Can you tell me the tracking weight of a bush mttt1?

Track Rods , Track Bushes , or Wheels need Balacning , various things it could be.

Loss Of Oil Pressure is usually the Cause.Looks like its time for a new Engine, But You're Problem was Probably caused By the Wrong oil and Or No oil Pressure.I've had People tell Me they Used a Heaver Oil for summer time and A lighter Weight oil for winter, This Used to be an ok Practice in the Past, with Solid Steel Blocks But was NEVER Recommended Ever, Since the Change in oil weights eventually Breaks down the he Bearings from the differences in Viscosity in oils,But With the Newer and lighter Aluminum Blocks, Every thing Affects the Performance of the integral Parts IE:Bushings, Bearings, Seats ,Lock tabs, Shear pins/Keys .
So Now You need a new Engine Sorry

Do you mean the weight of the machine ?
Or weight capacity of the user?

most likely cause is a ball joint first suspect is the track rod ends ,possibly even the inner ones on the steering rack ,but it could be a lower track control arm joint or bush as well ,doesnt this vehicle have a yearly mechanical inspection ?? and six months in the case of a commercial vehicle like this one

The first thing that pops into my head is a bad ball joint or a broken sway bar link, bad sway bar bushing, or a missing bushing in the link itself.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

If the bushings are worn, then it is best to replace them. If changing the other parts did not solve the problem, then have the bushings changed.

You may have to call spirit direct to to find out if they even have these bushing. Call them @ 1-800-258-8511
One Other place I found a plastic bushing is at www.fit-senior.com
| Fitness Equipment Replacement Spare Parts | Weight Stack, Weight Stack Keys and Weight Stack Plates | Weight Stack Plates & Bushings

The manual for the SL1200 (same machine but silver, acccording to an online reviewer) says:

"An auxiliary weight may be necessary between the
cartridge and headshell, mostly in a DJ application.
Many new cartridges and new turntables come with
these weights. If you cannot achieve the recommended
tracking force, then this weight is what will be needed."

Grab hold off the prop-shaft to see if it is quite solid, it could be a worn UJ. Check the balance weight on the same shaft to ensure it hasn't slipped forward or backwards on the shaft.
Then get wheels checked, they could need re-balancing.

http://ortofon.de/ should give you the weight. It should also give you the range of tracking force. To get the right weight you can use a stylus balance. The electronic ones are expensive but good. The mechanical ones are not great but better than nothing. I set my turntable up with an Ortofon-branded mechanical balance for weight, and a test record for tracking force.