Parker 221 Series, Owner'S Manual, Page: 49 / 56

Bulletin HY25-1135-M1/US
Owner’s Manual
Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
45
PTO Shifting Procedure 6 and 8-Bolt PTOs
General Power Take-Off Operation – Vehicle Stationary
Manual Transmission
1. A Power Take-Off (PTO) is, and should be, operated as an integral part of the main transmission.
2. Before shifting the PTO into or out of gear, disengage the clutch and wait for the transmission or
PTO gears to stop rotating.
3. Set parking brake.
4. Shift the transmission into NEUTRAL (N).
5. Shift PTO into gear.
6. Release the clutch pedal.
Automated Manual Transmission (AMT)
See transmission manufacture’s recommended procedure for proper PTO operation and shifting
sequence.
Mechanical Shift PTOs
1. The transmission clutch must be disengaged prior to shifting the PTO into gear.
Clutch-type PTOs
1. The PTO can be engaged without the transmission clutch being disengaged, but the engine
RPMs must be at or under 1000.
Important: Failure to follow proper shifting or operating sequences will result in premature PTO failure
with possible damage to other equipment.
WARNING:
Do not attempt to work on an installed Power Take-Off with the engine running.
Do not attempt to work on an installed Power Take-Off with the engine running. Make sure to block any
moving or raised device that may injure a person working on or under the truck. A lever or its linkage
may be accidentally moved causing movement of the device which could cause injury to a person near
the device.
This symbol warns of possible personal injury.