R
epair
CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”.
[4] DISASSEMBLY/ASSEMBLY
[4]-1. Warning
Obey the following instructions in advance before repairing
.
•
Wear gloves.
•
Keep the cover on the blade other than a trial of engine running.
•
Cool down engine enough, as the engine just after used may cause you to get burned.
•
Remove the remaining fuel in Tank and Carburetor completely.
•
Repair the engine on the stable workbench and in the clean workplace to prevent dust and debris from entering.
•
Record where and how the parts are assembled, and what are the parts. Do not reassemble them wrongly.
It is recommended to prepare the several kind of boxes to keep parts group by group.
•
Treat the disassembled parts carefully. Clean and wash them certainly.
•
When some bolts and screws are difficult to loosen, use Impact driver.
•
Tighten the bolts and the screws to the specific torque as shown in
Fig. 65
.
•
Once the main parts are assembled, check every move and sound by manually turning each part.
•
Check the assembled parts by turning them manually if there is any unusual gap or sound around.
[1] NECESSARY REPAIRING TOOLS
[2] HANDLING OF GASKET
Code No.
Description
Use for
Retaining ring pliers ST-2 for External ring removing/ assembling Retaining ring
removing/ assembling Retaining ring R-24
Retaining ring pliers ST-2 for Internal ring
Pressfitting Spiral bevel gear 14 (the component of Cutter shaft set)
Bearing setting pipe 20-12.2
1R028
1R006
1R004
When Gasket is removed:
(1) clear something that is sticking on the matching portions with Gasket.
(2) replace Gasket with the new one.
Bearing setting pipe 28-20.2
removing Spiral bevel gear 14 (the component of Cutter shaft set)
removing Cutter shaft set
Bearing setting plate 10.2
removing Ball bearing 6001LLU
Gear extractor (large)
1R045
1R033
1R031
Air density tester
diagnosing Carburetor
removing / assembling M5 Hex socket head bolt
T-type hex. wrench 4-130
removing Clutch drum
Round bar for arbor 20-100
1R247
1R171
1R127
Round bar for arbor 8-50
removing Spiral bevel gear 14 (the component of Cutter shaft set)
pressfitting Clutch drum
Round bar for arbor 12-50
removing / assembling Retaining rings
Retaining ring S and R pliers
1R291
1R286
1R282
removing Flywheel
Flywheel puller
1R364
Wire brush
Adjusting Ignition coil, Spark plug and Rocker arm assembly
removing / assembling Flywheel
Hex socket bit 13
making Spark plug clean
M10-17 Hex. nut
removing Cutter shaft set
Feeler gauge set
1R366
Apply Makita grease N No.2 to Spiral spring in Recoil starter and the spline ends of Shaft.
When cleaning the inside of Gear case, apply 40g Makita grease N No.2 into Gear case.
When disassembling the engine, put ThreeBond 1216 to the matching surface of Crank case and Cylinder block. (
Fig. 61
)
[3] LUBRICANT / ADHESIVE APPLICATION
P
2
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