Makita UC3003A Chainsaw User Manual


 
Repair
P 5 / 8
< 4 > Replacement of Straight Bevel Gear 43 and Oil Pump Complete (cont.)
< 5 > Replacement of Clutch Drum and Brake Spring
4. Remove Holder by removing BT3.5x9.5. Oil pump complete can now be removed from Gear housing (R). (Fig. 9)
Note: When installing new Oil pump complete, apply 1g of Makita grease N. No.1 to Worm gear.
1. First release Clutch drum from Brake spring using Retaining ring R pliers (No.1R005) as described below.
Insert one jaw of the pliers into the hole of Brake spring holder, and then put the other jaw on the edge of
Gear housing R as illustrated to left in Fig. 10.
Close the pliers until Brake spring holder is locked in the position as illustrated to right in in Fig. 10.
Now clutch drum is released from Brake spring.
2. By removing Safety ring and Flat washer 8, Clutch drum can be removed from Gear housing R. (Fig. 11)
Fig. 9
Fig. 10
Fig. 11
Tapping screw BT3.5x9.5
Holder
Oil pump complete
Worm gear
Brake spring
holder
Brake spring
Gear housing R
Retaining ring R
pliers (No.1R005)
Clutch drum is locked
with brake spring.
Clutch drum is released
from brake spring.
Clutch drum
Safety ring
Flat washer 8
Washer
Pressure spring
Clutch drum
Claw coupling
Gear housing R
Brake spring
Clutch drum
(to be continued to next page)