CAT Scale Axle Weights

[wsmcycle]

I have stated that my tag is not carrying enough weight. Let me explain. the rear end of the bus bounces as on a light washboard when you hit a bump at 75. I don't travel at 75 but going down hill you hate to apply the brakes because of the coming up hill. Here are the axle weights for my bus.
steer 13,180
drive 16,080
tag 7,700
total 36,960

What are your's?

[450Donn]

Bouncing is usually a sign of bad shocks. When, or how old are the shocks? When were they last inspected for leaks?

[wsmcycle]

All of the shock have just been replaced.
I took the tag tires off and chained up the axles. Road tested and NO bounce. I then took the tag wheels and put them on the outer drive axles again with the tags chained up and still NO bounce. It is not the tires. next i put the outer drivers on the tags and now I have bounce. That is why i thought the tag is inducing the bounce because of too little load on it.
What are your weights?

[CoCoDave]

Our axle weights are as follows:

Actual_______________GAWR

Steer Axle 14,240 _____17,500

Drive Axle 17,700 ______20,000

Tag Axle 8,420 _________11,000

FWIW

[wsmcycle]

Thanks

[gpounder]

I used to have a tag on a charter bus back in the 80s but not today.
But here is some info from what I have read about them.

They do two things, first carry weight to keep the rear from being over weight, second they can to a degree cause an adjustment to the front axle because as the carry more weight they push down on the front, the pivot point moves backwards.

Get your specs on leveling the coach, If you hit the marks then you should hit the sweet spot designed by the manufacture.

There is also a chance that the suspension is loose causing the bounce. Worn out bushing will do that.

[caryt]

Steer 14180lbs



Drive axle 18960lbs


Tag 9220




Total 43360 with full fuel and not much else.

[gsander1]

Front 14,280
Rear Drive 18,300
Tag 8,340