DR Power Tow Behind Premier 12.5hp B&S - Manual (Page 30)

30 TOW BEHIND DR ® FIELD and BRUSH MOWER
When performing any adjustment or maintenance, you must first shut off the engine, wait five (5) minutes to allow parts to cool
and disconnect the spark plug wire(s), keeping it away from the spark plug(s).
Troubleshooting Table (Continued)
S YMPTOM P OSSIBLE C AUSE
Engine smokes.  Check the oil level and adjust as needed.
 You may be operating the machine on too great an incline. See “Slopes and Uneven Terrain” on
page 22.
 Check the Air Filter(s) and clean or replace if needed.
 You may be using the wrong oil—too light for the temperature. Refer to your Engine Owner’s
Manual for detailed information.
 Clean the Cooling Fins and the Carburetor housing if they are dirty.
 If the Engine still smokes, visit our website at www.DRPower.com for assistance
The Belt frays or rolls
over the Pulley.  There may be a nick in a Pulley groove. Check the Belt for wear and hard spots. File off any
nicks on the Pulley.
 The Belt may be stretched; replace it. See page 25.
Blades vibrate when
engaged.  The Blade Carrier Mounting Bolt may not be tight enough. Tighten the Bolt as tight as possible
by hand with at least a 1ft long 13/16" Wrench.
 A Swinging Blade may be too loose on the Blade Carrier. Re-tighten the Swinging Blade
mounting hardware. See page 26. Be sure to turn OFF the Engine and remove the Spark Plug
wire(s) before performing this operation.
 Replace a Swinging Blade if it is chipped, bent, or broken.
 The Spindle Bearings may be damaged or the Spindle Shaft is bent.
 Call 1-800-DR-OWNER (376-9637) for assistance.
The Blades are not
cutting or are loose.  The Blade Carrier Mounting Bolt may not be tight enough. Tighten the Bolt as tight as possible
by hand with at least a 1ft long 13/16” Wrench.
 A Swinging Blade may be too loose on the Blade Carrier. Re-tighten the Swinging Blade
mounting hardware. See page 26. Be sure to turn OFF the Engine and remove the Spark Plug
wire(s) before performing this operation.
 Sharpen the Swinging Blades; they may be dull or nicked.
The Blades will not
Engage and/or
Disengage.  Faulty Blade Control Switch. Remove and replace the Switch on the Remote Control Panel.
 Faulty Electric Clutch. Call 1-800-DR-OWNER (376-9637) for assistance.
 Low or weak battery may cause electric clutch to not engage. Check battery for sufficient voltage.
Uneven cut.  The Step & Mow™ Height Adjuster and Versa-Hitch™ position are out of sync. Adjust the
cutting height or Versa-Hitch™ position so that the Out-Rigger™ Tow Bar is level with the
ground.
 Left and Right Step & Mow™ Height Adjusters are not at the same setting.
Clogging at discharge.  The Step & Mow™ Height Adjuster and Versa-Hitch™ position are out of sync. Adjust the
cutting height or Versa-Hitch™ position so that the Out-Rigger™ Tow Bar is level with the
ground.
Excessive Engine stalling.  The brush or grass is too heavy at the current cutting height or at the current Tow Vehicle speed.
Raise the cutting height and drive slower when cutting.