BOMBARDIER 1996 Ski-doo MX Z440 Handbook page 27

300 Ibf
SPRING RATE = 100 Ibf / in
10 in FREE LENGTH
, AOIFIPS
Now let's see what happens if we use a long, soft spring and a short, stiff spring. We will use a
100 lb/ rate spring with a free length of 10 inches.
in
with a free length of 7 inches. The installed length will be 7 inches as in the previous example, thus
the 100 lb/ in, 10 inch spring will react the same with 300 pounds of preload. The 300 lb/in sPrin9
will not have any preload as its installed length is the same as the free length.
So if we apply 150 pounds of force, the Ist spring will not move, while the 2nd spring will compress
0.5 inches (see following illustration).
400
400 Ibf, force
100 Ibf, available for
compression (1=)
Section 03 CHASSIS PREPARATION
400
400 Ibf, force
300 Ibf, available for
compression (3")
SPRING RATE = 100 Ibf / in
8 in FREE LENGTH
Our
2nd spring will be a 300 lb/in rate sPrin9
03-11