Spark Arrester Screen Maintenance.
If the engine becomes sluggish and low on power, check and clean the spark arrester screen.
WARNING!
BURN DANGER! The engine will become very hot during normal operation. Let engine cool before servicing.
WARNING!
Never operate the unit with a dam- aged or missing muffler or spark arrester! Operating with a missing or damaged spark arrester is a fire hazard and could also damage your hearing.
1. | With a 3 mm hex wrench remove the |
| 4 engine cover screws and the engine |
| cover. See Figure 28. |
2. | With a 4 mm hex wrench remove the |
Cover
Engine Cover
Screws
Muffler
Muffler
Gasket
Muffler
Bolts
|
| Spark Arrester |
|
| Screen |
| PB2500.20 | Spark Arrester |
| Cover | |
|
| |
Figure 28 |
| Cover Screws |
ENGLISH
3 muffler bolts and the muffler. |
See Figure 28. |
3. With a small flat bladed screwdriver |
remove the 2 screws holding the |
spark arrester screen and cover to |
the muffler. See Figure 28. |
4.Remove the screen and clean it with a stiff bristle brush.
5.Inspect the cylinder exhaust port for any carbon buildup.
6.Reassemble the spark arrester, muffler and engine cover in the reverse order of disassembly.
IMPORTANT!
If you note excessive carbon buildup, consult with an authorized Shindaiwa servicing dealer.
300-hour Maintenance
Gearcase Lubrication
The gearcase should be filled with 60 cc (2.0 fl.oz.) of Mobil SHC634 Synthetic Gear Oil. A maximum of
overfill! |
PB2500.21 |
Figure 29 |
Replacing the gearcase oil
WARNING!
BURN DANGER! The gearcase will be extremely hot after use!
1.Disconnect spark plug wire at engine.
2.Remove the LH Drum and axle assembly (as viewed from the operat- ing position). Wipe the sideplate clean and remove four screws (it is not necessary to remove the gearcase from the outer tube).
3.Turn gearcase side plate to break the seal and lift the plate from the gear- case. See Figure 29.
NOTE:
It may be necessary to use a heat gun to soften the sealer material.
4.Turn the gearcase to the LH side and allow all used gearcase oil to drain into a small container and properly dispose of as in accordance with your local regulations.
5.Place the gearcase on the RH side and supported so the outer tube is parallel to the ground. Refill the gearcase with 60 cc (2.0 fl.oz) of Mobil SHC634 Synthetic Gear Oil to the bottom of the chamfer on the output gear. The
Fill to |
this level |
PB2500.22 |
Figure 30 |
correct oil depth is 5/8" (15.5 mm). See Figure 30. DO NOT OVERFILL!
6.Inspect the sideplate for damage and clean off all remaining liquid gasket material with brake cleaner or acetone. Coat the outer sealing flange of the sideplate with Loctite Ultragrey Silicon Sealant or Threebond No. 1104 Liquid Gasket.
7.Replace the cover and install the four sideplate screws. Tighten securely.
8.Reinstall the drum and axle assembly per the sweeper assembly instructions. See page 9.
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