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P 8/ 25
Repair
(4) Mount Shear blade assembly in the Gear case while fitting Shear blade’ boss into the hole of Connecting rod.
Fix the Shear blade assembly to Gear case by driving Hex socket head bolt through the Holder and
each Sleeve 5.
Note: • Do not forget to mount Seal. (Fig. 14)
• Apply Makita grease N. No.2 to the portion designated with black triangle. (Fig. 15)
(1) Loosen Hex lock nut.
(2) After tightening Hex socket button head bolt, turn it back by 1/4 to 3/8 counterclockwise.
(3) Tighten Hex lock nut fully while locking Hex socket button head bolt with Hex wrench. (Fig. 16)
(4) Check the clearance by inserting 1R366 into the gaps of all Hex socket button head bolts. (Fig. 17)
ASSEMBLING
[3] DISASSEMBLY/ASSEMBLY
[3] -5. Shear Blade (cont.)
Fig. 15
Apply the both of Cam portions
which accept Connecting rods.
Cam portion
Connecting rod
Connecting rod
ADJUSTMENT
Fig. 16
Tighten Hex lock nut.
Fig. 17
• If 0.4 gauge can be inserted, the clearance is too big.
It causes poor cutting performance.
• If 0.2 gauge can not be inserted, the clearance is too tight.
It causes over consumption of fuel due to high friction load
and heavy load on gears.
Gear case
Spur gear 43
SealHolder
Fig. 14
Boss
Lock Hex socket button
head bolt.