MAINTENANCE
86343970 18HP LIGHTNING BURNISHER
3-3
TROUBLESHOOTING
Note: When trouble occurs be sure to check for simple causes, which at first may seem too obvious to be
considered. For example, a starting problem could be caused by fuel starvation due to an empty propane
cylinder or an unopened service valve. If you don't check for this, starter burnout could result.
1. SURGING IDLE -
To smooth out the engines' idle characteristics, adjustment is provided by an idle screw
on the lower left side of the carburetor as viewed from the operator's position. The screw is bright steel
and 1/4" in diameter with a Phillips head on it. Rotating the screw clockwise will increase the idle speed
and this should cure the "surging idle". IF IT DOES NOT, call our customer service department for
assistance.
2. EXCESSIVE
VIBRATION
-
Look for the following possibilities:
•
Pad is off center. Remove and reinstall.
•
Pad Driver is cracked. (Possibly from striking a curb or bolt in the floor) Replace at once with a new
part.
•
Bearings in Front End Assembly are worn. Place machine on its side where the muffler is mounted.
Grip Pad Driver and move up, down and from side to side to check for slack in the bearings. If this is
the case, then to affect a proper repair, the bearings should be replaced and possibly the shaft.
3. ENGINE STARTS AND IDLES, BUT WILL QUIT AS THE THROTTLE IS ADVANCED -
It is possible
that the propane tank's service valve is faulty. To check for this, close the valve completely and then
reopen very slowly while you listen for a "click" when the gas begins to travel through the valve. If you
hear this very slight noise, the valve is only partially opening. This allows enough gas through to start and
idle the engine, but not enough for full throttle operation. As the throttle is increased, allowing more air to
enter the intake, the engine will quit from fuel starvation. Call your dealer or the factory for instructions on
where to have the service valve replaced. Meanwhile, to get by, you can continue to open the service
valve until you don't hear a “click" and then the engine will run normally. IF IT DOES NOT, call our
customer service department for further assistance.
4. THE BURNISHER SEEMS TO RUN WELL BUT DIES DOWN WHEN THE PAD IS PLACED ON THE
FLOOR OR SOON THEREAFTER -
Check for the same problem as in #3.
5. EXCESSIVE NOISE FROM UNDER BURNISHER -
If this problem has developed after use of the
machine from new, then the first place to check is the Tensioner. As a new belt wears in, it naturally
stretches a bit and the tensioner will begin to rattle. Place the burnisher on its side (with the muffler down)
and reset by taking up the slack in the belt and tighten the Tensioner.
6. STARTER BARELY TURNS THE ENGINE OVER or THE SOLENOID JUST CLICKS ON 12 VOLT
MODELS –
The battery is likely low in charge. This can be remedied by recharging the battery using a 12
volt battery charger at 4.12 amperes. The battery is located under the frame at the rear of the burnisher.
The positive post is the one with the RED cable attached to it. Follow the instructions that came with the
battery charger. REMINDER: this will continue to happen unless the burnisher's engine is run for
sufficient time between starts to recharge the battery.
7. KAWASAKI V-TWIN – ENGINE BEGINS TO BACKFIRE REGULARLY, SUDDENLY -
Check the
sparkplug boots. One is likely cracked, possibly due to contacting a corner of a shelf or a door frame.
Remove the sparkplug lead from the sparkplug and replace the boot. The engine should now run
smoothly. IF IT DOES NOT contact our customer service department for further assistance.