Morris CX 8105, Operator'S Manual, Page: 55 / 182

Operation
CX 8105 - Ground Drive December 2016 5-21
Rate Charts - Continued
Extra Low Rates
Although the charts show a minimum rate of 35 lbs.
per acre for fertilizer and 20 lbs. per acre for seed,
sometimes this is not low enough, especially when
product is being metered from both tanks.
Rates under the values mentioned can be achieved by
replacing the standard 25 tooth meter shaft sprocket
on the front of the transmission with either a 35 or 40
tooth sprocket.
The rates obtained when using the 35 and 40 tooth
sprocket are shown on the rate charts beside the
respective size sprocket.
When both tanks are being used to meter the same
product then the 25 tooth sprocket on each transmission
must be changed. Now both transmissions will have the
same size
metershaft sprocket.
The same metering chain can be used with these larger
sprockets up to a certain size of quick change sprocket.
To determine a rate from the chart:
• Go to the desired rate along the line next to the size
of metershaft sprocket used.
• Go straight up from that point to where that line is
intersected by the graph line of the particular product
being metered.
• At this intersection go straight across to the vertical
line of the graph. This will give the sprocket size
required to give the particular rate chosen.
• Change the quick change sprocket and repeat the
rate check to confirm the seed rate.
• Repeat the above procedure for the other tanks.
Extra High Rates
In areas where higher rates of product are required the
metershaft sprocket is changed from the standard 25
tooth to a 15 tooth.
Use the method described under EXTRA LOW RATES
to determine the required metering rate.
e t a R
tf a h s r e t e M
t e k c o r p S
e z i S
m u m i x a M
f o e z i S
k c i u Q
e g n a h C
t e k c o r p S
m u m i n i M
f o e z i S
k c i u Q
e g n a h C
t e k c o r p S
Standard 25 Tooth 45 Tooth 12 Tooth
Low Rate
(1)
35 Tooth 33 Tooth 12 Tooth
Low Rate
(2)
40 Tooth 26 Tooth 12 Tooth
High Rate 15 Tooth 45 Tooth 18 Tooth
IDLER
RATE
CHANGE
SPROCKET
METER SHAFT
SPROCKET