DR Power Walk-behind Pro - Manual (Page 28)

28 DR ®
FIELD and BRUSH MOWER
Troubleshooting Table (Cont.)
S YMPTOM P OSSIBLE C AUSE
Wheels pulling left or
right. ⇒ Check the Wheel Tire pressures against the manufacturer’s recommendation listed on the
side of the Tires.
The Wheel Drive Clutch
and/or Brake lever will
freeze up during cold
weather operation. ⇒ Moisture is getting into the Cable housing(s) and freezing. Using a lubricating syringe, inject
“dry gas” into the Cable-Housing opening to absorb the moisture. Tip the machine forward
slightly so the “dry gas” will flow down the inside of the Housing. After the ice blockage has
thawed, lubricate the cable(s) with SAE 30 oil. See page 16.
The Differential Lock
In/Out will not unlock
(stays in the Lock In
position). ⇒ Grass and debris has probably accumulated on the Differential Lock In/Out Sleeve. Clean
and lubricate the Sleeve. See page 16.
⇒ The Differential Lock In/Out Cable is broken or out of adjustment. See page 21.
⇒ If the problem persists, visit our web site at www.DRpower.com for assistance.
The Differential Lock
In/Out will not Lock In
(stays in the Lock Out
position) ⇒ The Differential Lock In/Out Cable is broken or out of adjustment. See page 21.
⇒ If the problem persists, visit our web site at www.DRpower.com for assistance.
Before performing any maintenance procedure or inspection, stop the engine, wait five (5) minutes to allow all parts to cool.
Disconnect the spark plug wire(s), keeping it away from the spark plug(s).