Yanmar SC2450

[coldbum]

Hello everyone. New to the message board. What a great resource. Thank you for allowing me to join in. As with most ppl I am here because I have a problem.

The parking brake safety switch keeps going bad. My parents had it replaced 3 years ago. I have had to dry, clean it and lube it several times.

Yesterday it started acting up again I have it parked in the garage and of course the bucket is down and it is tight against the wall (on the brake pedal side).

Questions:

1) Is there anyway to raise the bucket and move pull the tractor away from the wall without it running?

2) How the heck do you get in there to change out the switch.

3) Is there anyway to bypass the switch so I can at least get it on a trailer to take it to the dealership?

4) Is there anyway to bypass it permanently?

Thanks for reading and tolerating my lack of knowledge and mechanical skills.

P.S. I would normally just call the dealership and come out but I need my tractor asap to level some ground for a wheelchair ramp for my dad (disabled veteran home on hospice care).

 

[msb1766]

Here is the Technical Manual, hope it helps,
Sc245 Sc Series Sub-Compact Tractor - Technical Manual

CHAPTER 5. POWERTRAIN-HYDROSTATIC
3. Theory of Operation
3-2 Releasing the Hydraulic Pressure in the Transaxle
3-2 Releasing the Hydraulic Pressure in the Transaxle
*When the engine is not running!!
On the center plate, there is tow relief valve and check valve. On top of the tow relief valve and check valve, there
are "By-pass push pins".
When those pins are pushed, the oil will be escaped to the transmission case through the charge circuit.
Those two pins are pushed by Hydro Static Transmission (HST) pressure plate.
3-3 Gear Pump
There are two kinds of pump.
One that is attached with the transaxle is trochoid pump as the charge pump for Hydro Static Transmission (HST)
unit.
The other is the gear pump which supplies the hydraulic pressured oil for the power steering, lift valve and loader valve.