Greenlee Textron / Subsidiary of Textron
4
4455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070
950-M3 Basic Hydraulic Power Pump
Introduction
The 950-M3 Hydraulic Power Pump is a high-pressure
hydraulic power pump which is simple to operate,
lightweight, durable and portable.
This power pump has a built-in high volume / low
pressure pumping feature which gives fast approach
ram action and automatic changeover to low volume /
high pressure when pressure exceeds 100 psi. The
pumping unit consists of one piston, radial-type, capable
of developing 10,000 psi.
Assembly
The 950 Power Pump is completely assembled and is
shipped to you as a complete pumping unit. The only
assembly necessary is the connections of the ram to the
pump.
Operating Instructions
This pump is designed to operate at 10,000 psi inter-
mittently. For continuous service, such as production
work, the pressure should not exceed 6,000 psi. This
limitation is for engine protection only.
Before operating pump, check the following to assure
proper service:
1. The gasoline engine is shipped without oil or gaso-
line; refer to the manufacturer’s instruction manual
for recommended type and quantity before starting
engine.
2. Check tightness of hose connections before starting
engine.
3. Check hydraulic oil with dipstick (52). Oil should be
within 1/2" of reservoir top.
4. Start engine and allow the pump to idle a few min-
utes. This will allow the hydraulic oil to work into
moving parts and give prime to the pump.
Filling Oil Reservoir
In order for the pump to operate properly, the oil
reservoir must be kept filled with a good grade of light
hydraulic oil. Use Greenlee Hydraulic Oil 905 0806.8
(quart) or 905 1059.3 (gallon) or equivalent.
Eight quarts are required, of which 6-1/4 quarts are
usable. A minimum of 1-3/4 quarts must be at the
bottom of the reservoir at all times during operation.
Be sure that the complete operation does not require
more than the usable amount of oil.
To refill or add oil to the reservoir, proceed as follows:
1. Remove vent plug from top of reservoir.
2. Add oil to within 1/2" of reservoir top when ram is
retracted.
3. Install vent plug securely.
Note: Before operation, be sure vent plug is not
clogged.
Draining Oil Reservoir
Unscrew and remove 3/4 inch pipe plug (51) from side
of pump base. Turn pump on its side to drain all oil from
reservoir. Be sure to replace plug before refilling reser-
voir with oil.
Never use synthetic fluids or fluids with poor lubri-
cating qualities (i.e., brake fluids, etc.), as permanent
injury to the pump will result.
Service
