Massey 3635 Lift Arms not working

SuperTwo

Member

Location

Leinster, Ireland

• Sep 8, 2021

• #1

As above arms not working at all. The two LEDs on the ELC do not light at all.
I've checked all the basics. All fuses are ok, the alternator is charging properly, I've disconnected the draft pins individually.
The toggle switch is working correctly. The autotronic function is working (turns off the diff lock when the toggle is on the up position.)
Any ideas on what to check next?

 

S

spitfire

Member

Location

wales

• Sep 8, 2021

• #2

SuperTwo said:

As above arms not working at all. The two LEDs on the ELC do not light at all.
I've checked all the basics. All fuses are ok, the alternator is charging properly, I've disconnected the draft pins individually.
The toggle switch is working correctly. The autotronic function is working (turns off the diff lock when the toggle is on the up position.)
Any ideas on what to check next?

Click to expand...

Try looking in the autotronic box underneath the rh door usually wires corroded or brocken

 

SuperTwo

Member

Location

Leinster, Ireland

• Sep 8, 2021

• #3

spitfire said:

Try looking in the autotronic box underneath the rh door usually wires corroded or brocken

Click to expand...

The two wires from the elc box to the Autotronic box are ok.

 

S

spitfire

Member

Location

wales

• Sep 8, 2021

• #4

SuperTwo said:

The two wires from the elc box to the Autotronic box are ok.

Click to expand...

usually one corroded off one of the plugs

 

SuperTwo

Member

Location

Leinster, Ireland

• Sep 8, 2021

• #5

spitfire said:

usually one corroded off one of the plugs

Click to expand...

When the diff lock is on and you flick the toggle switch to the up position the diff lock should automatically turn off. This is working correctly so it shows that the connections between the Autotronic and the elc are ok

 

masseybreaker

Member

Location

wakefield

• Sep 9, 2021

• #6

potentometer is damaged so the box doesnt know where it is so doesnt move the linkage

 

SuperTwo

Member

Location

Leinster, Ireland

• Sep 9, 2021

• #7

masseybreaker said:

potentometer is damaged so the box doesnt know where it is so doesnt move the linkage

Click to expand...

Where is the potentiometer located? Is it one of the dials on the control box?

 

Last edited: Sep 9, 2021

masseybreaker

Member

Location

wakefield

• Sep 9, 2021

• #8

on the right side of lift valve check the wiring to it

 

SuperTwo

Member

Location

Leinster, Ireland

• Sep 9, 2021

• #9

masseybreaker said:

on the right side of lift valve check the wiring to it.

Click to expand...

Thanks I will have a look at that later this evening.

 

SuperTwo

Member

Location

Leinster, Ireland

• Sep 9, 2021

• #10

No power going to the lift position sensor, the draught pins or the yellow wire on the toggle switch. Any other ideas? To me it looks like the computer on the under side of the box isnt sending any power out.

 

masseybreaker

Member

Location

wakefield

• Sep 10, 2021

• #11

you should have 3 12 volts feeds to the box first one constant second when the ignition is on third with the engine running find them to discount that

 

SuperTwo

Member

Location

Leinster, Ireland

• Sep 12, 2021

• #12

Only got back to this today, Ive got power in from the battery to pin 16, power to pin 15 with the ignition on and power to pin 17 when the alternator light goes out.

 

SuperTwo

Member

Location

Leinster, Ireland

• Sep 19, 2021

• #13

Ok so I've gone and tested my control box in a 3095 and everything works perfectly so I can rule out the box as faulty.
Using a multimeter on the ELC box connector I'm getting 13.5 to 14.2 volts depending on the revs so I assume that the alternator is ok too.
Is it most likely a draft pin or a position sensor that is causing the problem? Is there any way of testing them or is it just a case of replacing and hoping it works?

 

masseybreaker

Member

Location

wakefield

• Sep 19, 2021

• #14

disconnect the draft pins you dont need them for it to lift see what happens

 

SuperTwo

Member

Location

Leinster, Ireland

• Sep 19, 2021

• #15

Both disconnected still not working, no lights on the box at all either.

 

M

MikaK

New Member

• Sep 19, 2021

• #16

SuperTwo said:

No power going to the lift position sensor, the draught pins or the yellow wire on the toggle switch. Any other ideas? To me it looks like the computer on the under side of the box isnt sending any power out.

Click to expand...

 

SuperTwo

Member

Location

Leinster, Ireland

• Sep 19, 2021

• #17

Just tried the multi meter across the pins 17 and 14 again now I'm getting 14.6 volts. Would that cause a problem?

 

masseybreaker

Member

Location

wakefield

• Sep 19, 2021

• #18

unscrew the potentiometer and make sure the end will push in and springs back out and if you can just plug it in the 3095 and have the arms at the bottom put it in lift then push the end of it in and see if it lifts

 

SuperTwo

Member

Location

Leinster, Ireland

• Sep 19, 2021

• #19

masseybreaker said:

unscrew the potentiometer and make sure the end will push in and springs back out and if you can just plug it in the 3095 and have the arms at the bottom put it in lift then push the end of it in and see if it lifts

Click to expand...

It's springs in and out correctly I will try it in the 3095 and report back. Thank you for the help so far.

 

SuperTwo

Member

Location

Leinster, Ireland

• Sep 21, 2021

• #20

I've tried my position sensor in the 3095 and it's working ok. I pressed the plunger in and out and the arms reacted as they should. What should I do next check the wiring again or get the alternator tested?