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Curtis B.
Curtis B., Technician
Category: Industrial Equipment
Satisfied Customers: 28909
Experience:  Technican turned service manager on multiple lines of equipment used in industry.
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Uno 33e snorkel lift...older model... hydraulic working

Customer Question

uno 33e snorkel lift...older model... hydraulic working fine...new batt's...no drive motor action. safe pedal down, red button up, 48 volt's to all 4 terminal's at elect motor...no spin... drive line off motor turn's by manual hand turn, seems smooth...cant find any info-part's on park brake control valve unit. does this dis-able elect motor? the manual's are worthless ...park it and get fixed... main suggestion they make. I cant even find a 4 terminal motor wiring picture anywhere...so if you can point me anywhere helpful...it sure would. thanks for your time.
JA: What is the complete model and serial number of your machine?
Customer: ah...gotta go check...should have done that dah...be back soon
JA: Anything else you want the industrial mechanic to know before I connect you?
Customer: no...but will take bout 15 min to get info thanks
Submitted: 2 months ago.
Category: Industrial Equipment
Customer: replied 2 months ago.
uno 33e serial####-##-####
Expert:  Curtis B. replied 2 months ago.

Hello! Let's see if we can can work together to get to the root of your question!

Expert:  Curtis B. replied 2 months ago.

4 terminal motor will have two armature posts, which have battery pack voltage at all ties, the field terminals get signal from the controller . Are the field coils getting voltage from controller? If it is, the drive motor has failed.

Customer: replied 2 months ago.
at a 4 terminals there is voltage... thats with the platform drive switch on, pedal down but not using joystick control. just sitting waiting for fwd/rev comand theres voltage
Expert:  Curtis B. replied 2 months ago.

Test motor as same as golf cart drive motor, see link below.

Expert:  Curtis B. replied 2 months ago.

I see question is still open, please use the 5 star rating system to close the question and get me credit! Thanks!