User Manual
Page 15 of 39 DETROIT DDC-ENG-MAN-0001
CHELSEA BOTTOM PTO’S
See the table below for the maximum allowed torque for permanent and intermittent operation.
Series
Chelsea
823
880
680
489
Max Torque Continuous
525 lb-ft
350 lb-ft
263 lb-ft
175 lb-ft
Max Torque Intermittent
750 lb-ft
500 lb-ft
375 lb-ft
250 lb-ft
Weight
76 lbs
37 lbs
28 lbs
30 lbs
Shift Type
Dog clutch
Dog clutch
Dog clutch
Dog clutch
Table 3: Info table on released Chelsea Bottom PTO variants
CHELSEA MODEL NUMBER CHARTS
The Chelsea PTO model number provides a lot of information about the application where the PTO will be used. This
information includes:
PTO model number,
Mounting type / transmission for which the PTO is designed,
Gear ratio of the PTO as a percentage of engine speed
(percentages > 100% indicate a PTO speed faster than the engine speed, while
percentages < 100% indicate a PTO speed slower than the engine speed),
Input gear designator for which the PTO is designed,
Pressure lubrication status,
Shifter type,
Output designation (bolt pump mount, flange type, din spec).
Following are the model charts for the Chelsea 823 PTO for the various DT12 variants.