Makita UC3520A Technical Information

P 8 /10
Repair
[3] DISASSEMBLY/ASSEMBLY
DISASSEMBLING
[3] -2. Brake Mechanism and Armature (cont.)
10) Remove Brake band by unscrewing Tapping screw 4x18, then disconnect Brake ring from Rod. (Fig. 16)
11) Remove Rod from Bearing holder. (Fig. 17)
Fig. 16 Fig. 17
Brake band
Bearing holder
Compression spring 5
Brake ring
Tapping screw 4x18
Flat washer 5
Rod
Take off rod from the slit by pulling in the direction
of Brake band installation side.
Rod
1) Assemble the components of Brake mechanism to
Bearing holder. (Figs. 17, 16, 15)
Note:
*Engage the notch on Brake band with the projection on
Brake ring when assembling Brake band to Bearing holder.
Otherwise Armature cannot be unlocked when Switch lever
is pulled for starting operation. (Fig. 18)
*Compression spring 9 of link plate complete has to be set
in the rib of bearing holder exactly. (Fig. 15 on page 7)
2) Unlock Kick back brake with pliers. (Fig. 12 on page 7)
3) Assemble Rod to Bearing holder as illustrated in Fig. 11 on page 6.
Kick back brake and brake synchronized with Switch lever are both unlocked in this step.
4) Assemble Armature to Bearing holder. (Fig. 13 on page 7)
5) Assemble Lubricating mechanism to Bearing holder. (Figs. 6, 5, 4, 3 on page 3)
6) Pull Switch lever to loosen Brake band.
7) Engage Spur gear 43 mounted to Housing (R) with Spur gear 12 mounted to Armature.
Then turn Sprocket until Cam of Spindle fits in the loop portion of Crank.
8) Secure Housing (R) to Housing (L) with nine 4x18 Tapping screws. (Fig. 2 on page 3)
ASSEMBLING
Fig. 18
notch
projection
Brake band
Brake ring
Rod

Makita UC3520A Specifications

General

Power source	AC
Chain pitch	3/8 \
Chain speed	13.3 m/s
Product color	Black, Blue
Automatic oiling	Yes
Chain bar length	350 mm

Weight and Dimensions

Width	436 mm
Height	244 mm
Length	200 mm
Weight	3800 g