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
4
General Information
This symbol warns of possible personal injury.
Direct Mount Pump Support Requirements (Universal)
Chelsea requires the use of pump supports (Support Brackets) in all applications to ensure the Maximum
Bending Moment (MBM) of the PTO / Pump assembly is not exceeded. Exceeding the MBM can result in
damage to PTO, transmission, driven equipment, and / or personnel. It is the responsibility of the installer
to ensure that adequate support is implemented. All applications are unique and it is important to consider
all parameters in designing a proper support bracket.
PTO warranty will be void if a pump bracket is not used when one of the following conditions are present:
1. The combined weight of pump, fittings and hose exceed 40 pounds [18.14 kg].
2. The combined length of the PTO and pump is 18 inches [45.72 cm] or more from the PTO
centerline to the end of the pump.
ALSO: Remember to pack the female PTO shaft with grease before installing the pump on the PTO
(reference Chelsea grease pack 379688).
Use CAUTION to ensure the support bracket does not pre-load pump / PTO mounting. When
mounting the pump, it should be fully supported by a jack until the support bracket is secured in
place, then the jack can be released. This will make sure the PTO is not being stressed by the bracket.
NOTE:
For Proper Bracketing, Attach at 2 or More
Transmission Bolt Locations and 2 or More
Pump Locations. Contact Transmission
Manufacturer for Proper Bracket Mounting
Locations.
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