Product Manual

PRINCE MANUFACTURING CORPORATION/WORLD HEADQUARTERS • P.O. BOX 7000 • NORTH SIOUX CITY, SOUTH DAKOTA 57049-7000
URL: www.princehyd.com • E-MAIL: prince@princehyd.com • PHONE (605) 235-1220 • FAX (605) 235-1082
O.E.M. CUSTOMER SERVICE: (605) 235-1220 • FAX (605) 235-1082 DISTRIBUTOR CUSTOMER SERVICE: PHONE (605) 235-1220 • FAX (605) 217-6300
P3
PUMPS AND MOTORS
CATP 01-04-09-01
UNIQUE FEATURES:
Self-adjusting wear plates on
both sides of the gears.
Proper size hose adapters are
provided for inlet ports.
Two outlet ports are provided with
a NPT adapter for one port and a
plug to seal unused port.
Center section available in high
strength aluminum alloy for std.
duty cycle or in high strength cast
iron for high duty cycle use.
IDEAL FOR USE WITH......
Tractor front end loaders
Pull-type cotton pickers
Cotton balers (module builders)
Tractors imported without integral
hydraulics
• Landscape equipment
PLUS
STANDARD FEATURES:
Reliable
Efficient
Roller Bearings
Run fitted body
Internally splined drive shaft.
High-tensile cast iron end
plates.
• Slips onto tractor PTO shaft (no
gear box required).
Two-bolt installation on farm
tractors of all sizes.
Rotary mowers
Street Sweepers
• Back hoes
SELF ADJUSTING WEAR PLATES
Prince PTO pumps have self-adjusting wear plates
that seal around the two unequal size gears. These
plates, activated by internal fluid pressure, offset wear
or expansion.
FILTRATION
The pump must be used in a clean system with clean
oil. The fluid cleanliness should meet the ISO 4406
17/14 level. As a minimum, 10 micron filtration is
recommended.
HYDRAULIC FLUID
A good quality mineral base hydraulic fluid with a
viscosity in the 70-250 SUS range at operating
temperature is recommended.
OPERATING TEMPERATURE
Oil operating temperature should not exceed 180°F.
If it does, the reservoir may be too small or a heat
exchanger may be needed.
SHAFT SPEEDS
Prince PTO pumps are designed to operate at up to
110% of standard PTO shaft speeds. Standard speeds
are 540 rpm for the 6 tooth shaft and 1000 rpm for the
21 tooth shaft.
CLOSE RUNNING CLEARANCE FOR
HIGH FLOW RATE
Another feature that contributes to the excellent and
long-lived efficiency of the PTO-Series pump is the
minimum clearance between the gears and the center
housing. Each pump is assembled with zero clearance
between the housing and the tips of the gear teeth,
then test run until the teeth establish a proper wear
path in the housing. The result is a much tighter
clearance than found in traditional pumps.
PRESSURE RATING
Pumps are designed for 2250 PSI max. relief valve
setting. A relief valve, external to the pump, must be
provided in the system.
PORTS
All pumps are provided with an inlet port adapter (SAE
O-ring boss to hose barb) and outlet port adapter (SAE
O-ring boss to female pipe thread) sized appropriately
for the ports and required line sizes. A steel plug is
provided for the second outlet port.
RESERVOIR
As a guideline, a reservoir size in gallons should equal
the pump output in gallons per minute.
ALUMINUM CENTER HOUSING
Standard duty cycle
Reduced weight
Smaller housing
MODEL FEATURES
CAST IRON CENTER HOUSING
High duty cycle
Use in circuits with motors
Better at higher temperatures
Increased wear resistance
REAR PORTED
Higher flows
Simplified hose connections
Higher flows at reduced engine rpm
as compared to other PTO pumps
Prince PTO pumps are specifically designed for PTO drive operation on all sizes of farm tractors. No additional gear
box is required. Pumps are mounted by sliding the internally splined pump onto the PTO splined shaft and restraining
rotation with a torque arm.
PRINCE PTO HYDRAULIC PUMPS
Up to 40 gallons per minute and up to 2250 psi

Summary of content (4 pages)