Another Bobcat control valve seal project. This one 763C series, very much like the 753C. I got to thinking, the big problem working on these is access to front of loader control valve seals because the loader arm manual descent valve is in the way as I stated in previous posts about 753C. I can remove a few lines and fittings and perform the repairs, but then I'm not the size of the Incredible Hulk either. I realize there are likely many folks out there that still cannot get their big mits in there and work on the front of valve spools, so here's an alternative method for working on the front side of the control valve. It's a little bit of work, but not bad really. Beside, that panel was getting a bit rusty so I wanted to add a little paint to protect it.
Just to refresh things, the first thing you want to do when replacing control valve seals on any Bobcat skid is remove the attachment, bucket or whatever is attached to coupler, then raise the loader arms fully and install the boom safety prop. Lower boom gently until it rests on prop. Then tilt the coupler all the way forward. Shut down manchine. Then power up ignition but don't start engine. Drop seat bar if it's a C or F series, push green enable button if it's a G series, then operate foot pedals to release residual pressure on loader arm and bucket tilt circuits.
Here's the control valve. Very tight area to get to front of valve spools.
You ain't gonna cram your hand in there, work with fingertips or long nose pliers at best.
An alternative method for repair is to remove the front drive lever panel, or whatever Bobcat
calls it, with the drive levers attached to it.
Disconnect the shock absorber dampeners from the front panel and flip them back out of the way.
Then disconnect drive links from cross shaft. The bolts go through threaded holes in drive links, the nut is a jam nut.
