Parker 252 Series, Owner'S Manual

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Bulletin HY25-1806-M1/US
Owner’s Manual
252 Series
Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
23
Dodge/Sterling/Ram Installation
Overview (MY2013 & Later)
PTO Operation
The 3500/4500/5500 RAM Chassis Cab vehicle, when equipped with either the automatic AISIN 6-speed or
manual G-56 6-speed transmissions (manual transmission option MY2013 thru MY2018 only), will allow for an
aftermarket upfit with a transmission driven PTO (Power Take-Off). The customer will have the ability to operate
the PTO in either a “stationary” or “mobile” mode. Under normal operation the vehicle will go to a 900 RPM when
PTO is engaged. By utilizing the cruise switches the idle speed can then be adjusted to between 900 and 2000
RPMs.
Stationary Mode
This feature interacts with the transmission to utilize an auxiliary PTO to drive equipment. Activated by a switch
inside the cab, this feature operates only when the vehicle is stationary.
Once active, the engine speed may be increased by holding the RES ACCEL button on the steering wheel or
decreased by holding the COAST button.
This is the factory programmed setting. If you need a single set speed, you will now be able to program it (and
disable the cruise switches) via the Electronic Vehicle Information Center (EVIC) screen in the center of the
cluster.
Stationary PTO is available only when the vehicle is stationary. When the truck is equipped with an automatic
transmission, it must be in Park and the service brake must be released and functional. When the truck is
equipped with a manual transmission (not available ), the parking brake must be set and the service
brake must be released and functional.
To operate the PTO in this mode the vehicle must meet the following conditions:
• Be in park position (vehicles equipped with automatic transmission)
• PTO switch has been activated
• Parking brake applied (vehicles equipped with manual transmission, MY2013 thru MY2018)
• Clutch not depressed (clutch interlock switch, vehicles equipped with manual transmission, MY2013
thru MY2018)
• Vehicle must be running
• No transmission, engine, accelerator, brake or clutch switch faults present
• PTO must be correctly installed using the vehicle provided circuits
To operate the PTO via a remote switch the customer must make sure the above conditions are met. It is vital
for proper operation that the PTO and remote have been installed correctly paying special attention to ensure
the vehicle provided wiring has been connected properly. This is the responsibility of the installer of the PTO and
switches/remote system. It is the responsibility of the PTO manufacturer to ensure that their electrical (switches
and remote) system is compatible with the vehicle’s electrical architecture and software functionality.