Warner Electric ZRC Clutch_ARC Top Load - Manual (Page 3)

Warner Electric • 800-825-9050 P-2018 • ZRC/ARC 3
Setting Top Load Spring Force
1. Determine initial spring setting from spring force
chart below.
2. Compress the spring with the locking ring just
enough to allow the adjustment ring into its correct
setting.
3. Move the adjustment ring to the desired setting.
Bring the locking ring down and jam the rings
together with a spanner wrench.
4. For optimum results check download force with a
force scale.
5. Set headset on the scale and manually compress
the spring downward 5mm. Take the force reading
at this position. The lines on the spring cover
are .100” (2.5mm) apart, so two lines equal the
recommended .200” (5mm) compression.
Top Load Settings
Top Load Spring Force
Setting Chart
Spring Force at 0.200” (5mm) Deflection
Spring
Setting
Standard
Spring
YTP1-0010
Plain
Low
Spring
YTP1-0003
Grey
High
Spring
YTP1-0008
Black
lb Kg lb Kg lb Kg
1.0 34 15 24 11 50 23
1.5 39 18 27 12 58 26
2.0 44 20 31 14 66 30
2.5 49 22 34 15 73 33
Max 54 24 38 17 80 37
Spring Force at 0.100” (2.5mm) Deflection
Spring
Setting
Standard
Spring
YTP1-0010
Plain
Low
Spring
YTP1-0003
Grey
High
Spring
YTP1-0008
Black
lb Kg lb Kg lb Kg
1.0 29 13 20 9 43 20
1.5 34 15 24 11 50 23
2.0 39 18 27 12 58 26
2.5 44 20 31 14 66 30
Max 49 22 34 15 73 33
NOTE: The charts above provide actual spring
loads without any added load due to the
weight of the headset. These spring loads are
valid for any headset. Not all headsets have
the full range of settings; some headsets do
not have a ‘3.0’ setting, other headsets do not
have ‘1.0’ or ‘1.5’ settings. The spring loads
are calculated at the given deflection as listed
in the chart.
Figure 6