems they could have both just came off switches and went to the selinoids they were meant to control.

 

[RSIGuy]

Hello All, I'm still looking for a drive motor for my 1976 40F. I can't seem to stop the leak and tried rebuild kit and now 5 high pressure seals. My tire is delaminating but no point on replacing it until I get it fixed. The other option is if someone knows if another year or model would bolt right on. That might be easier to find?

 

[excavator]

RSIGuy, does your drive motor have a case drain line on it? The early ones did not have the line so when the motor gets enough wear on it the shaft seal blows since there is no other place for the excess oil to go. There is a guy in our area who has the same problem and wants me to fix it, the problem is he doesn't want to pay me enough to make it worth while for me to do it.

 

[RSIGuy]

RSIGuy, does your drive motor have a case drain line on it? The early ones did not have the line so when the motor gets enough wear on it the shaft seal blows since there is no other place for the excess oil to go. There is a guy in our area who has the same problem and wants me to fix it, the problem is he doesn't want to pay me enough to make it worth while for me to do it.

No case drain (2 lines only on the right side drive motor, left has three), OFF suggested that last fall but haven't done it because I don't have a good hydraulic shop around. The only one around takes months to do anything and I'm not sure of their competence. I took it in once to try and have them put the kit in and a new high pressure seal but after 6 weeks I picked it up and did it myself. I don't think they ever saw one that age. Where abouts are you located? My son is in southern OR and I'm going to be out there in fall if not sooner.

 

[OFF]

When I retire, I think I'm going to travel north america repairing old JLG "F" series

Good way to see the country, right?? :drinkup

 

[Big Blue]

Hi Excavator, I am having trouble with my JLG 60G after a fellow working for me was welding and struck an arc on the basket. It is now dead in the water. It will start and run but no functions work. I would appreciate if you could forward me the manuals so I can troubleshoot it. Thanks

 

[kenmiller]

Does anyone have an idea where I can buy Racine joysticks for my 40F

 

[RSIGuy]

Does anyone have an idea where I can buy Racine joysticks for my 40F

I think I got the last one from OFF's private collection. Prior to that we had welded on to it and reshaped it, the springs are replaceable from Napa I believe.