No Go with Glow Plugs

[greg_g]

However, if I replace the starter switch and the tractor is still a no-go, what could I do to check the clutch safety switch?

Like most switches on these tractors, they're crap too. But more often than not they fail cuz they get crushed by the clutch pedal. And probably at least 2/3 of those instances result in a dead short - which necessarily blows the 30A system fuse. From your description of the problem, your system fuse is ok.

One thing that can happen though, is that the switch breaks free somehow from its bracket - and never gets touched by the clutch pedal. OR - one of the wires comes off a connector post, and hasn't yet shorted against the frame (rare). Unless/until that switch is tripped, no juice gets from the keyswitch to the starter solenoid. Look under the left floorboard, almost touching the clutch arm. If the switch looks to be in place, undamaged, and no loose wires - disconnect it. Tape both wires together temporarily, and try the keyswitch again. If still nothing, then you're right back to a bad keyswitch. But if it cranks, get a new clutch interlock switch.

//greg//

 

[Bob Rooks]

Again, what's up with the Chinese and their lack of quality? I can see why their coal mines are always exploding or caving in. It's little wonder why they use/used Soviet-made equipment.

It's kinda like saying intrusion when you mean incursion, and ignition switch when you really mean key switch (there is no ignition circuit on diesel engines), etc. They like to save money where they can - just like everybody else.:thumbsup:

 

[Diamondpilot]

I agree with these guys but here is what I would do.

First, bypass the clutch safety switch.

If that does not work

Second, check the starter by using a screwdriver from the little lug to the big lug with it in Neutral and see if it starts.

If that does not work

You have a bad starter.

Chris

 

[jonyyuma]

Diamond a very good point, and the old hot wire method of starting most engines.. My Bota has a switch on the transfer hi-low switch too. The screw driver will show that the starter was intact. and waiting on the interlock . jy.

 

[thebudman]

UPDATE: I solved the starting problem! First, I installed a new starter switch, and turned the key. No go. So, I took the advice of bypassing the clutch/interlock safety switch by disconnecting the wires from the switch and connecting the two wires. Walla!!! She fired right up.

However, not all was fixed. In spite of a new switch, and checking all the fuses (which were fine), the glow plugs still won't heat. So, I'm back to square one (well, one and a half--- I have a new starter switch).

And--- is it really worth getting a new clutch/interlock saftey switch? I'm inclined to leave it bypassed. I suppose the risk would be an accidental start while in gear--- not by me, but maybe by a kid fooling around on the machine. Hiding the key would eliminate this however. I figure if the switch fails once, it's gonna do it again.

 

[greg_g]

I figure if the switch fails once, it's gonna do it again.

If there are kids around, you need the interlock. I've had 4 Chinese tractors dating back to the 90s. The switch failed on only one of the 4 in all those years. And the one that failed was the 1st one I owned. It was never positioned correctly when I bought the tractor, and ended up getting mashed by the pedal. Ever since then I repositioned the switch correcting when each subsequent tractor was new, then added it to the preventative maintenance list to be adjusted/tightened as required once a year.

//greg//

 

[Diamondpilot]

I agree to get the safety switch. Kids gravitate towards tractors and its there for a reason. $10 switch is not worth someones life.

Chris

 

[Bob Rooks]

UPDATE:And--- is it really worth getting a new clutch/interlock saftey switch? I'm inclined to leave it bypassed. I suppose the risk would be an accidental start while in gear--- not by me, but maybe by a kid fooling around on the machine. Hiding the key would eliminate this however.

Are you playing cards with Darwin? Why do you suppose newer domestic machines have so many lock-out safety features? If you go to Weekly Reports of Fatalities, Catastrophes, and Other Events you'll find out why. They are only trying to protect us from ourselves, and I appreciate that.
:thumbsup: