12 DR
®
FIELD and BRUSH MOWER
Chapter 3: Operating the DR FIELD and BRUSH MOWER
You may find it helpful to review the DR FIELD and BRUSH MOWER Controls and Features in Figure 2 on page 7 before reading
this chapter.
Steering Brake Burnishing and Clutch Burnishing are very important procedures that must be done prior to using the Brush
Mower to ensure optimum performance. Please read the following section to understand how to carry out these procedures
before starting the machine and perform these procedures as soon as you get the machine started.
Steering Brake Break-in (Burnishing)
If your DR Field and Brush Mower is equipped with Steering Brakes, the Brake Pads and Rotors need to be broken in (burnished)
during the first use to ensure the best performance. Please complete the following steps before using your machine and after you
have read through Chapter 3:
1. Refer to Chapter 3 to start the machine and shift into second gear.
2. Engage the Traction Drive Lever to drive the machine forward.
3. Apply both brakes equally with moderate force and hold the brakes on for 100 feet.
4. Release the brakes for 25 feet.
5. Re-Apply both brakes equally with moderate force and hold the brakes on for another 100 feet.
Clutch Break-in (Burnishing)
The Blade Clutch on your machine should be burnished before use. This will ensure that the optimum engaging and braking
action can be achieved. This procedure should be performed when the Clutch is new and before you use the machine for the first
time.
1. The machine must be fully assembled and set up as detailed in this manual before performing the following burnishing
procedures. Use these instructions along with the “Starting” and “Operating” sections of your manual.
2. Start the Engine and set the machine to half Throttle.
3. Engage the Blade Clutch for 2 seconds, disengage and let it cool down for 10 seconds.
4. Repeat step 3 for 50 cycles to fully burnish the Clutch.
Avoid contact with the Brake Calipers and Rotors during and after this procedure because the Brake rotors will become very hot
and may burn you.
This machine must have the Clutch “Burnished” before initial use to ensure that the Clutch performs at its full potential.
The longevity and efficiency of the Clutch will be compromised if this procedure is not performed.
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