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Parker Hannifi n Corporation
Hydraulic Pump/Motor Division
Greeneville, Tennessee USA
Service Manual
HP2 Series Hydrostatic Tandem Pumps
HY13-1521-M1/US
Maintenance
System Maintenance Tips
• Adjust fl uid level in reservoir as necessary.
• Encourage all operators to report any malfunction or accident that may have damaged the hydraulic
system or component.
• Do not attempt to weld any broken HP2 Tandem pump component. Replace the component with origi-
nal equipment only.
• Do not cold straighten, hot straighten, or bend any HP2 Tandem pump part.
• Prevent dirt or other foreign matter from entering the hydraulic system. Clean the area around the fi ller
caps before checking oil level.
• Investigate and correct any external leak in the hydraulic system, no matter how minor the leak.
• Comply with manufacturer’s specifi cations for cleaning or replacing the fi lter.
CAUTION
Do not weld, braze, solder or in any way alter any HP2 Tandem pump component.
CAUTION
Maximum operating pressure must not exceed recommended HP2 Tandem pump pressure
capacity.
CAUTION
Always carefully inspect any system component that may have been struck or damaged dur-
ing operation or in an accident. Replace any component that is damaged or that is question-
able.
CAUTION
Do not force any coupling onto the HP2 Tandem pump coupling shaft as this could damage
the unit internally.
Parker Pump/Motor Operation extends close technical cooperation and assistance. If problems occur which you
cannot solve, please contact our service department at (423) 639-8151, or your local Parker approved distributor.
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