While the 2 line setup is generally less expensive, the 3 line setup may save you money in the long run.
A 3 line dump pump setup allows your pump to run cooler, run longer and it is recommended when ever you have multiple cycles (up and down) on the same load. In other words, if your truck gets loaded, you drive, dump your entire load and then return for a new load, you can probably get away with using the 2 line setup. Typically you will always get longer service from a 3 line setup than a 2 line setup. That can save you money and keep you on the road longer. Click here to see the difference in hooking up the 2 systems.
The number of teeth counted by measuring 3.14" around a gear.
"Intermittent Service" as used in the Muncie QR2001 Application Catalog refers to an on/off operation under load. If maximum horsepower (HP) or torque (lb. ft.) are being used for extended periods of time (5 minutes or more every 15 minutes), then it must be considered as "Continuous Service" and the horsepower rating and service life expectation must be reduced. Operating at both maximum HP and maximum torque is not recommended and PTO life will be limited.
PTO's used for continuous service must be considered to have reduced horsepower capacity. In most cases the capability is reduced by 30% of the standard rating.
Backlash is defined as the space between meshing surfaces of the gears in gearbox devices. Space is needed for expansion caused by heat and viscosity changes in lubricants.
The rotation shown for each PTO on the application sheets specifies "crnk" or "opp", indicating rotation of the PTO output shaft in relation to the rotation of the engine crankshaft. All engine crankshafts rotate in the same direction: CW when viewed from the front of the engine. See page 20 in the Muncie Quick Reference Catalog for a more detailed description.
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