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BASIC OPERATION
Starting Procedure
1. While the excavator’s engine is turned OFF, and all moving parts have completely
stopped, remove outer spindle cover.
2. Check to see that the brush mower is in the down position and blades are not touch-
ing the ground. Start the engine and set throttle at idle speed. Important: Do not
start the operating vehicle until the brush mower has been carefully checked
for correct assembly and installation. Be sure that all observers are at least
100 feet clear of the machine.
3. Check pressure settings and make sure that the brush mower circuit is set to 3000
PSI and the thumb circuit is set to 2500 PSI.
4. With low RPM, turn on the auxiliary flow hydraulics. Do not engage auxiliary flow
hydraulics at a high engine speed.
5. Slowly bring up the RPM to maximum flow/efficiency. The brush mower should be
operating at 1500-1800 RPM. The RPM can be checked on the idler end side of
the mower using the shaft center. To do this, you will need a handheld tachometer
as shown in the photo below. Simply insert the end of the tachometer into the hole
in the center shaft. When checking the RPM with this method, it should be around
1700 at full throttle with nothing else running on the power unit. Use extreme cau-
tion when checking RPM near rotating parts!
6. Listen and feel for excess vibrations. Should excess vibrations occur, disable auxil-
iary flow hydraulics and shut the machine down. Determine and correct the prob-
lem before continuing work.
7. When work is finished, disable auxiliary flow hydraulics, shut off operating vehicle,
set parking brake and check hydraulic motor and surrounding parts for excess heat
or any leaks. Then replace shaft cover.
BASIC OPERATION 9
Tachometer Usage
Auxiliary Hydraulics Control