Makita UC4503A Chainsaw User Manual


 
Repair
P 4 / 8
< 3 > Disassembling Gear Housing (cont.)
3. Remove four 5x25 tapping screws and two 5x55 tapping
screws as illustrated in Fig. 6.
Removal of the screws will release tubular handle from gear
housing.
4. Remove tubular handle from the bottom side of gear housing L
as illustrated to left in Fig. 7.
5. Remove gear housing R from gear housing L as illustrated to
right in Fig. 7.
< 4 > Replacement of Straight Bevel Gear 43 and Oil Pump Complete
1. Remove gear housing R from gear housing L as described in "<3> Disassembling Gear Housing". (Fig. 5, 6, 7)
2. Remove ball bearing 608ZZ using Bearing extractor (No.1R269) (Fig. 8)
3. Remove safety washer from spindle. And now straight bevel gear 43 can be removed from spindle. (Fig. 8)
Note: Before installing a brand-new straight bevel gear 43, be sure to apply 3g of Makita grease N No.1 to its
gear teeth.
(to be continued to next page)
Fig. 6
Fig. 7
Fig. 8
Tapping
screw 5x55
Tapping
screw 5x25
Gear housing L
Tubular handle
Tubular handle
Gear housing R
Gear housing L
Oil tank
Straight bevel gear 43
Bearing extractor
(No.1R269)
Ball Bearing 608ZZ
Safety washer
A
[Gear housing viewed from the position A]