Rhino Mounts DB150 Lawn Mower User Manual


 
OPERATION
DB150 07/11 Operation Section 4-28
© 2011 Alamo Group Inc.
OPERATION
10.1 Operating Instructions
Engage the PTO shaft at low engine RPM and speed the engine up after blades are fully engaged. Never
engage the PTO shaft at a high engine RPM. This could cause damage to the PTO shaft as well as the Speed
Increaser and Pump. Always operate PTO at the recommended RPM when mowing. This is necessary to
maintain proper blade speed and to produce a clean cut.
Proper ground speed for cutting will depend upon the height, type, and density of material to be cut. Normally,
ground speed will range from 2 to 5 mph. Tall dense material should be cut at low speed while thin medium
height material can be cut at a faster ground speed.
Always run the Mower at the highest position which will enable you to obtain the desired cutting results.
Allowing the blades to cut into the ground will cause wear and undue strain on the mower frame and mower
components.
If you are mowing in conditions of heavy growth or rough ground where the blades cut into the ground and the
tractor engine slows down, do not slip the clutch to allow the engine to speed up and engage the clutch again.
This procedure exerts tremendous strain on Mower components. Always disengage the PTO and move
forward or backwards until the machine is clear.
This mower is designed with free swinging blades. This feature reduces the amount of shock transmitted to
other components. Always make sure the blades can swing freely on the blade bar.
When cutting foliage and fine shredding is desired, run the mower level or slightly lower in the rear so as to
keep the material in the mower until it is shredded. This will require more power but will shred better. When
cutting heavy foliage and fine shredding is not desired, raise the rear of the mower. This will allow the high
volume of material to be discharged and requires much less power.
Do not ride the clutch on the tractor. Mow in the appropriate gears to give the correct ground speed.
10.OPERATING THE BOOM UNIT AND ATTACHED HEAD
THE OPERATOR MUST COMPLETELY UNDERSTAND HOW TO OPERATE THE TRACTOR AND
MOWER AND ALL CONTROLS BEFORE ATTEMPTING TO MOW. The operator must read and understand
the Safety and Operation Sections of this manual and the tractor operator’s manuals. These manuals must
be read and explained to any operator who cannot read. Never allow someone to operate the unit without
complete operating instructions.
To ensure safety to the operator, bystanders, and equipment and before starting any mowing operation. The
operator must become familiar with the area to be mowed, and any obstacles and hazards contained within.
Special attention should be paid to foreign debris, overhead obstructions, rough terrain, steep
slopes,passersby and animals in the area.
Only operate the mower head from the tractor operator’s seat with the seatbelt securely fastened. Only
operate a boom and equipped head on cabbed tractor that is equipped with a polycarbonate safety-protected
right side window or a non cabbed tractor equipped with a ROPS and operator safety screen.
Avoid operating in the reverse direction when possible. In situations where the boom and mower must be
backed to access areas to be cut, make sure there are no persons or other foreign debris behind the tractor.
When backing, operate the tractor at a much reduced ground speed to ensure complete control of the unit is
maintained. OPS-B- 0007