Specifications

© 2002 Alamo Group Inc.
Parts Section -131
Triumph Sickle Bar (Archive Book) 10/02
MODEL PARTS INFORMATION
Oil Flow, Pump & Motor (Open Center Models)
The Following Data is Standard for all Open Center System
Mounted with Alamo (Triumph) Pumps (Open Center Only)
1. Pump Output (GPM) Tractor Engine (RPM) Pump PSI (PSI)
A. 9.5 GPM 1500 RPM 2000 PSI Max.
B. 12.2 GPM 2000 RPM 2000 PSI Max.
C. 15.0 GPM 2500 RPM 2000 PSI MAx.
2. Governor rated @ 20 GPM Maximum Input. 8 GPM (9 GPM optional) priority Flow,
Excess flow returned to reservoir. Pressure drop approimately 50 PSI @ 8 GPM.
3. Control valve rated @ 20 GPM @ 2000 PSI Max. Built in relief valve set @ 1650 PSI.
Pressure drop approximately 35 PSI @ 8 GPM.
4. Reservoir Capacity Using Alamo (Triumph) Tank. (Old or New Style Tank)
Old Reservior System = Reservoir 6 quarts, Total system capacity 7.5 to 8 quarts.
New Reservior System = Reservoir 2.5 gal. & Total system capacity 3.5 gal. (2.5 gal
measureing to sight glass in tank)
5. Recommended Oil 10W.30 or 10W.40 MS, This was changed in the early 1990's to a
Universal Hyd Oil. Either Oil Will function in unit to specifications.
6. Oil Filter = 100 micron reusable type.
7. System Operating Pressure:
A. Free Running Knife (No Work Load) 100 to 1250 PSI
B. Average Cutting, Roadside Grass 400 to 500 PSI
C. Dense Grass & Most Weeds 500 to 800 PSI
D. Dense Weeds, Light Brush & Vines 800 to 1200 PSI
E. Control ValvePressure Relief Setting 1700 PSI Max.
8. Operating Temperature in Dense Material @ approximately 800 to 1200 PSI = 70 to 90
deg. F. above ambient Temperature in continuous cutting, Material, RPM, Ground Speed
and Mechanical conditions on Components can make this vary. Lighter cutting conditions
should decrease temperature as worn component or heavy material will increase it.
9. Power Requirements (General Rule of Thumb) = 1 HP per Foot of Cutterbar
A. This rule can vary depending on material being cut and terrain.
NOTE: All of the above applies as well to Mower Models operated from the Tractor Hydraulic
Supply, providing pump capacity and pressure ratings are compatible torequirements
above. Also these must be free for supply to mower and not be shared with some other
Tractor funtion.
ABOVE INFORMATION WILL NOT APPLY TO CLOSED CENTER SYSTEMS