Just wanted to update it’s been several months now and machine is running great so it’s safe to say it was the BICS controller which is the black box if your sitting in the seat it would be to the right side behind you it tells you if the lap bar is down and several other it seems to be the brains of my machine lololo
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daytona701
Member
- Joined
- Nov 26, 2019
- Messages
- 16
Still locking up and stopping. Since last post changed the seat bar position sensor and that didn’t work. Called local Bobcat dealer that sold the machine and did some service work before. Service manager said brake switch on overhead console or rpm sensor at flywheel could be the cause. I unplugged brake switch but now I need to figure out how to test the rpm sensor. Any ideas? Thanks.
daytona701
Member
- Joined
- Nov 26, 2019
- Messages
- 16
Using 753 Bobcat yesterday parking brake kept engaging while operating. Unplugged brake switch and checked flywheel rpm sensor. Sensor face was in contact with flywheel. Removed sensor and bench grindered face to have air gap between sensor and flywheel. Reinstalled sensor but parking brake kept engaging. Does anyone know how to test rpm sensor? Also overhead beeps 3 times at key on.
reaperman
Well-known member
- Joined
- Dec 18, 2011
- Messages
- 569
I would start by disengaging the parking brake locking pin manually. Its located between your legs as you're sitting in the machine. Naturally you need to lift the cab and find the solenoid that controls the pins up and down motion. If the rpm sensor is failing you, the glow plug countdown timer will continue to countdown repeatedly.
