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Curtis B.
Curtis B., Technician
Category: Construction and Road Equipment
Satisfied Customers: 989
Experience:  Technican turned service manager with multiple lines of equipment and rental units.
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Just rebuilt Xmy swing motor/ drive gear and bearings on a

Customer Question

Just rebuilt Xmy swing motor/ drive gear and bearings on a bobcat 430 ex. Also drained hydraulic system. Put together and my left swing is very weak. Won't swing left even slightly uphill. Took it apart again and found nothing wrong. Put back in and still weak left. If it helps right seems almost TOO quick.
Submitted: 8 months ago.
Category: Construction and Road Equipment
Expert:  Bradley Martin replied 8 months ago.

Was it doing this before swing motor was rebuilt?

Customer: replied 8 months ago.
No. Was leaking out bottom do to internal gear damage
Customer: replied 8 months ago.
I switched location of spool valves and check valves.. made no lifetime. Still weak left swing
Customer: replied 8 months ago.
Made no difference. Don't know why "lifetime" sent
Customer: replied 8 months ago.
Went thru swing motor again because I hear fluid loss when trying left swing. Do u have flow chart, test port I'd, anything to direct me???
Expert:  Bradley Martin replied 8 months ago.

No I do not have test port ID let me opt out and see if someone else can help sorry it took me so long to get back with you

Expert:  Bradley Martin replied 8 months ago.

does your swing motor have eaton on it?

Expert:  Bradley Martin replied 8 months ago.

does it look like this?

Customer: replied 8 months ago.
Figured it out. One Teflon seal upside down. And pump gears in swing motor need to be timed. Thanks anyhow. I can answer any questions someone has on a 430 bobcat. Been thru e dry inch now...
Expert:  Bradley Martin replied 8 months ago.

Wow would not have guessed that one glad you figured it out. Let me know if you need any help with anything else

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