New Holland T4.75F Operator's Manual page 112

540/1000 RPM Power Take-Off speed
Speed selection by changing output shaft
Passing from one speed to the other takes place
automatically by simply replacing the splined output
shaft (2);
• the speed of 540 RPM is obtained by fitting the 1 3/8 "
output shaft with 6 splines;
• the speed of 1000 RPM is obtained by fitting the 1 3/8 "
output shaft with 21 splines.
NOTE: When using the power take-off, and especially
when changing speeds, always make sure that the
tractor is fitted with the correct shaft for the speed se-
lected. When using any implement requiring a speed of
540 RPM, never select 1000
Selected power take-off: 540 RPM
540 RPM with engine running at 2196 RPM
Selected power take-off: 1000 RPM
1000 RPM with engine running at 2260 RPM
6 - WORKING OPERATIONS
RPM, and vice versa.
565 RPM with engine running at 2300 RPM
1017 RPM with engine running at 2300 RPM
6-14
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