DR Power Z-Mower 19.5 HP Versa-Pro - Manual (Page 50)

46 DR
®
VERSA-PRO
™
Z-MOWER
WHEN PERFORMING ANY ADJUSTMENT OR MAINTENANCE, YOU MUST FIRST SHUT OFF THE ENGINE,
SET THE PARKING BRAKE, WAIT FIVE (5) MINUTES TO ALLOW PARTS TO COOL AND DISCONNECT THE
SPARK PLUG WIRE(S), KEEPING IT AWAY FROM THE SPARK PLUG(S).
S YMPTOM P OSSIBLE C AUSE
The Engine lacks
power or is not
running smoothly.
(Please refer to the
Engine Owner’s
Manual for Engine-
specific procedures.)
⇒ Check the Throttle Lever travel and adjustment. Make sure the Throttle Lever is
in the Run position.
⇒ Check that the Air Filter is clean. If it is dirty, change it following the procedure in
the Engine Owner’s Manual.
⇒ The Spark Plug(s) may be dirty or cracked, change it. If it is oily, leave it out, hold
a rag over the Plug Hole(s) and crank the Engine several times to blow out any
oil in the cylinder(s), then wipe off the Plug(s) and reinsert it.
⇒ The gas must be fresh and clean. If it is old, change it. Use a fuel stabilizer if
you keep gas longer than four weeks or so.
⇒ Check the Fuel Filter, it may be clogged. Replace if necessary.
⇒ Check to make sure that your Engine has the right amount of clean oil. If it is
dirty, change it following the procedure on page 28.
⇒
If your Engine still lacks power, visit our website at www.DRPower.com or call
1-800-DR-OWNER (376-9637) for assistance.
Engine smokes. ⇒ Check the oil level and adjust as needed.
⇒ You may be operating the machine on too great an incline. See Slopes 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 if they are dirty.
⇒ If the Engine still smokes, visit our website at
www.DRPower.com or call
1-800-DR-OWNER (376-9637) for assistance.
Engine runs fine but
the machine will not
move.
⇒ The Drive Belt is broken or out of adjustment. See pages 30 and 31.
⇒ The Transmission may be defective, visit our website at
www.DRPower.com or
call 1-800-DR-OWNER (376-9637) for assistance.
A Belt frays or rolls
over its Pulley.
⇒ A Pulley groove may be nicked. Check the Belt for wear and hard spots. File off
any nicks on the Pulley.
⇒
The Belt may be stretched; replace it.