Troubleshooting
18
3A5919A
Troubleshooting
To avoid injury from unexpected start up, disconnect
spark plug wire and black battery cable (DC1021 G
only) before you service your unit.
Problem
Cause
Solution
Engine will not start
Engine switch is OFF.
Turn engine switch ON.
Engine is out of gas.
Refill gas tank (see engine manual.
Engine oil level is low.
Try to start engine. Fill oil if necessary (see engine
manual).
Spark plug cable is disconnected or damaged.
Connect spark plug cable or replace spark plug.
Engine is cold.
Use engine choke.
Fuel shutoff lever is in OFF position.
Move shutoff lever to ON position.
Oil is seeping into combustion chamber.
Remove spark plug. Pull starter 3 or 4 times.
Clean or replace spark plug. Start engine. Keep
sprayer upright to avoid oil seepage.
DC1021 Model Only:
Emergency shut-off switch is OFF.
Turn emergency shut-off switch ON.
DC1021 Model:
Not attached to LineDriver.
Attach LineDriver to unit.
Engine operates, Line-
Driver will not move forward
or reverse
Low hydraulic oil
Fill with Mobil 1 (15W-50) synthetic oil
Wheel release is open
Close; hand tighten.
Engine operates, Line-
Driver moves slowly in for-
ward or reverse
Low hydraulic oil. Parking brake is set.
Fill with Mobil (15W-050) synthetic oil. Release
parking brake.
Wheel release is open
Close; hand tighten.
Engine shuts off when
operator exits LineDriver
Safety switch
Set parking brake
Engine continues to run
when operator exits Line-
Driver and parking brake is
not set
Safety switch
Adjust and set parking brake. Replace safety
switch and/or any connecting wires.
Engine misses during turns
and forward and reverse
changes
Engine oil low
1.
Consult engine manual for proper oil.
2.
Keep engine oil full to avoid nuisance stalls
caused by Oil Alert sensing low oil levels.
Uneven cut
Unbalanced tire pressure
Check tire pressure to make sure both tires are at
60 ft-lb.
Not cutting
Cutters are worn or damaged
Replace cutters.
Engine runs for short time
and stops
Fuel flow restriction
See engine manual
Unit vibrates excessively
Cutters not centered on drum.
Reassemble drum with cutters centered on drum.
Bearings are starting to wear out.
Replace bearings.
Cutters are worn or damaged.
Replace cutters.
Groove is not even when
using diamond blades
Drum rod is not level with drum adjustment wheels.
Adjust drum adjustment wheels so wheels and
hex rod are level.
Engine bogs down while
grinding
Depth of cut is too deep.
Raise drum.
Unit is moving too fast.
Slow down.
Not removing material while
cutting
Cutters are worn.
Replace cutters.
