Bulletin HY25-1890-M1/US
Owner’s Manual
10-Bolt Extended Shaft PTOs
Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654  USA
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Due to the normal and sometime severe torsional vibrations that Power Take-Off units experience, operators 
should follow a set maintenance schedule for inspections. Failure to service loose bolts or Power Take-Off leaks 
could result in potential auxiliary Power Take-Off or transmission damage.
Periodic PTO MAINTENANCE is required by the owner/operator to ensure proper, safe and trouble free operation.
Daily:  Check all air, hydraulic and working mechanisms before operating PTO Perform maintenance  
  as required.
Monthly:  Inspect for possible leaks and tighten all air, hydraulic, and mounting hardware, if necessary. 
  Torque all bolts, nuts, etc. to Chelsea specifications. Ensure that splines are properly lubricated,  
  if applicable. Perform maintenance as required.
Warranty: Failure to comply entirely with the provisions set forth in the appropriate 
  Owner’s Manual will result in voiding of ALL Warranty consideration. 
Power Take-Off Maintenance