10/15-Hour Maintenance
Clean the
spark plug and
check the gap
Figure 19
50-Hour Maintenance
Every 10 to 15 hours of operation:
nRemove and clean the spark plug. Adjust the spark plug electrode gap to 0.024 0.028 inch
NOTE:
The NGK BPMR6A also meets the require- ments for electro magnetic compliance (EMC).
CAUTION!
Before removing the spark plug, clean the area around the plug to prevent dirt and debris from getting into the engine’s internal parts.
Every 50 hours of operation (more frequently in dusty or dirty conditions):
nRemove the cylinder cover and clean grass and dirt from the cover and cylin- der fins.
nRemove the cutting attachment, cutting attachment holder and gear shaft collar. Remove the filler plug from the side of the gearcase and press new grease into the gearcase until grease is pushed out. Use only
Old |
|
| New |
|
| Grease | |
Grease |
|
| |
|
|
| |
|
| Blade | Output |
|
| Shaft Collar | |
Shaft | Bolt | Holder | Holder |
Bolt | Guard | A | B |
Figure 20 |
|
|
Use a hooked wire to extract the fuel filter from inside the fuel tank. See figure 21.
CAUTION!
Make sure you do not pierce the fuel line with the end of the hooked wire. The line is delicate and can be dam- aged easily.
Remove and replace the filter element. Before reinstalling the new filter ele- ment, inspect the condition of all the fuel system components (fuel
Hooked |
Wire |
Filter Element |
Figure 21 |
Lubricate the Flexible Shaft.
Lack of lubrication will cause rapid wear to the flexible shaft and also to the shaft tube liner, resulting in increased vibration and greatly decreased service life. Remove and lubricate the flexible shaft as follows:
Gearcase Index |
Screw |
Flexible Shaft |
Shaft Tube |
Figure 22 |
1.Loosen the gearcase clamp screw.
2.Remove the gearcase index screw.
3.Slide the gearcase and shield assembly from the shaft tube.
4.Pull the flexible shaft from the shaft tube assembly, and clean the shaft thorough- ly in solvent.
5.Inspect the shaft carefully, and replace if worn or damaged. If flexible shaft is worn and needs replacement, liner should also be replaced.
6.Coat the entire length of the shaft with Shindaiwa Premium Gearcase Lube (or equivalent), and reinstall the shaft in the shaft tube assembly.
NOTE:
For extended shaft life, the flexible cable should be reversed
7.Insert the flexible shaft into the female end of the gearcase pinion.
8.Install the gearcase on the shaft tube in the reverse order of removal.
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