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I have a Hyster 60 with the monotrol it will not move

Customer Question
I have a Hyster...

I have a Hyster 60 with the monotrol it will not move forward or back

Mechanic's Assistant: What is the complete model and serial number of your machine?

I do not know the serial #

Mechanic's Assistant: Are you fixing this yourself? What have you tried so far?

I have made sure the brake pedal is not out of adjustment and have made sure there is power to the forward and backward solenoids

Mechanic's Assistant: Anything else you want the industrial mechanic to know before I connect you?

Would like to know more about the valve that releases the oil pressure when you step on the brakes

Submitted: 6 months ago.Category: Industrial Equipment
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Answered in 52 minutes by:
11/9/2017
Mechanic: Curtis B., Technician replied 6 months ago
Curtis B.
Curtis B., Technician
Category: Industrial Equipment
Satisfied Customers: 30,482
Experience: Technican turned service manager on multiple lines of equipment used in industry.
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Hello! Let's see if we can can work together to get to the root of your question!

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Customer reply replied 6 months ago
The forward and backward solenoids both are working from the monocontrol pedal. Machine appears to be by passing oil pressure instead of driving
Mechanic: Curtis B., Technician replied 6 months ago

Inching valve kicks the transmission into neutral when the brake on left is applied, or if it has single brake. It can be a mechanical valve with a brake line to the inching control , or can be a solenoid activated valve. But if it sticks, you loose f/r. It is a spring loaded valve, so valve can stuck, or spring can break.

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Customer reply replied 6 months ago
It has just a single brake pedal.
Customer reply replied 6 months ago
It is a mechanical valve with a linkage coming from the brake pedal
Mechanic: Curtis B., Technician replied 6 months ago

That makes it easy to check, just remove the linkage and then the valve , to check the inner parts.

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Customer reply replied 6 months ago
Is the valve separate from the rod sticking out of the valve body?
Mechanic: Curtis B., Technician replied 6 months ago

Yes,

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Customer reply replied 6 months ago
I will check that tomorrow and get back to you. Thank you for now
Mechanic: Curtis B., Technician replied 6 months ago

OK> Thanks,

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Customer reply replied 6 months ago
I have finally found the serial# ***** this machine and it is D177B10348R I believe the model to be a Hyster H60XM..
Customer reply replied 6 months ago
I have taken the linkage off from what I would call the inch valve.. this moves in and out of the transmission freely. I also pull the steel oil line off right beside this and took that valve out and it moves freely with no issues. I did notice it doesn't make and oil pressure from this port when unhooked and the machine is running.. hopefully this makes sense thanks, Brandon
Mechanic: Curtis B., Technician replied 6 months ago

The linkage from the brake to the transmission control valve, did you remove the valve under it in the transmission? Do you have a pressure gage to check transmission pressure> Needs to be about 200 psi in neutral and when shifted to F/R.

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Customer reply replied 6 months ago
I do not have a gauge unfortunately
Mechanic: Curtis B., Technician replied 6 months ago

Most auto supplys rent them or you can make a test gage . But the inching control is all that would affect both forward and reverse.

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Customer reply replied 6 months ago
I recently lifted the machine off the ground with my telehandler and the tires spin backwards only no matter which way you run the monotrol. I set it back on the ground and it almost moves backwards giving it throttle but it does not end up moving.. never does it try and go forward
Mechanic: Curtis B., Technician replied 6 months ago

Is this monotrol the hydraulic version , with oil lines to it and to the transmission control or is it electric switches and solenoids on the transmission.

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Curtis B.
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Category: Industrial Equipment
Satisfied Customers: 30,482
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Experience: Technican turned service manager on multiple lines of equipment used in industry.

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